Week 5 - Turbulence modelling challenge

Aim: To develop surface mesh over the surface of the given Tesla Cyber Truck model.   Objective: To check for geomentrical errors in the given model and eliminate if any the assign PIDs and generate surface mesh over selected PIDs with different target length. The model is the verified using quality criteria.  …

Aim : To do surface wrapping over the given model.   Objective: The given model should not have ant single CONS on the outer surface. The Surface wrapping should be done to all the component after merging with the element length of 3 mm.   Surface Wrapping:  It is a type of meshing done only on the surface…

  Aim: To generate surface mesh over the given BMW M6 model.   Objective: The given model should be cleaned up and different mesh parts should be meshed as per mentioned element size. The entire model should be enclosed inside the enclosure and be considered as wind tunnel.     Wind Tunnel : Wind tunnels are…

 Aim: To generate surface and volume mesh for the given turbocharger.   Objective: To generate the tetra mesh over PID's, with different mesh element size. And to generate volume mesh inside the defined watertight geomentry.   Introduction:  A turbocharger is a device fitted to a vehicle’s engine…

Aim : To do geomentry cleanup and generate the surface mesh over the given pressure valve. Objective: To identift the single CONS and eliminate them. And generate mesh of tria elements with 1 mm, 3 mm, and 5 mm as the target length.   Introduction : A pressure relief valve is a type of safty wall  used to control and maintain…

Aim : To simulate for the given ahmed body and study the acoustic field around it. Objective : Describe Ahmed's body and its importance. Setup the domain and setup assuming body is travelling at 110 kmph Run the setup till convergence and plot for static pressure and coefficient of drag and lift to check for convergence…

Aim : To simulate the given turbomachine model using moving zone approach. Objective : To obtain velocity and pressure plots for the given model using moving reference frame and moving mesh approaches. And compare the results. Procedure : The given mesh geomentry model is imported to the fluent setup, since the entire…

Aim: To Simulate for the given model using reference frame method and study the obtained results. Objective: Types of approaches used to model for moving zones. Explain the approachused to model for an unsteady phenomena. Simulate rotary motion for the geometry given. Plot the velocity profile of the fluid motion.  …

Aim: To perform a 3-D Turbulant simulation on the given model. And to understand the various turbualnce models present. Objective: To simulate for the given flow conditions for the golf ball and visuvalize and analyse the wake region around it. To understand and explain the various turbulance model available.   Introduction:…

Aim: To simulate for the given pitot tube model and obtain necessary results. Objective: To calculate the static and total pressure for the given velocity and gauge pressure. And compare the therotical and anylitical results and calculate the error.   Introduction: Pitot Tube: A pitot tube measures fluid…

 Aim: To simulate air through  a CD-Nozzel and observe the the change in Velocity,Pressure ,Temperature and Mach number.   Introduction: Nozzle is a relatively simple device, just a specially shaped tube through which hot gases flow. Ramjets and rockets typically use a fixed convergent section followed by…

Aim: To perform a combustion simulation on a given Combuster model and calculate the msss fraction of different species involved combustion. Objective: By doing this simulation we find the different chemical reactions involved in an combustion process. We calculate the masss fraction of each species(element) involved in…

Aim: To perform a parametric study on the gate valve simulation.   Objective: By setting the opening to between 10 % - 80 %  and performing the parametric study on the gate valve simulation we study for the following results, Obtain the mass flow rates at the outlet for each design point. Calculate the flow coefficient…

Aim: To perform analysis on cyclone seperator and calculate the seperation efficiency and pressure drop. Objective: Our objective is to simulate for the given cyclone simulator model with anthrecine suspended particle in air medium. We simulate for the given fluid by varying the velocity from 1 m/s to 5 m/ and keeping…

Aim: To Perform a steady state conjugate heat transfer model on a GPU. And find maximum teperature and heat transfer coefficient of the processor. Objective: To run the simulation for three velocities 1 m/s,2.5 m/s ,and 5m/s and discuss the results. To find the maximum temperature and Heat Transfer Coefficient attained…

Introduction: Rayleigh Taylor instablity is an instablity occurs on the interface of two fluids of different density and occurs when the lighter fluid exerts force on the denser fluid. Both the fluid are under influence of gravity and there exist and equllibrium across the interface of the fluid and any disturbuance to…

Aim: To do a Conjucate Heat Transfer analysis of an exhaust port. We then find the heat transfer Co-Efficient along the walls of the outlet. Introduction : Conjugate Heat Transfer or CHT is a type of heat transfer analysis between solid and fluid,the type of heat transfer can be convection , conduction or both. This process…

Aim: To expriment Aerodynamic property of an Ahmed Body with default properties of air. To compute the drag co-efficient and visulize the wake region under different conditions. Introduction: In this problem setup we are using the ahmed body and analyse the results simulated under different mesh refinement. The below mentioned…

  Introduction:  Our aim is to simulate for a flow over a cylinder of darius 1m with air as the working fluid. With this model we will be simulating for different reynolds number ,thus changing the inlet velocity. From the results obtained we will be able to visualize the vortex shreding. Theory: Vortex shedding…

Aim: In this part we find the resultant temperature and velocity in a pipe where we mix air at two different temperatures. Theory and Inputs: Since the two inlets and an outlet makes the shape of 'T' we call this setup as Mixing tee. We choose air as the working fluid at parallel and perpendicular  inlets with temperature …

  Theory   In this Project we are ccomparing the velocity,pressure drop and shear stress for two different boundary condition types wedge and symmentry and also simulating them for different angles(`theta`). By this way we are finding how the results are affacted and compare the theoratical and simulation…

 Our objective is to simulate a flow through a pipe. The governing equation for this will be Hagen-Poiseullie equation, and the assumptions made are , Steady Incompressible Laminar Flow 2-Dimentinal flow  Fluid properties are constant along the length of the pipe Axisymetric flow Then we computing the results…

    FDM: In Finite Difference Method discritization is based on differential form of the PDE. The domain is divided into hexagonal cells and the solution will be obtained at each node points. And we finally get a system of equations of variables at nodal points.And once solved we have discrite solution. FEM:…

In this following problem we are dealing with an Incompressible Laminar-Viscous flow inside a domine. Incompressible flow:  A flow in which density remains constant throughout. Laminar : A flow in which the fluid particals travels smoothly over each other (ie.Re<2300). And there is less friction between the flow…

  The numerical solution of isentropic flow of a quasi 1-D subsonic - supersonic nozzel does not have any meaning. Instead of representaing the analytical solution in an approximated form we try to use CFD in various streams. In this case we apply CFD for a numerical solution with conservative and non-conservative…

  The heat conduction is re[resented as a partial differentiation equation that shows the heat progression over time.The 2-D heat conduction equation is given by , `(delT)/(delt) +alpha ((del^2T)/(delx^2) +(del^2T)/(dely^2)) =0` where '`alpha`' is Thermal diffusivative term. The time derivative term '`(delT)/(delt)`'…

For each type of difference method we have to find the No.of nodes in a stencil to form an equation. from hint we get that two equations. P=N-Q+1  P=N-Q 1) Central Difference: P= order of approximation N= No.of nodes in stencil Q= order of derivative here P is 4 since we require 4th order derivative and Q is 2 since…