Simulation of Flow through a pipe in OpenFoam

Objective: Write a code that takes all the reactions from the GRI mechanism and calculates the 10 most sensitive reactions. The sensitivity parameter should be with respect to the Temperature. Introduction  Sensitivity analysis is a process to get relationship between the parameters and output of the model. The ignition…

Objective: Simulate the Prandtl Meyer shock wave using Converge and post-process the results using Paraview. Study the boundary conditions used in shock problems Study the  effect of SGS parameter on shock location Types of boundary conditions Dirichlet BC  It is a type of boundary condition in mathematics.…

Objective: Setup a transient shock tube simulation. Plot the pressure and temperature history in the entire domain. Plot the cell count as a function of time  Introduction The shock tube is an instrument used to replicate and direct blast waves at a sensor or a model in order to simulate actual explosions…

Aim: To set up and perform Fullhydro simulation of PFI (Port fuel injection) engine using Converge. Objective: Set up full hydro simulation using Converge Studio. Obtain the compression ratio of the given engine. Calculate the combustion efficiency of the engine. Use the engine performance calculator, to determine…

Objective: Set up and run the transient simulation for flow over the throttle body in Converge, Postprocess the results Throttle body In a traditional spark-ignition gasoline engine, the throttle body is the part of the air intake system that controls the amount of air that flows into an engine's combustion chamber. It…

Objective:  Simulate the Flow around the Ahmed body and compare the results with wind tunnel results. Calculate the cd and cl using the different turbulence models. Ahmed body The Ahmed Body was first created by S.R. Ahmed in his research “Some Salient Features of the Time-Averaged Ground Vehicle Wake”…

Objective:  Setup a flow simulation through a pipe Perform grid dependence test Compare the effect of the supercycle stage interval Geometry   The geometry is created using the create cylinder shape option in converge studion. Inner radius=0.015m Outer radius=0.02m Case setup Application type: Time based Species:…

Objective: Write a program for calculating adiabatic flame temperature (AFT) of methane combustion at a constant volume chamber using python and compare the values with Cantera. Calculate the AFT for general hydrocarbon (CxHy) at a constant pressure reactor with heat loss.   Equivalence ratio`(phi)`: Air–fuel…

Objective: Derive the reaction rate ODEs of a simple reaction mechanism using compact notation. Reaction mechanism `CO+O_2=>CO_2+O`  R1 `O+H_2O=>OH+OH`   R2 `CO+OH=>CO_2+H`   R3 `H+O_2=>OH+O`       R4  For solving the reaction rate of different species we need…

Objective: Determine the adiabatic flame temperature of the stoichiometric combustion of methane at constant pressure by handling mixtures of methane and air as separate quantities of the gas object. Stoichiometric combustion of methane `CH_4+2(O_2+3.76N_2)rarrCO_2+2H_2O+7.52N_2` In this code A is considered as air…

Objective: Plot the effect of preheating on the adiabatic flame temperature. Change pre-heating from 298 to 600K. Write the formula for combustion efficiency Plot the effect of preheating on combustion efficiency. Plot the percentage of fuel-saving with air preheating The fuel used in the furnace is methane. Stoichiometric…

Objective: Write the reaction network code for stoichiometric methane combustion. Plot the variation of auto-ignition time with the change in pressure from one bar to 5 bar. Plot the auto-ignition time with the temperature from 950K to 1450K Plot the rate of change of molar concentration of H20, O2, OH with respect to…

Objective: Study of icoFOAM solver to simulate the flow through a backward-facing step Run the first simulation without grading factor.  Run the second simulation with the mesh grading factors of 0.2, 0.5 & 0.8. Compare the effect of grading factor with necessary contours & plots.  Measure the velocity…

Objective:  Write a program in Matlab that can generate the computational mesh automatically for any wedge angle and grading schemes For a baseline mesh, show that the velocity profile matches with the Hagen Poiseuille's equation, Show that the velocity profile is fully developed Post-process velocity and shear stress…

Objective: 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. Add the water content in the fuel from 5% to 30% by mole and observe the effect of it on the results.…

Objective:  Perform an analysis of the given cyclone separator model by varying the particle diameter from 1 µm to 10 µm and calculate the separation efficiency in each case. Discuss the results. [Use both the velocity\'s as 3m/sec] Calculate the separation efficiency and pressure drop by varying the inlet…

Objective: Solve the 1D supersonic nozzle flow equations using the Macormack Method. Write separate functions for conservative and non-conservative forms. Compare the normalized mass flow rate between the conservative forms and non-conservative forms make suitable conclusions. Supersonic flow through nozzle is governed…

Objective: perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.  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 flow coefficient. …

Objective: Perform a steady-state conjugate heat transfer analysis on a model of a graphics card.  Find out the maximum temperature attained by the processor. Prove that the simulation has achieved convergence with appropriate images and plots. Find out the heat transfer coefficient at appropriate areas of the model.…

Objective: Solving 2D heat conduction equation for steady-state and transient state by an iterative solver in Matlab. The 2-dimensional heat conduction equation is given by, `(delT)/(delt)=alpha*((del^2T)/(delx^2)+(del^2T)/(dely^2))` This can be solved for 2 conditions 1.Transient case     In this change in temperature…