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Showing posts from December, 2021

Conjugate Heat Transfer Analysis of Shell and Tube Heat Exchanger

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  Problem Statement: It is an analysis of a Counterflow Heat exchanger, to cool the engine oil for a large industrial gas turbine engine.  The water and oil enter the outer annulus and inner tube respectively.  CFD Computational Fluid Dynamics (CFD) is the process of mathematically modelling a physical phenomenon involving fluid flow and solving it numerically using the computational process. In a CFD software analysis, the examination of fluid flow by its physical properties such as velocity, pressure, temperature, density and viscosity is conducted. To virtually generate an accurate solution for a physical phenomenon associated with fluid flow, those properties have to be considered simultaneously. A mathematical model of the physical case and a numerical method are used in a CFD software tool to analyze the fluid flow. For instance, the Navier-Stokes (N-S) equations are specified as the mathematical model of the physical case. This describes changes in all those physic...

Conjugate heat transfer in a rectangular channel with protrusions

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Problem Statement: There is a conjugate heat transfer in a rectangular channel, in which there are some rectangular protrusions aligned at an angle of 45 degrees to the flow velocity. Water enter at some velocity at a constant temperature, also there is a constant heat flux from the heater wall. Find out the nusselt number and skin friction coefficient on the heater surface. CFD: Computational Fluid Dynamics (CFD) is the process of mathematically modelling a physical phenomenon involving fluid flow and solving it numerically using the computational process. A CFD software analysis examines fluid flow by its physical properties such as velocity, pressure, temperature, density, and viscosity. Those properties must be considered simultaneously to generate an accurate solution for a physical phenomenon associated with fluid flow.  A mathematical model of the physical case and a numerical method are used in a CFD software tool to analyze the fluid flow. For instance, the Navier-Stokes (...

Fluid flow in a constricted passage

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  Problem Statement: There is a fluid flow in a pipe, the pipe cross-section is uniform and gets decreased. This decrease in cross-section causes flow constriction. Due to this, there is a variation in velocity, which has been analyzed. The possibility of a wake region near the outlet has also been found out. CFD: Computational Fluid Dynamics (CFD) is the process of mathematically modelling a physical phenomenon involving fluid flow and solving it numerically using the computational process. A CFD software analysis examines fluid flow by its physical properties such as velocity, pressure, temperature, density, and viscosity. Those properties must be considered simultaneously to generate an accurate solution for a physical phenomenon associated with fluid flow.  A mathematical model of the physical case and a numerical method are used in a CFD software tool to analyze the fluid flow. For instance, the Navier-Stokes (N-S) equations are specified as the mathematical model of the ...

Filling tank with water

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  Problem Statement: A 3D tank is filled with liquid water ( multiphase flow [air-water] ). CFD: Computational Fluid Dynamics (CFD) is the process of mathematically modelling a physical phenomenon involving fluid flow and solving it numerically using the computational process. In a CFD software analysis, the examination of fluid flow by its physical properties such as velocity, pressure, temperature, density, and viscosity. To generate an accurate solution for a physical phenomenon associated with fluid flow, those properties must be considered simultaneously.  A mathematical model of the physical case and a numerical method are used in a CFD software tool to analyze the fluid flow. For instance, the Navier-Stokes (N-S) equations are specified as the mathematical model of the physical case. This describes changes in all those physical properties for both fluid flow and heat transfer. A mathematical model varies by the content of the problem such as heat transfer, mass transfer...