Week 3: Flow over a backward facing step

Simulating Spart Ignited Port Fuel Injection Engine (Part-2) Full Simulation Aim:- Simulating Spart Ignited Port Fuel Injection Engine Port fuel injection:- Port fuel injection systems long ago replaced carburetors in cars because of their efficiency and lower maintenance requirements. But now, automakers are…

Emission characterization on a CAT3410 engine Aim:- Simulating CAT3410 engine for two different piston configurations. Evaluating different engine parameters and emissions. Diesel Direct injection:- Diesel Direct Injection (DI) is a basic type of fuel injection system which is used in diesel engines. The simple DI diesel…

Abstract:            A nozzle is a mechanical device that is designed to control the parametric characteristics of the fluid that exhausts through it. The main purpose of the nozzle is to increase the velocity of fluid flow by dropping the pressure. Depending on the application there are various…

Simulating Spart Ignited Port Fuel Injection Engine (Part-1) Geometry preparation  Aim:- Geometry (Surface) preparation and Boundary Flagging of Spart Ignited Port Fuel Injection Engine. Objectives:  Splitting it into meaningful boundaries. Flagging the boundaries. Creating Regions. Port fuel-injection:- Port fuel injection…

Shock Tube Simulation Using Converge CFD Aim: Setting up the shock tube problem and simulating Shock flow using Converge CFD.  Objectives: 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…

  Conjugate Heat Transfer Simulation using Converge CFD Aim: Setting up the airflow through the Aluminum pipe & Simulating the Conjugate Heat Transfer analysis between solid and fluid using Converge CFD. Objectives:  Grid dependence test: We have to perform a Grid dependence test on 3 grids and…

  Prandtl Meyer Shock problem Shock Wave: Shock is an abrupt discontinuity in the flow field and it occurs inflows when the local flow speed exceeds the local sound speed. More specifically, it is a flow whose Mach number exceeds 1. A shock wave is a type of propagating disturbance that moves faster…

  Steady-state simulation of flow over a throttle body using CONVERGE CFD Aim: Simulating the Steady-state flow over a throttle body using CONVERGE CFD. Objectives: Able to simulate the over a throttle body using CONVERGE CFD. Post-process the results and show pressure and velocity contours. Show the mesh (i.e surface…

ransient simulation of flow over a throttle body using CONVERGE CFD Aim: Simulating the transient flow over a throttle body using CONVERGE CFD. Objectives: Able to simulate the over a throttle body using CONVERGE CFD. Post-process the results and show pressure and velocity contours. Show the mesh (i.e…

 Flow over a backward-facing step using CONVERGE CFD Aim: Simulating the flow over Backward facing step using CONVERGE CFD. Objectives: Able to simulate the flow over Backward facing step for three different base mesh sizes  different base mesh sizes are,  dx = 2e-4m,         …

Channel flow simulation using CONVERGE CFD Aim: Simulating the flow through a channel using CONVERGE CFD. Objectives: Able to simulate the channel flow for three different base mesh sizes  different base mesh sizes are,  dx = 2e-4m,              dy = 2e-4m,   …

Conjugate Heat-Transfer Analysis on a Graphics card CHT analysis:-       The Conjugate Heat Transfer (CHT) analysis type allows for the simulation of heat transfer between solid and fluid domains by exchanging thermal energy at the interfaces between them. Applications:…

Simulating Combustion of Natural Gas. Aim:- 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, need to plot for CO2, H2O, CH4, N2, O2, NOx emissions & Soot formation. …

Parametric study on Gate valve. Gate Valve : A gate valve is also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. The gate faces can be…

Cyclonic separator Cyclonic separation:- Cyclonic separation is a method of removing particulates from an air, gas, or liquid stream, without the use of filters, through vortex separation. Rotational effects and gravity are used to separate mixtures of solids and fluids.  Cyclonic separator:- A high-speed…

Rayleigh Taylor Instability Rayleigh Taylor Instability (RT instability):-        The Rayleigh–Taylor instability is the instability of an interface between two fluids of different densities which occurs when the lighter fluid is pushing the heavier fluid.      Examples…

Conjugate Heat-Transfer Analysis on Exhaust port CHT analysis:-       The Conjugate Heat Transfer (CHT) analysis type allows for the simulation of heat transfer between solid and fluid domains by exchanging thermal energy at the interfaces between them. Applications: simulation…

External flow simulation over an Ahmed body Aim:-Able to simulate flow over Ahmed's body using Ansys Fluent. Expected Results: 1. Velocity and pressure contours.  2. The drag coefficient plot for a refined case. ( For a velocity of 25m/sec, the drag coefficient should be around 0.33). 3. The vector plot clearly…

Steady / Unsteady Flow over a Cylinder. AIM:- Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street.    Objectives:- PART-I: steady-state simulation Simulate the flow over cylinder using a steady-state Solver and calculate the coefficient of drag and lift over a cylinder by…

Mixing Tee  Aim:- To set up steady-state simulations for two versions of the mixing tee. One of them is longer than the other and compares the mixing effectiveness when the hot inlet temperature is 360C & the Cold inlet is at 190C.  Theory: Computational Fluid Dynamics: Computational Fluid Dynamics (CFD)…

Data analysis:- file parsing, and data extraction Aim:-  write a script code that reads the data from the input file and takes column numbers as the input and plot the respective columns as separate images. Basic performance calculation:- Calculate the area under the P-V diagram. Calculate the power output of…

                                  Literature review: ODE Stability stable solution:- If the solution of the given problem is smooth and the solution converges to an original solution then that solution is called a stable solution. unstable solution:- If the solution of the given problem is not smooth & containing a lot…

