Week 11 - Simulation of Flow through a pipe in OpenFoam

OBJECTIVE  To simulate the isentropic flow through a crazy wonder subsonic and supersonic nozzle using both conservation and on conservation forms of governing equation and solve them using the Micromax technique and compare their solution   We consider the study fashion traffic flow through a convergent divergent…

                                                                 Converging diverging nozzle   consider the converging-diverging nozzle below with the…

                                                                        CFD meshing on Turbocharger   Aim: For the given model, check…

                                                                             Surface meshing on a Pressure valve   Aim: …

                                                                        Simulating Combustion of Natural GasAIM:Perform a combustion simulation on the combustor model and plot the variation of the mass fraction of the different species’ in the simulation using line probes at different locations of the combustor as shown…

                                                            Simulating Cyclone separator with Discrete Phase Modelling   Aim:- To perform analysis on cyclone separator…

                                                            Parametric study on Gate valve   AIM:  For this challenge, you will have to perform a parametric…

                                                                                 CHT Analysis on a Graphics card  …

                                                                           Rayleigh Taylor Instability   What are some practical…

                                                            CHT Analysis on Exhaust port   Objectives:    Give a brief description of why and where a…

                                                       External flow simulation over an Ahmed body    Obejective :  Describe Ahmed's body and its importance.  Explain…

 AIM : Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street.    Case 1 :  Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds number to 10,100,1000,10000 & 100000. (Run with steady solver) Discuss the effect of Reynolds number…

Case 1  Short mixing tee with a hot inlet velocity of 3m/s. Momentum ratio of 2, 4.  Case 2  Long mixing tee with a hot inlet velocity of 3m/s. Momentum ratio of 2, 4. Momentum ratio = velocity at cold inlet / velocity at hot inlet In a table, compare the following values from the 2 cases.  Cell count Average outlet temperature…

Aim: The major objective of this project was to set up Transient Simulation in a Shock Tube using Converge CFD. A shock tube that has a diaphragm in between and the tube is one side filled with high-pressure Nitrogen where the other side is filled with low-pressure Oxygen. Setup a transient shock tube simulation Plot the…

AIM To create a ahmed body model, along with the virtual wind tunnel and run a external aerodynamics simulation. To post-process the result obtained from simulation and plot velocity along vertical direction at different points in the flow path: To calculate the drag coefficient. Objective: To simulate flow around an Ahmed…

AIM : Simulate flow over a 4 digit airfoil i.e NACA 2412 Airfoil. OBJECTIVE : We will have to calculate the following, Drag co-efficient Vs Angle of Attack Lift co-efficient vs Angle of Attack Compare the effect of turbulence models on the above two results. Make sure that the inlet Reynolds number is 200,000 Make…

AIM :  Apply reynold's decomposition to the NS equations and come up with the expression for reynold's stress. Explain your understanding of the terms reynold's stress What is turbulent viscosity? How is it different from molecular viscosity Let us know what is Reynold's decomposition In fluid dynamics and turbulence theory, Reynolds…

Conjugate Heat Transfer Simulation   AIM: To perform Conjugate Heat Transfer flow simulation through a pipe using Converge CFD and post process the results using Paraview. OBJECTIVE: Setup a flow simulation through a pipe Inner diameter 0.02mm Outer diameter 0.015mm. Inlet Reynolds number should be 7,000 Use the below…

Prandtl Meyer Shock Problem OBJECTIVE What is a Shock Wave?  It is a very thin region in a flow which gets created when the velocity of flow exceeds or equals to the speed of sound which we refer as a Mach number, Hence it occurs in a supersonic and hypersonic flow  In this region of the shock wave the gas properties…

TRANSIENT SIMULATION OF A FLOW OVER A THROTTLE BODY   Introduction: A throttle is the mechanism by which fluid flow is managed by constriction or obstruction.  An engine's power can be increased or decreased by the restriction of inlet gases (by the use of a throttle). The term throttle has come to refer, informally,…

Steady state simulation of flow over a throttle body   Import the STL file to covnerge make a dignosis test if any error clear it make a case set up  Remove the fence  of the boundry   and patch using repair tool Simulation Time Parameters: Start Time:0 Cycle End Time:15000 cycles Boundary Conditions:…

 We have the base setup ready, run the case for three different base mesh sizes dx = dy = dz =2e-3 m dx = dy = dz =1.5e-3 m dx = dy = dz =1.0e-3 m (If this is too much for your PC, use 1.2e-3 m) OBJECTIVE: Simulate Flow of fluid over a throttle body with completely open valve in converge studio and post process the…

OBEJECTIVE  For this challenge, we will be setting up a channel flow tutorial. 2. As you watch these videos, setup the case in CONVERGE 3. Make sure the inlet pressure and initial pressure are the same.  4. Once you have the base setup ready, run the case for three different base mesh sizes i.e You need to run…

n this challenge,we will simulate an axi-symmetric flow by applying the wedge boundary condition. The flow is laminar and flows through a constant cross-section pipe at an inlet Reynold's number of 2100. we can do a transient or steady state simulation and you will validate your results with the Hagen- Poiseuille's equations…

In this challenge,we will simulate an axi-symmetric flow by applying the wedge boundary condition. The flow is laminar and flows through a constant cross-section pipe at an inlet Reynold's number of 2100. we can do a transient or steady state simulation and you will validate your results with the Hagen- Poiseuille's equations…

In this challenge, we are going to simulate an incompressible-laminar-viscous flow through the backward facing step geometry. we should perform a transient simulation. The solver can be chosen based on the described physics of the flow. we need to explain the entire simulation procedure (how you set up the case). we should…

What is Finite Volume Method(FVM) ? A finite volume method (FVM) discretization is based upon an integral form of the PDE to be solved (e.g. conservation of mass, momentum, or energy). The PDE is written in a form which can be solved for a given finite volume (or cell). The computational domain is discretized into finite…

 Steady state analysis & Transient State Analysis   we will implement the following methods for solving implicit equations.  Jacobi  Gauss-seidel  Successive over-relaxation     Steady and unsteady states Steady state : In this fluid state in which there is no change in with…

AIM:   4th order approximations of the second-order derivative.  1. Central difference 2. Skewed right-sided difference 3. Skewed left-sided difference   Skewed right hand difference scheam Number of nodes N=P+Q       P=oredr of derivative              …