Week 7 - Simulation of a 1D Super-sonic nozzle flow simulation using Macormack Method

WEEK 6 – CHT ANALYSIS ON A GRAPHICS CARD   OBJECTIVES:  Perform a steady-state conjugated heat transfer analysis on a model of a graphics card. Select the appropriate materials for the simulation. Mesh the geometry with a desirable combination and Explain the mesh setting used on this model. Simulate by…

RAYLEIGH TAYLOR INSTABILITY   OBJECTIVES: Some practical CFD models have been based on the mathematical analysis of Rayleigh Taylor waves. And also explain how these mathematical models have been adapted for CFD calculations. Perform the Rayleigh Taylor instability simulation for 2 different mesh sizes with the base…

CONJUGATE HEAT TRANSFER (CHT) ANALYSIS ON EXHAUST PORT AIM: To perform the steady-state conjugate heat transfer simulation on the exhaust port when the air enters at the inlets at a speed of 5m/s and at a temperature of 700K. OBJECTIVE: Give a brief description of why and where a CHT analysis is used. Maintain the y+ value…

EXTERNAL FLOW SIMULATION OVER AN AHMED BODY   OBJECTIVE:  To determine the aerodynamic forces on the Ahmed body such as drag and lift coefficient and to perform the grid independence test. The expected results are, 1. Velocity and pressure contours.  2. The drag coefficient plot for a refined case. ( For…

MIXING TEE   OBJECTIVE: For this challenge, we have created two versions of the mixing tee. One of them is longer than the other. Our job is to set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 360C & the Cold inlet is at 190C.  Use the k-epsilon and k-omega…

VALIDATION STUDIES OF SYMMETRY BC VS WEDGE BC IN OpenFOAM VS ANALYTICAL H.P. EQUATION   ABSTRACT: The flow through a pipe is the case of internal flow. Their major application is in the refrigeration and air conditioning industries. The fluid velocity is zero at the walls and maximum at the center. In fluid flow,…

SIMULATION OF FLOW THROUGH A PIPE IN OPENFOAM   ABSTRACT: The flow through a pipe is the case of internal flow. Their major application is in the refrigeration and air conditioning industries. The fluid velocity is zero at the walls and maximum at the center. In fluid flow, it is preferred to take average velocity…

FVM LITERATURE REVIEW   In computational fluid dynamics, the three classical choices for the numerical solution of PDEs are, 1. Finite difference method (FDM) 2. Finite element method (FEM) 3. Finite volume method (FVM)   finite difference method (FDM): The FDM is the oldest and is based upon applying a…

SIMULATION OF A BACKWARD FACING STEP IN OpenFOAM   AIM: Simulate an incompressible-laminar-viscous flow through the backward-facing step geometry. Perform transient simulation; choose solver based on the described flow physics in the problem statement. Explain the simulation process and way of setting up the problem…

SIMULATION OF A 1D SUPER-SONIC NOZZLE FLOW SIMULATION USING THE MACORMACK METHOD   OBJECTIVE:  To simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle and to derive both the conservation and non-conservation forms of the governing equations and solve them using MacCormack's technique. Also,…

SOLVING THE STEADY AND UNSTEADY 2D HEAT CONDUCTION PROBLEM   OBJECTIVE:   To perform Steady-state analysis & Transient State Analysis and solve the 2D heat conduction equation using the iterative point technique.    The Boundary conditions are as follows;     Top Boundary = 600 K  …

DERIVING 4TH ORDER APPROXIMATION OF A 2ND ORDER DERIVATIVE USING THE TAYLOR TABLE METHOD AIM:  To derive the fourth-order approximation of a second-order derivative using 1) central differencing scheme 2) Skewed right-sided difference scheme 3) Skewed left-sided difference  scheme, with the help of…

Objective:  To simulate the motion of a simple pendulum by using the given 2nd order ODE and to create the animation of its motion by using a MATLAB code. Theory:  ODE: Ordinary Differential Equation, is a differential equation containing one or more functions of one independent variable and the derivatives…

Aim:  To write code to fit a linear and cubic polynomial for the Cp data.   To plot the linear and cubic fit curves along with the raw data points. Title and axes labels are a must, legends could be shown if necessary.  To write a code to show splitwise method.  To explain the parameters used(Goodness…

Parsing NASA thermodynamic data INTRODUCTION:  Parsing a data means to break it down into component parts so that its syntax can be analyzed, categorized, and understood. Pharsing makes reading of data in a file easier. Here we are parsing the thermodynamics data of NASA for 53 different species and also calculating…

  Objective: To optimise the stalagmite function and find the global maxima of the function by using genetic algorithm. Theory : Stalagmite: Stalagmite mathematical model helps to generate local maximas and minimas. Genetic Algorithm :  Genetic Algorithm is based upon evolution theory proposed by Charles…