An OCTAVE program that solves the differential equation governing the motion of a simple pendulum with damping and animates the path of the bob. Background study :  A simple pendulum consists of a bob(sphere) tied to a massless string/rod (mass of the string/rod is negligible compared to the mass of the bob, Mb >>>Mt),…

                                                                                  Optimization using the Genetic Algorithm(GA)…

Aim : To parse the "THERMO.dat" file for extracting the coefficients which can be used to calculate the Thermodynamic properties - Specific Heat(Cp), Enthalpy(H) and Entropy(s).   Here is a snip of the contents of the ''THERMO.dat" file:                      …

Taylor Table Method Aim : To compute the fourth order approximation of the second derivative in the central,right and left schemes using the Taylor Table method. Theory : The taylor table method is used to find the schemes with the desired accuracy and for the stencil that we choose. The taylor table method is based on…

Aim :  Solving the steady and unsteady 2D heat conduction equation. Objectives :  1. To use the Jacobian, Gauss Seidel and Successive Order Relaxation iterative techniques to the steady state 2D heat                       heat conduction equation  …

BlockMesh Drilldown challenge  - Simulation of transient incompressible-laminar-viscous flow through the backward facing step geometry  Aim : To setup the case to simulate the transient incompressible-laminar-viscous flow through the backward facing step in OpenFOAM. Objectives : 1. Explain the creration…

The Finite volume method : Need for the finite volume method : The finite difference schemes are limited in their ability to compute the property value when the geometry is irregular. An irregular geometry when meshed, has the irregular shaped individual elements. Calculation of the property value at the nodes becomes…

Simulation of 1D Subsonic-Supersonic Nozzle flow using Macormack method : Aim : To perform a simulation on a C-D nozzle using macormack tecnique by solving the governing equations in both the non-conservative and conservative form and compare the results.  Objectives : Compare the results obtained for the non-conservation…

Simulation of Laminar Viscous flow through a pipe in OpenFOAM Aim : To simulate the Laminar Vicous flow through a pipe in OpenFOAM for a sector(wedge angle `theta` < `5^0`) of pipe. Objectives : To generate a blockMeshDict file using MATLAB that can simulate a pipeflow for given wedge angle. Compare the CFD results with…

Pipe flow simulation in OpenFOAM - Wedge vs Symmetry vs HP equation. Aim : To simulate the flow of water in a pipe for the symmetry conditions for three wedge angles - 10, 25 and 45. Objectives : 1. To understand the symmetry boundary condition                     …

Steady Vs Unsteady flow over a cylinder  Objectives : 1. To simulate the flow over a cylinder in steady state for Reynolds number (Re) ranging from 10 - 1,00,000.                     2. To simulate the flow over a cylinder for transient condition at Re 100 and…

Simulation of flow over Ahmed body  Aim :  To simulate the flow over Ahmed body and determine the Coeffiecient of drag for a velocity of 25 m/s. Objective(s) : 1. To perform a grid independence test for the simulation.                        2. Plot…

Conjugate Heat transfer (CHT) analysis on exhaust port Aim : To perform a CFD simulation on an exhaust port and determine the Surface heat transfer coefficient on the internal solid surface of the exhaust port. Objective(s) : 1. Provide a reson for the higher magnitude of surface heat transfer coefficient near to the wall.…

CHT analysis on a Graphic card :   Aim : To perform a Steady state Conjugate Heat transfer analysis on a Graphics card and report the simulation results. Objectives :                 1. To setup a conjugate heat transfer analysis case in ANSYS FLUENT.        …

Rayleigh Taylor instability Aim: To visualize the interface of the Water and Air using the Volume of Fluid method in ANSYS FLUENT.  Objectives: 1. Understand the Rayleigh Taylor instability and Atwood number(A). 2. Understand in detail about the Volume of fluid(VOF) method and its applications.  2. Explain…

Simulating Cyclone separator with Discrete Phase Modelling Aim:- To perform analysis on cyclone separator and calculate the separation efficiency and pressure drop.   Objective(s):- To write a few words about any four empirical models used to calculate the cyclone separator efficiency.  To perform an…

Simulation of combustion of the natural gas   Aim : To simulate the combustion of natural gas and plot for CO2, H2O, CH4, N2, O2, NOx emissions & Soot formation at the outlet.   Objectives : 1. Use the appropriate boundary conditions and combustion models related to combustion.      …

Parametric study on a Gate Valve : Aim : To analyze the mass flow rate through the outlet of a Gate valve for different valve openings by parameterizing the valve opening.  Objectives : 1. To parameterize the quantity "valve opening".                   2. Using the…