Transient Simulation of flow over a throttle body Using CONVERGE CFD

Geometry Model                        Front View                                                             …

OBJECTIVE: 1. Possible types of Combustion simulation in FLUENT. 2. 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 in Fig. You need to plot for CO2,…

OBJECTIVE: To write a program to determine combustion efficiency when a heat recuperator device is involved.   Questions: A furnace is used to burn Methane and Air Mixture. A recuperator is connected to this furnace to recover some energy. 1. What is the effect of preheating on the adiabatic flame temperature?…

OBJECTIVE: 1. Effect of equivalence ratio on AFT To write a program in Python to plot the effect of equivalence ratio on the final adiabatic flame temperature for methane contained in a constant volume chamber and compare the results with Cantera. 2. To write a program to calculate the effect of Heat Loss on Adiabatic…

OBJECTIVE: A complete thermodynamic analysis for a tractor application engine with basic target values provided The power produced by an engine must be 75HP i.e. 55.92 KW BSFC target limits provided are Min:210 g/Kw-hr and Max:225 g/Kw-hr A cooled EGR configuration to be implemented and integrated with basic engine model…

Objective: A detailed Report Post process the results and show pressure and velocity contours Show the mesh (i.e surface with edges) Show the plots for pressure, velocity, mass flow rate and total cell count Create an animation in which its throttle movement should be visible. 1. Transient flow simulation of fluid over…

OBJECTIVE: To explain how the mixture calculations are performed.   Questions: 1. Use the "moles" method/function of the A object and explain how it was calculated. You need to use this after line number 9. 2. Use the method mole_fraction_dict() of the A object and explain the result that you get. Here is how you…

OBJECTIVE: List down for Gasoline vs Diesel engine the pollutants after treatment devices with catalyst materials the example files Strategies used for reducing tailpipe emissions List down one set of chemical reactions for TWC and SCR from example files Explore - Example - after-treatment - DOC - Sampara & Bisset…

OBJECTIVE: To explore Detailed SI and CI Engine After treatment examples files   Detailed CI Engine After treatment case Model Below is the complete integrated model with detailed engine and detailed after-treatment system. The exhaust system is duplicated such that one copy uses the explicit flow solver and the second…

OBJECTIVE: Explore Example- Diesel_4cyl_DIpulse_injratemap and write a detailed report  Parameters-SOI, Rail Pressure Response- NO and bsfc minimum Run all designs for a case and find the optimum values Comment on your observations   Geometry Model The engine is a 4 cylinder, 4 stroke, 4 valves, direct injection,…

OBJECTIVE: Set discretization length of 0.1mm and compare it with the case of discretization length of 40mm Compare Parameters like Torque, BSFC, Maximum Cylinder Pressure, Simulation Time Explore the tutorial "Building Intake Manifold from STL model" i.e. conversion of 3D Model into 1D GT Model Discretization: Discretization…

OBJECTIVES: To explore FRM tutorial from GT-SUITE Build FRM Model for the following configurations using FRM builder approach: Bore 102mm stroke 115mm CR17 no. of cylinder 6 CI Engine Twin Scroll Turbine GT Controller   Exploration of FRM tutorial Here the approach used is FRM converter i.e. conversion of a detailed…

OBJECTIVES To list down different TurboChargers and locate examples from GT-Power Explore the tutorial no. 6 and 7 present in GT-Power To plot operating points on the compressor and turbine maps  To find the applications where Variable Geometric Turbine is beneficial To explore the example file of Diesel VGT EGR and…

OBJECTIVE: To select a random Engine from the internet with its specifications and run it for its Maximum Power & Maximum Torque validating at Rated Speed and Intermediate Speed To compare results and list down important parameters Post-process the following data         a. PV and log PV diagram…

OBJECTIVE: To explore the tutorial no. 1 'SI final' To run the case at 1800 rpm and list down the important parameters: Airflow rate, BMEP, BSFC, In-Cylinder Pressure Increase the power output at 3600 rpm by 10%   Pipeline: This is a Single Cylinder PFI Gasoline Engine. The setup consists of components such as End…

OBJECTIVES: 1. To find some practical CFD models that have been based on the mathematical analysis of Rayleigh Taylor waves and explanation of how these mathematical models have been adapted for CFD calculations. 2. To perform the Rayleigh Taylor instability simulation for 3 different mesh sizes with the base…

Objective: Post process the results and show pressure and velocity contours Show the mesh (i.e surface with edges) Show the plots for pressure, velocity, mass flow rate and total cell count. 1. Steady State Simulation of Flow over a body is a non-reacting simulation over a throttle body whose application is a general…

Objectives: To write a program to plot Velocity vs Drag force To write a program to plot Drag Co-efficient vs Drag force Formula: Drag Force(Fd) = 0.5*rho*frontal area*Velocity^2* Coefficient of drag(C_d) The factors involved are Velocity, Drag coefficient, Frontal Area, Density of air       1. Programme…