                                                Sensitivity Analysis  Aim:- Write a code that takes all the reactions from the GRI mechanism and calculates the 10 most sensitive reactions The sensitivity…

             Multivariate Newton Rhapson Solver Aim: writing a code to solve the set of ODE equations with multi variables using  Multivariate Newton Rhapson Solver. use Implicit Euler Method/Backward Differencing for jacobian matrix. Equations: `dy_1/dt = -0.04*y_1…

                              Autoignition using Cantera Aim:- To find a variation of Auto Ignition time of Methane under various conditions, and observe the rate of change of molar concentrations of the given elements "H2O, O2, OH"…

             Compact Notation Derivation for a simple Mechanism Aim: Derive the reaction rate ODEs of a simple reaction mechanism using compact notation. Description: Chemical kinetics:  Chemical kinetics is also known as reaction kinetics. It is the branch of physical…

                    Combustion Efficiency & Fuel-saving Calculation after various Preheating Temperatures Aim: To find the effect of preheating on the adiabatic flame temperature, Combustion Efficiency & Fuel-saving  Calculation after Preheating Description:…

                                   Handling Mixtures with Cantera  1. Use the "moles" method/function of the A object and explain how it was calculated.  Mole fraction: The mole fraction can be calculated by…

Drag Force Against A Cyclist Aim: - Writing a PYTHON program to calculate drag force against a cyclist. Objectives: - Able to determine drag force over a bicycle for various bicycle velocities and various Drag Co-efficient values of different shapes with the same frontal area. Write a program to plot Velocity vs Drag force.…

Otto cycle Aim: - Writing a Python program that can solve an otto cycle and make plots for it. Objectives: - Able to find start & end-state properties for different processes in the otto cycle. Able to find net-work done by the system, the thermal efficiency of the engine. Able to plot the Pressure vs Volume (P/V)…

Simulation of Forward Kinematics of A 2R Robotic Arm Aim: - Write a program in python to simulate the forward kinematics of a 2R Robotic Arm, as shown in the video. Procedure: - Define all the inputs variables in the editor workspace like theta values, lengths of links. l1=1m, l2 = 0.5m, theta1 = 0-600, theta2 = 0 to 600.…

                                     Optimization of the Stalagmite Function using Genetic Algorithm Aim: - Writing a MATLAB program to optimize the stalagmite function and find the Global Maxima of the function. Objectives:…

                                    Adiabatic Flame Temperature calculation Aim: To find Adiabatic Flame Temperature of the following cases: Adiabatic flame temperature variation with Equivalence ratio (In constant volume chamber).…

curve fit Aim: - Writing a Python program to generate the best curve for given Temperature, specific heat data. Objectives: - Able to generate best linear, cubic polynomial curve for given Cp data. Description: -             Curve fitting is a process…

Pendulum motion Aim: - Writing a Python program that solves the following ODE. This ODE represents the equation of motion of a simple pendulum with damping. Objectives: - Able to simulate Pendulum motion. Able to plot Displacement vs time graph. Description: -             The…

                                               Otto cycle Aim: - Writing a Python program that can solve an otto cycle and make plots for it. Objectives: - Able to find start & end-state properties for different processes in the otto cycle. Able to find net-work done by the system, the thermal efficiency of the engine.…

Validation studies of Symmetry BC vs Wedge BC in OpenFOAM vs Analytical H.P equation Aim: in this challenge, we are going to simulate the same axisymmetric flow problem by applying wedge boundary condition & Symmetry Boundary Condition for various angles 10,25,45 degrees. The flow is laminar…

Simulation of Flow through a pipe in OpenFoam Aim: in this challenge, we are going to simulate an axisymmetric flow by applying the wedge boundary condition. The flow is laminar and flows through a constant cross-section pipe. simulation results validated with the Hagen- Poiseuille's equations for the fully…

Finite Volume Method (FVM): The finite volume method (FVM) is a method for representing and evaluating PDE in the form of algebraic equations. In the finite volume method, volume integrals in a partial differential equation that contain a divergence term are converted to surface integrals, using the divergence…

Simulation of a backward-facing step in OpenFOAM Aim we are going to perform a transient simulation on incompressible-laminar-viscous flow through the backward-facing step geometry. Cases: Case 1 - Simulate the flow without using any grading factor (i.e., GF = 1) Case 2 - Simulate the flow with a grading…

Simulation of a Quasi 1-D Supersonic nozzle flow simulation using Macormack Method In this challenge, you are going to simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle. You will derive both the conservation and non-conservation forms of the governing equations and solve them using MacCormack's…

Solving the steady and unsteady 2D heat conduction problem Aim Solve the 2D heat conduction equation by using the point iterative techniques for Steady & Transient State.  Description: -  Solving the 2D heat conduction equation by using the point iterative techniques for Steady & Transient State,…

Taylor table method to solve 4th order approximations of the second-order derivative Aim: - To write a program that compares the Central, Skewed right-sided  & Skewed left-sided  difference 4th order approximations for second-order derivative. against the analytical or exact derivative for a range…

Rankine Cycle Simulator Aim: - To create a Rankine Cycle Simulator using MATLAB. Objectives: - Able to calculate the state points of the Rankine Cycle based on user inputs. Able to plot T-s and h-s graphs for the given inputs. Description: - The Rankine cycle is a model used to predict the performance of steam…

                                                             Parsing of NASA thermodynamic data Aim: - Analyze and extract the NASA thermodynamic data of species…

                      Pendulum motion Aim: - Writing a MATLAB program to simulate Pendulum motion. Objectives: - Able to simulate Pendulum motion. Able to plot Displacement vs time graph & Angular velocity vs piston radius. Description: -            …