18 10 1981 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Jyothishkumar, V Ganesan, V Date A point or period of time associated with an event in the lifecycle of the resource 2009-02-10 Description An account of the resource Present work is concerned with the flow field analysis inside a marine annular gas turbine combustor under non-reacting as well as reacting flow conditions. Three-dimensional gas turbine combustor of 20-degree sector geometry has been created and meshed using the pre-processor GAMBIT. Flow through the combustor has been simulated using FLUENT code by solving the appropriate governing equations viz. Conservation of mass, momentum and energy. The RNG k-ε turbulence model is used for physical modeling. Combustion has been modeled using the Probability Density Function (PDF) approach. Total pressure loss has been studied for the isothermal as well as reacting flow case. For reacting flow overall pressure loss across the combustor has been evaluated. Keywords: Combustor, Recirculation region, Non-reacting flow. doi: 10.3329/jname.v2i1.2027 Journal of Naval Architecture and Marine Engineering 2(1)(2005) 21-32 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/2027 10.3329/jname.v2i1.2027 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/2027/1887 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 1 (2005); 21-32 2070-8998 1813-8535 Subject The topic of the resource Combustor Recirculation region Non-reacting flow Title A name given to the resource Modeling of marine gas turbine combustor under non-reacting and reacting conditions Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Liu, P Colbourne, B Shin, Chin Date A point or period of time associated with an event in the lifecycle of the resource 2009-02-10 Description An account of the resource An unsteady 3D surface panel method has been developed to predict hydrodynamic load fluctuations on an ice class propeller induced by continuous variation of proximity to an ice block. The low order, time domain, combined doublet and source panel method approximates the doublet and source distribution uniformly over each panel on the propeller blades. For non-lifting bodies, i.e., the hub and ice block, only sources are distributed over the body surfaces. The simulation model is contrived in such a manner that the ice block and surrounding fluid remain stationary; and at each time step, the propeller rotates and advances forward in the inertial reference frame. This numerical model is validated with previous fixed-proximity experimental measurements and good agreement is obtained. Prediction of the fluctuating hydrodynamic load is carried out as a full dynamic interaction between the ice block and the propeller. Results for this study are compared with previous fixed-proximity numerical models and experiments. The new dynamic model establishes a basis for analysis of a more realistic fluid-structure interaction, which could, in the future, include ice block acceleration due to suction force and ice block impact loading on the propeller blade and shaft. Keywords: Marine Propulsion, Panel Methods, Unsteady Loading, Ice-Propeller Interaction doi: 10.3329/jname.v2i1.2026 Journal of Naval Architecture and Marine Engineering 2(1)(2005) 15-20 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/2026 10.3329/jname.v2i1.2026 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/2026/1886 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 1 (2005); 15-20 2070-8998 1813-8535 Subject The topic of the resource Marine Propulsion Panel Methods Unsteady Loading Ice-Propeller Interaction Title A name given to the resource Prediction of transient loading on a propeller from an approching ice block Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Subramanian, V Anantha Subramanyam, PVV Date A point or period of time associated with an event in the lifecycle of the resource 2009-02-10 Description An account of the resource Tunnels are provided in ship hulls to accommodate propellers under reduced draught conditions, thereby avoiding reduction of propeller diameter and consequent loss of efficiency. In this work the hydrodynamic effect of propeller tunnels in high speed craft, by way of modified resistance and pressure distribution, are studied both numerically using CFD, and experimentally using geometrically scaled models. The experimental study has been conducted on the model of a single hard chine hull form designed for specific length to displacement ratio. The parametric study considers two other draught conditions. In order to bring out pressure influences, CFD based simulations have been carried out. It is noted that the pressure distributions are altered around the tunnel region and, for an investigated case of tunnel area ratio, there is consistent reduction of resistance for all the three draught conditions tested. The study also compares the merits of the modified Froude extrapolation method, after correction for flow velocity due to pressure development in the hull