Reynolds averaged Navier Stokes

This report will answer the question of what is Reynolds stress, turbulent viscosity, and molecular viscosity while deriving Reynolds averaged Navier stokes equation by applying Reynolds decomposition to Navier stokes equation.   Reynolds decomposition Consider a sensor measuring velocity in turbulent flow the plot…

% inputs % drag coefficient for different shape % sphere -0.47 % hemesphere -0.42 % cone -0.5 % cube -1.05 %angled cube -0.8 %streamlined body -0.04 C_d = [0.47 0.42 0.5 1.05 0.8 0.04]; rho = 1.225; V = 5; A = 2; % drag force calculation drag_force = C_d*0.5*rho*V^2*A; %ploting graph between drag force and drag coefficient…

%row vector  a = 1:5; %column vector b = rand(3,1);

https://projects.skill-lync.com/projects/calculation-of-drag-force-and-plotting-graphs-bw-drag-force-and-velocity-35952https://projects.skill-lync.com/projects/relation-between-drag-force-and-drag-coefficient-73042

% inputs C_d = 0.8; rho = 1.225; V = [1:5]; A = 2; % drag force calculation drag_force = C_d*0.5*rho*V.^2*A; %ploting graph between drag force and velocity plot(V,drag_force)

https://projects.skill-lync.com/projects/calculation-of-drag-force-and-plotting-graphs-bw-drag-force-and-velocity-35952https://projects.skill-lync.com/projects/relation-between-drag-force-and-drag-coefficient-73042

Introduction This project aims to simulate a shock tube problem to enhance our understanding of regions and how events function is used for timing an event such as opening and closing the interaction between regions.  Case Setup Transient simulation with species Oxygen and Nitrogen is made to run from 0 seconds to…

Objective  This project aims to develop an understanding of super-cycle using a conjugate heat transfer simulation model. moreover, it will expand our knowledge on the grid dependency test and y+ method of checking the grid for wall functions.   Simulation setup A pipe of diameter 0.03 m and a length of 0.2 m…

Introduction In this project we will simulate a Prandtl Meyer expansion flow and take a deeper look at boundary conditions. we will try to answer the question of what boundary conditions are used in a shock flow problem and why? what is a shock wave? and we will look at the effect of SGS temperature value on cell count…

Introduction The objective of this report is to understand the flow over a throttle valve and to practice the mesh refinement using converge tool, also, learning how to give motion to a body and to read the output plots. Mesh Below is the mesh for the throttle body. The mesh is refined around the the valve by the use of…

Introduction The objective of this report is to understand the flow over a throttle valve and to practice the mesh refinement using converge tool, also, learning how to give motion to a body.  Mesh Below is the mesh for the throttle body. The mesh is refined around the the valve by the use of fixed embedding tool…

Flow Over A Backward Facing Step Introduction The purpose of this report is to understand flow over a backward facing step using converge CFD tool. a case set up is produced in converge with a step height of 9.98 mm, when the turbulent flow encounters a abrupt backward step the flow separates and reattach after some time.…