Abstract: This report describes the results of a parametric study undertaken to observe the changes in mass flow rate on the outlet of the gate valve during the different lift of the gate disc. Introduction: Gate valve is a flow control device used to regulate the fluid flow in a pipe. By lifting the disc, the area of…

Abstract: This study deals with the simulation of non-premixed combustion of methane taking place in a cylindrical combustion chamber to compare the evolution of the mass fraction of different species involved in the combustion process. The 3D problem was approximated to a 2D axisymmetric problem in order to reduce the…

Abstract: The accuracy of the numerical simulation results depends on the resolution of the mesh grid and it can be increased by reducing the mesh size. This report utilizes the external flow around a model of the Ahmed body to investigate the grid dependence phenomenon. Three cases were simulated with different mesh sizes…

Introduction: Through the simulation of laminar flow over a cylinder, the phenomenon of ‘von Karman vortex street’.  It is a physical process where a repeating pattern of swirling vortices are caused due to vortex shedding. It responsible for the unsteady separation of flow of a fluid around blunt bodies.…

Abstract: An analysis of heat transfer in an exhaust manifold is performed in ANSYS to estimate the regions of maximum heat transfer. The heat is transferred from the hot air to the solid pipe carrying it. Through simulation with appropriate boundary conditions, the regions of maximum heat transfer in the geometry were…

Introduction: The Rayleigh Taylor (RT) instability is a classical hydrodynamic instability and it plays an important role in many natural scenarios and industrial applications. It is one of the principal causes for fluid mixing induced by unstable stratification. The RT instability occurs when a light fluid accelerates…

Abstract: A numerical simulation was undertaken to determine the overall efficiency of the given cyclone separator in ANSYS Fluent. The inlet conditions varied by changing the number of particles injected at the inlet and the overall efficiency in each case was determined. The flow inside the cyclone separator was modeled…

Introduction: The need for miniaturization and increased performance of the electronics components has contributed to the increased power consumption and heat generation within the system and an innovative cooling system is required to remove the heat which helps in achieving higher performance and a better life for the…

Introduction: In fluid dynamics, slosh refers to the movement of the free surface of the liquid inside another object which is undergoing motion. Important examples include propellent slosh in spacecraft, ships, and trucks transporting liquids. A similar effect is observed in a gearbox. Inside a gearbox, the gears are…

Abstract: A numerical investigation is carried out to compare the effectiveness of mixing of hot air stream with a cold air stream in a mixing tee using ANSYS Fluent. A steady-state simulation is performed for cases with different outlet length and different momentum ratio. The effectiveness of mixing is measured by observing…

Abstract: The development of electric vehicles has led to increased attention in the thermal management of Li-ion batteries. In this report, the liquid cooling system of a standard battery module is simulated including the cooling plates using an open-source numerical tool, OpenFOAM. The results of the simulation are validated…

Fourth order approximation of second order derivative Aim: To derive fourth-order accurate scheme of second-order derivative using Finite Difference Method (FDM) and program the same in MATLAB. Three different stencils–Central-difference, skewed-left and skewed-right differencing scheme–were used in this project…

Numerical Solution of 2D Heat Conduction Equation   Objective The primary objective of this project is to solve both the steady and the transient 2D Heat Conduction using Finite Difference Method on a rectangular domain. The transient equation was solved using implicit and explicit methods. Iterative solvers were…

Simulation of subsonic-supersonic isentropic nozzle flow using MacCormack’s Method Aim: To determine the difference between the conservative and non-conservative form of the governing equation in a CFD methodology. The objective was achieved by simulating a quasi 1D subsonic-supersonic isentropic nozzle flow using…

Simulation of backwards-facing step in OpenFOAM Aim: To simulate a transient incompressible laminar flow through a backward-facing step geometry using OpenFOAM Objectives: The backward-facing step problem is a well-known academic problem for studying the internal flows. The main objective of solving this problem is to…

Finite Volume Method Objective: To understand the Finite Volume Method and the significance of interpolation schemes as well as the flux limiters. This report is divided into the following sections Finite Volume Method introduction Interpolation schemes Flux Limiters Finite Volume Method – an Introduction The popularity…

Simulation of axisymmetric flow using OpenFOAM Objective: The aim of this project is to simulate the flow of water through a pipe and validate the results of the fully developed flow with analytical solutions. Introduction: The internal flow through the pipe is an axisymmetric problem. Hence the simulation is simplified…

Symmetry Vs Wedge BC for a pipe-flow simulation in OpenFOAM Objective: The main aim of this project is to compare the results obtained by using symmetry and wedge Boundary condition (BC) for simulating the pipe-flow problem in OpenFOAM with analytical solution. The simulation was performed for 3 different wedge angles…

Exploring the GUI of GT Power Aim: To explore the GUI of GT-Suite and understand different settings available to run a simulation. Setup and run a simulation for Charge air cooler (CAC) Introduction: GT-Suite is the industry-leading simulation tool with capabilities and libraries aimed at a wide variety of applications and industries.…

Calibration of SI Engine Aim: The main objective of this project is to set up and run a model of a single cylinder 4-stroke SI Engine at 1800 rpm in GT-Suite To run the same model at 3600 rpm and increase the power-output by 10% Introduction: The Spark-ignition (SI) engine is an internal combustion engine, where the air-fuel…

Basic Calibration of Single Cylinder CI Engine   Aim: To compare the differences in developing a single-cylinder SI and CI engine model in GT-Suite and determine the influence of the MFB parameter on the CI engine performance. Introduction: The Spark Ignition (SI) and the Compression Ignition (CI) engines were developed…

Modelling of Turbocharger in GT-Power Aim To analyse the models of different types of turbochargers using GT-Power Introduction: Methods of Power Boosting: The maximum power a given engine can deliver is limited by the amount of air introduced into each cylinder during each cycle. If the induced air is compressed to a…

Understanding and creating a Fast running model in GT-Suite Aim: To build a Fast-Running Model in GT-Power Introduction: Fast Running Models are dynamic, fully-physical engine models that are designed specifically to run fast. While high-fidelity engine models are commonplace in the engine performance department, they…

Discretization of Intake Manifold using GEM-3D Objective: This study is divided into 2 parts. In the first part, the influence of the discretization length on the simulation is evaluated. In the second part, a 3D CAD model of an intake manifold is converted into 1D model using the graphical application software, GEM 3D…