zone, with the classical Savitsky's method for planing hulls. The qualitative aspects with respect to pressure distribution are brought out in the CFD based studies and the pressure predictions do show consistency with obtained experimental data. Keywords: High speed planing craft, Tunnels, Resistance, Extrapolation methods, Pressure distribution, CFD Studies. doi: 10.3329/jname.v2i1.2025 Journal of Naval Architecture and Marine Engineering 2(1)(2005) 1-14 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/2025 10.3329/jname.v2i1.2025 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/2025/1885 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 1 (2005); 1-14 2070-8998 1813-8535 Subject The topic of the resource High speed planing craft Tunnels Resistance Extrapolation methods Pressure distribution CFD Studies Title A name given to the resource Effect of tunnel on the resistance of high-speed planing craft Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Molla, Md Mamun Rahman, Azad Rahman, Lineeya Tanzin Date A point or period of time associated with an event in the lifecycle of the resource 2009-01-19 Description An account of the resource Laminar free convection flow from an isothermal sphere immersed in a fluid with thermal conductivity proportional to linear function of temperature has been studied. The governing boundary layer equations are transformed into a non-dimensional form and the resulting nonlinear system of partial differential equations is reduced to local non-similarity equations, which are solved numerically by very efficient implicit finite difference method together with Keller box scheme. Numerical results are presented by velocity and temperature distribution of the fluid as well as heat transfer characteristics, namely the heat transfer rate and the skin-friction coefficients for a wide range of thermal conductivity parameter γ (= 0.0, 0.5, 1.0, 2.0, 3.0, 5.0) and the Prandtl number Pr (= 0.7, 1.0, 3.0, 5.0, 7.0).   Keywords: Natural convection, temperature dependent thermal conductivity, isothermal sphere.    doi:10.3329/jname.v2i2.1872  Journal of Naval Architecture and Marine Engineering 2(2005) 53-64 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1872 10.3329/jname.v2i2.1872 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1872/1775 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 2 (2005); 53-64 2070-8998 1813-8535 Subject The topic of the resource Natural convection temperature dependent thermal conductivity isothermal sphere Title A name given to the resource Natural Convection Flow from an Isothermal Sphere with Temperature Dependent Thermal Conductivity Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Sheeba, A Ganesan, V Date A point or period of time associated with an event in the lifecycle of the resource 2009-01-19 Description An account of the resource This paper presents the numerical and experimental investigation of a straight core annular diffuser normally used in marine gas turbine combustor. The flow in the annular diffuser has been simulated by solving the equations for conservation of mass and momentum. For turbulence modeling the standard k-ε model is employed and the predicted results have been validated with experiments. A five-hole probe and a single normal hot wire anemometer were used to measure mean and fluctuating components of velocity. The comparison of the experimental and predicted mean velocity values in radial direction, at different axial locations of annular diffuser is presented and discussed. Flow development in the annular diffuser with different strut geometries has been analyzed. The discussion is focused on the distortion of the flow produced by the strut configuration. Keywords: Annular Diffuser, Struts, Recirculation Region   doi:10.3329/jname.v2i2.1871  Journal of Naval Architecture and Marine Engineering 2(2005) 41-52 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1871 10.3329/jname.v2i2.1871 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1871/1774 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 2 (2005); 41-52 2070-8998 1813-8535 Subject The topic of the resource Annular Diffuser Struts Recirculation Region Title A name given to the resource Modeling of Annular Prediffuser for Marine Gas Turbine Combustor using CFD - A Study on the Effect of Strut Configuration Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Islam, M Rafiqul Hassan, Md Munir Baree, Md Sdaiqul Date A point or period of time associated with an event in the lifecycle of the resource 2009-01-19 Description An account of the resource The hydrodynamic behaviour of a fast fine vessel is of great importance than that of a fuller vessel as the fast fine vessels are engaged for important operations. Moreover with the advent of modern computers, in ship hydrodynamics, 3-D source distribution method is gaining much popularity and normally applied for blocky hull. But in the case of finer hull, examples are rare especially considering forward speed effect. With