Week 8 - Simulation of a backward facing step in OpenFOAM

Aim Perform CHT Analysis on Exhaust Port. 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 & temperature…

AimFor the given model of Tesla Cyber Truck, check and solve all geometrical errors and Assign appropriate PIDs. Perform meshing with the suitable Target length and element Quality criteria.ProcedureAfter importing model delete half model and ‘topo’ is applied on it to join the single cons into double and triple con.Single…

  Aim To merge the Engine, Transmission and Gear Box into a one model. Generating Surface wrap with target length of 3mm around merged model to have a common volume.    Introduction The surface wrap is used to create a watertight surface mesh which replicates the exact geometry of model. the surface wrap…

Aim 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 - 3 mm Lights - 4 mm Grills - 1 mm Rims and Tyres - 2 mm Optical Rear view mirror - 2 mm Window - 2 mm Silencer…

Aim To perform volume mesh and surface mesh with the given target lengths as per PID’s on Turbocharger. Blade stage-1 = 1 mm Blade stage-2 = 1 mm Impeller = 2 mm Shaft rotor = 1 mm Turbo casing = 5 mm Compressor casing = 5 mm Inlet casing cover = 5 mm Procedure Single cons and triple cons are identified along with…

Aim: Surface meshing of pressure valve with different target length.Target length = 1mm, 3 mm and 5 mm (i.e. 3 cases)Element type = TriaProcedureTopo-Cleanup:The first thing need to be done is to check for single cons and triple cons in the model. Sinle cons are cons that are shared with one surface only which indicates…

When fluid flows around bluff body results in two separating shear layers with opposite nature of vorticity which onset of interaction results in cutting of vortices i.e shedding of vortices in alternate manner from mainstream. This vortex shedding is in periodic manner with a particular frequency, and that generates drag…

Aim: To simulate an incompressible-laminar-viscous flow through the backward facing step geometry in OpenFOAM.  Solution I. Introduction The separation and reattachment of flows is an important process in a large number of practical engineering configurations like separation of flow behind vehicles, flow behind flame…

Aim: To simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle using the MacCormack's technique for both conservation and non-conservation forms of the governing equations.   Solution: 1.  Important aspcts of compressible flow:   The flow through converging -diverging nozzle is compresible…

Aim: To solve the 2D steady & transient heat conduction equation by using the point iterative techniques. 1. Jacobi Method 2.Gauss seidel Method 3. Succesive over-relaxtaion Method   Solution:   The domain used for analysis is a unit square with a Dirichlet boundry condition on all faces. The prescribed surface…