OBJECTIVE: 1. Application of CHT Analysis 2. To perform a CHT analysis on a model of an exhaust manifold and compare the solutions for 2 sizes of meshes. The first one is the baseline mesh and the second one is a finer mesh on the solid zone and also with inflation layers. 3. How do we verify if the HTC predictions…

Objective: Octave Programming of Stoichiometric Combustion calculation for Alkane, Alkene and Alkyne fuels Plots that compares the effect of the number of moles of carbon on the stoichiometric co-efficient "ar" and to compare how this trend changes with the fuel type (alkane, alkene and alkyne)   Stoichiometric…

Conjugation Heat Transfer Simulation is been carried out of the internal flowing pipe to compute the heat transfer within the fluid region (Air) and the solid region of the geometry. The geometry construction has been created and carried out in Converge Studio with a 0.015m internal radius and 0.035m the outer…

OBJECTIVE: To perform a steady state conjugate heat transfer analysis on a model of a graphics card for 2 variations of the mesh. One would be the baseline mesh and the other would be a more refined version of the mesh. Find out the maximum temperature attained by the processor. Prove that the simulation has achieved…

OBJECTIVE: To perform the simulation for two clearances of the gears using a different fluid (Water and Oil)   3D Geometry Model:   Extracting the volume and splitting the body by creating a plane in the x-y plane, we obtained a 2D geometry of the gears to carry out the simulations. 1. 2D Geometry (less clearance)…

OBJECTIVE: To perform a parametric study on a gate valve model and find out the mass flow rates at 5 design points.   Geometry Model:   The volume was extracted for the inlet flow, outlet flow and the Gate Disc as displayed below. The geometry components like Bottom, Gate Disc, Bonnet, Spindle, Hand Wheel were…

The Geometry Model CAT3410: Combustion Chamber only as "Closed Cycle Analysis" was done for computational efficiency. The injector is in the centre of the chamber having 8 nozzles with a sector angle of 60deg, Bore: 0.13716 m, Stroke: 0.1651 m, Connecting rod: 0.263 m, Crank Speed: 1600 rpm and Compression Ratio:…

Geometry Model: 1. Backward step geometry is been created in the converge studio, along with the flagging and the case is also been set up to carry out a simulation of flow over a backward facing step. 2.  Three different base mesh sizes are used (Converge studio resulted that the order of 10^-4 is…

OBJECTIVE: To compare your fastest steady-state simulation vs your fastest transient simulation.   Inputs assumed are same as that of previous projects as follows: 1. The domain is a unit square. 2. nx = ny=20 [Number of points along the x-direction is equal to the number of points along the y direction]…

OBJECTIVE: To simulate Steady and Transient Flow over a Cylinder for Re:100 To calculate Strouhal number for the steady and transient simulations   This is the problem which is being studied a lot by computationally and experimentally, to study and observe the effects of different parameters on the end result. …

OBJECTIVE: Write a few words about the four empirical models used for cyclone separator efficiency. Perform an analysis on the given cyclone separator model and apply four different boundary condition types at the inlet i.e. reflect, trap, escape and wall-jet and submit images on your findings on the different conditions.…

OBJECTIVE Shock flow boundary conditions What is a Shock wave? Effects of SGS parameter on shock location To look at the effect of SGS temperature value on cell count  What is a shock flow boundary condition? When we solve ODE’s & PDE’s at a boundary, we need boundary conditions are required to solve…

OBJECTIVE: To solve the conduction equation using a Transient solver and a Steady-state solver using Iterative techniques (Jacobi, Gauss-Seidel, SOR)   Assumptions: 1. The domain is a unit square. 2. nx = ny [Number of points along the x-direction is equal to the number of points along the y direction]…

OBJECTIVE:         To perform a grid dependency test on the Ahmed body and compare the results.   Ahmed Body and its importance: It was described originally by S.R.Ahmed in 1984. Ahmed body is a generic prototype or model of a traditional four-wheel vehicle. It is used in experimental as well as…

Objective: Setup a transient shock tube simulation Plot the pressure and temperature history in the entire domain - Explain the result Plot the cell count as a function of time - Explain the result   Shock Tube Basically, it is a device in which a plane propagating shock is produced in a long tunnel by abrupt rupturing…

OBJECTIVE: To mesh the model (Cylinder) using tools in ANSA with 1 unit as a size.   GEOMETRY: Cylinder Model Here we can see the distinguished cons.  The property was assigned to the boundary (wall) with the help of 'Cross Hatches'. This was all done in TOPO Module   Meshed Model  Here the mesh was…

1. The Case setup is been done of the Channel flow in Converge with the help of video's provided by Convergent Science. 2. Prepared the model along with the flagging. 3. The case is run for 3 different mesh base sizes as flows: 2e-4m 1.5e-4m 1.0e-4m 4. Ran the simulation using Cygwin Terminal with 4 processors and obtained…

OBJECTIVE: In this project, we have to perform 3 steady state simulations on the mixing tee geometry of which two versions are short and one is long. To set up steady state simulations to compare the mixing effectiveness. Case 1 Short mixing tee with hot inlet velocity of 3m/s Momentum ratio of 2 Case 2 Long mixing tee…