these views in mind, in the present research work, effort has been given to develop a mathematical model for fine shape vessel to predict and simulate her motions in irregular waves. A computer program has been developed on the basis of mathematical model and to examine the validity of the developed program, results for hydrodynamic coefficient and motions of a series 60 ship have been compared with Gerristma's experimental results and with the results based on other codes. After validation of the program, simulation of motions of an existing the fine shape ship has been carried out at Hiron point of the Bay of Bengal by utilizing hydrodynamic coefficients and wave exciting forces and moments obtained in regular waves and a new wave spectrum formula based on wave data at the concerned location. On the basis of the results presented, it may be concluded that the developed model based on 3-D distribution technique can be applied for prediction of motion of fine shape ship with forward speed effect. Moreover limitations of operation of the vessel have been demonstrated at various combinations of significant wave heights and speeds. doi:10.3329/jname.v2i2.1870  Journal of Naval Architecture and Marine Engineering 2(2005) 25-40 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1870 10.3329/jname.v2i2.1870 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1870/1773 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 2 (2005); 25-40 2070-8998 1813-8535 Title A name given to the resource Motion Simulation of a Fine Shaped Vessel at Hiron Point in the Bay of Bengal Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Subramanian, V Anantha Asokumar, G Mohamed, Thaju Date A point or period of time associated with an event in the lifecycle of the resource 2009-01-19 Description An account of the resource The objective of this work is to develop a non-traditional strategy for providing control of ship roll motion in a seaway using active fins. This is based on a multidisciplinary approach. It consists of the assessment of the hydrodynamic coefficients of a ship using a numerical package [SEDOS], representation of the hydrodynamic coefficients by suitable polynomial functions, identification of the time dependent fundamental frequency in the roll disturbance signal sample, generation of control signal for an appropriate fin angle based on the fin lift characteristics of the chosen fin and employment of feedback control to maintain the fin at the appropriate angle for maximum control. Once the ship based hydrodynamic coefficients are generated, the entire control algorithm is developed in the virtual instrumentation mode using LabVIEW environment. One of the disadvantages of the traditional stabilizer system is the enormous hardware involved in the controllers and instrumentation panels, which makes maintenance and troubleshooting difficult. With the help of virtual instrumentation, design of the stabilization controller and instrumentation panels can be carried out much more effectively, in comparison with the traditional hardware approach. Key words: Roll stabilization, Active fin control, Virtual instrumentation doi:10.3329/jname.v2i2.1869  Journal of Naval Architecture and Marine Engineering 2(2005) 11-24 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1869 10.3329/jname.v2i2.1869 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1869/1772 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 2 No. 2 (2005); 11-24 2070-8998 1813-8535 Subject The topic of the resource Roll stabilization Active fin control Virtual instrumentation Title A name given to the resource Virtual Instrumentation Based Active Fin Control for Roll Stabilization Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Alim, MA Rahman, MM Karim, MM Date A point or period of time associated with an event in the lifecycle of the resource 2009-02-03 Description An account of the resource The points of separation of magneto-hydrodynamic mixed convection boundary layer flow along a vertical plate have been investigated. The free stream velocity is considered decreasing exponentially in the stream wise direction. The governing boundary layer equations are transformed into a non-dimensional form and the resulting nonlinear system of partial differential equations are reduced to local non-similar boundary layer equations, which are solved numerically by implicit finite difference method known as Keller box scheme. Here we have focused our attention to find the effects of suction, magnetic field and other relevant physical parameters on the position of boundary layer separation. The numerical results are expressed in terms of local shear stress showing the effects of suction, buoyancy, Prandlt number and magnetic field on the shear stress as well as on the points of separation. Keywords: Separation points, magneto-hydrodynamic, mixed convection, boundary layer, suction, finite difference method, Keller box scheme.   doi:10.3329/jname.v5i1.1868Journal of Naval Architecture and Marine Engineering Vol. 5, No. 1 (June, 2008) 11-18.  Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1868 10.3329/jname.v5i1.1868 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1868/1859 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 5 No. 1 (2008); 11-18 2070-8998 1813-8535 Subject The topic of the resource Separation points magneto-hydrodynamic mixed convection boundary layer suction finite difference method Keller box scheme Title A name given to the resource Separation Points of Magneto-hydrodynamic Boundary Layer Flow Along a Vertical Plate with Exponentially Decreasing Free Stream Velocity Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Manoj, MK Galgali, RK Nath, SK Ray, S Date A point or period of time associated with an event in the lifecycle of the resource 2009-02-03 Description An account of the resource Fe-TiC composites containing varying amounts of TiC particles have been synthesized by casting route. This is achieved by carbothermic reduction of ilmenite ore along with varying amount of steel scrap in a plasma reactor in one step. Three composites containing TiC particles varying from 4 to 9% have been prepared. Microstructures of composites show TiC particles in the matrix of transformed ledeburite (pearlite and cementite). Distribution of TiC particles has been found to be satisfactorily uniform and size varies from 2 to 3 microns. Composite having 9 vol% has shown non-uniform distribution of TiC particles and size variation from 2 to 8 microns. In 9% TiC composites, graphite flakes have also been found. It has also been observed that composite having TiC content greater than 9 % becomes very difficult to cast because of higher viscosity of the melt during pouring. These composites have been characterized by hardness measurement, optical microscopy, FESEM, and XRD. Hardness of these composites has been found to depend on vol.% of TiC and on the nature of the matrix. Slurry erosion test has shown higher erosion resistance in castings with lesser porosity, optimum vol% of TiC, and in the matrix of transformed ledeburite. Presence of graphite in the matrix lowers slurry erosion resistance of the cast composite. Keywords: Fe-TiC composite, Carbothermic reduction, Graphite, Slurry wear.    doi:10.3329/jname.v5i1.1825 Journal of Naval Architecture and Marine Engineering Vol. 5, No. 1 (June, 2008) 19-26. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1825 10.3329/jname.v5i1.1825 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1825/1860 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 5 No. 1 (2008); 19-26 2070-8998 1813-8535 Subject The topic of the resource Fe-TiC composite Carbothermic reduction Graphite Slurry wear Title A name given to the resource Synthesis, characterization and effect of microstructure on slurry erosion resistance of cast Fe-TiC composites Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Journal of Naval Architecture and Marine Engineering Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Ambethkar, V Date A point or period of time associated with an event in the lifecycle of the resource 2009-02-03 Description An account of the resource The objective of this work is to study heat and mass transfer in an unsteady MHD free convective flow past an infinite vertical plate with constant suction numerically.  Dimensionless governing equations of the problem have been solved by using finite difference technique. Numerical solutions for temperature, velocity, concentration have been obtained for suitable parameters like Grashoff number, mass Grashoff number, Prandtl number and Schmidt number. Rate of heat transfer and mass transfer are studied. The results obtained are discussed with the help of graphs and tables to observe effect of various parameters concerned in the problem under investigation. Stability and convergence of the finite difference scheme is established. Key words: MHD, unsteady, constant suction, finite difference technique, Heat and mass transfer. doi:10.3329/jname.v5i1.1785 Journal of Naval Architecture and Marine Engineering Vol. 5, No. 1 (June, 2008) 27-36 Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://www.banglajol.info/index.php/JNAME/article/view/1785 10.3329/jname.v5i1.1785 Language A language of the resource eng Publisher An entity responsible for making the resource available Association of Naval Architects and Marine Engineers Relation A related resource https://www.banglajol.info/index.php/JNAME/article/view/1785/1861 Source A related resource from which the described resource is derived Journal of Naval Architecture and Marine Engineering; Vol. 5 No. 1 (2008); 27-36 2070-8998 1813-8535 Subject The topic of the resource MHD unsteady constant suction finite difference technique Heat and mass transfer Title A name given to the resource Numerical Solutions of Heat and Mass Transfer Effects of an Unsteady MHD Free Convective Flow past an Infinite Vertical Plate with Constant Suction Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion