Week 2 - Flow over a Cylinder.

AIM : Perform a combustion simulation of natural gas, on the combustor model. OBJECTIVES : To perform a combustion simulation on the combustor model and plot the variation of mass fraction of different species in the simulation using line probes at different locations of the combustor.…

Aim: To perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.  Objectives: Obtain the mass flow rates at the outlet for each design point. Calculate the flow coefficient and flow factor for each opening and plot the graph. Discuss the results of the mass flow rate and…

Aim:- To perform analysis on cyclone separator and calculate the separation efficiency and pressure drop.   Objective:- To write a few words about any four empirical models used to calculate the cyclone separator efficiency.  To perform an analysis on a given cyclone separator model by varying the particle…

Aim: Perform a steady-state conjugate heat transfer analysis on a model of a graphics card. You can use appropriate materials of your choice for the simulation. Make sure to properly define the correct solid and fluid zones. Refer the video for further clarification and the model is provided below the video. Run the simulation…

Objectives: What are some practical CFD models that have been based on the mathematical analysis of Rayleigh Taylor waves? In your own words, 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 mesh being…

Aim: To perform CHT Analysis on Exhaust port. Objectives: Give a brief description of why and where a CHT analysis is used. Maintain the y+ value according to the turbulence model and justify the results.  Calculate the wall/surface heat transfer coefficient on the internal solid surface & show the velocity &…

Aim: To run a external flow simulation over Ahmed body. Objective: To run a external flow simulation over Ahmed body. Describe Ahmed's body and its importance. Explain the reason for the negative pressure in the wake region.  Explain the significance of the point of separation.  Solution:  Ahmed body and…

Aim: To Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street. Objective:  PART-I Simulate the flow with the steady and unsteady case and calculate the Strouhal Number for Re= 100.  PART-II Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds number…

Aim: To simulate mixing effectiveness of a hot and cold fluid mixing in a mixing tee using steady state simulation.   Objective: To simulate mixing effectiveness of hot and cold fluid in a mixing tee of different lengths and different momentum ratio and compare the results. Case 1  Short mixing tee…

Aim: For the given model, check and solve all geometrical errors and Assign appropriate PIDs. Perform meshing with the suitable Target length and element Quality criteria. Objective: To solve geometrical errors, create appropriate PID's and mesh the given model. Procedure: Import the given model using file import…

Aim: For the given model, check and solve all geometrical errors and Assign appropriate PIDs. Perform meshing with the suitable Target length and element Quality criteria. Objective: To solve geometrical errors, create appropriate PID's and mesh the given model. Procedure: Import the given model using file import option.…

Aim: For the given models, check for the geometrical errors and delete surfaces which are unwanted for Surface wrap as shown in the videos. After clearing geometry, Merge all 3 models and perform surface wrap. Objective: To clean geometry for the given model and merge 3 components into one model to perform surface…

Aim: For the given model, to check and solve all geometrical errors on half portion and Assign appropriate PIDs, Perform meshing with the given Target length and element Quality criteria. After meshing the half model, Do symmetry to the other side. Target lengths for the different parts of a model are as follow: Body -…

Aim: To generate volumetric mesh for a given Turbo charger model. Objective: To generate volumetric mesh for a given Turbo charger model by performing topo clean up, surface mesh and  defining volumes. Procedure: Import the given model using file import option. By toglling between the availble PID's and…

Aim: To perform geometry check, topology cleanup and mesh a given model. Objective: To perform geometry check, topology cleanup and mesh a given model with 3 different mesh length and identify the mesh length which gives the best results. Procedure: Imported the given model using the file import option. Using the Geometry…