Week 8 - Simulation of a backward facing step in OpenFOAM

Aim: Create a MATLAB model of electric car which uses a battery and a DC motor. Choose suitable blocks from Powertrain block set. Prepare a report about your model including following: Objective:        1. System-level configurations        2. Model parameters    …

 Aim: To perform DC motor control. objective: 1. A. Explain a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’.     B. Comment on the armature current shoot-up from the scope results.     C. Refer to the help section of ‘The Four-Quadrant Chopper DC Drive (DC7) block’. Compare it with the H-bridge…

Aim:  Powertrain for aircraft in runways. Objective: Part A: 1. Search and list out the total weight of various types of aircrafts.  2. Is there any difference between ground speed and air speed? 3. Why is it not recommended to use aircraft engine power to move it on the ground at Airport?  4. How an aircraft…

Aim: Braking Objective: Calculating the energy needed for braking of UDDS Drive Cycle-Braking: Braking could be a condition to cut down or stops a moving vehicle pro re nata. There area unit many techniques to use brakes, which might be mechanical or…

Aim:  To perform the EV Dive Train. 1.  Which types of power converter circuits are employed in electric and hybrid electric vehicle?  Ans:- A motor drive consists of an influence device and also the controller. the ability convertor handles the flow of bulk power from…

Aim: To perform the WOT conditions for the below questions. What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type?  How does the model calculate miles per gallon? Which factors are considered to model fuel flow?  Run the HEV ReferenceApplication…

Aim: To Perform Use the ADVISOR tool and simulate the following:   1) For EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, can the vehicle travel for 45 km with FTP drive cycle? Conclude your observations. Load the Adviosr tool from the matlab command window and load the file…

Aim: To Prepare the Highway Assistant – Lane Changing Assistant. Introduction to the Feature: The Highway Assistant supports the driver and takes over the longitudinal and lateral guidance of the vehicle in monotonous driving situations on highways. The partially automated function can automatically start, accelerate,…

Aim: To create Traffic Jam Assistant Feature. Introduction to the Feature: Traffic Jam Assistant is one of the most common feature in Advanced Driver Assistance System. Traffic Jam Assistant helps the driver arrive more relaxed at their destination, even in dense traffic or in traffic jams. As a partially automated…

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: Target length for Wrap = 3 mmWrite a detailed report on steps followed to finish this challenge. Geometry:…

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: Target lengths for the different parts of a model can be decided by your own. Finer mesh will give good results and will compromise with…

Aim: Setup and run transient state simulation for flow over a throttle body.   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. Also show the calculations on how you calculated…

Q1. What is the Compression ratio for the engine?   The compression quantitative relation is that the quantitative relation between the degree of the cylinder and combustion chamber in an enclosed combustion engine at their most and minimum values.in a very piston…

Aim:  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. objective: Target lengths for the different parts of a model are as follow: Body - 3 mm…

Aim: To do the case set up for the bowl profile for the baseline engine and 3D geometry of the open-w piston is provided.  INTRODUCTION: During this project, I will be able to demonstrate the diesel motor simulation and also the characteristic distinction between open…

Aim: To check for the geometrical errors to make appropriate volumes. Create and assign PIDs as shown in the video. Perform surface mesh with the given target lengths as per PIDs. Objective: 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…

Aim: To came upon a combustion simulation with the small print given within the challenge and to review completely different properties of combustion by post process the results obtained by the calculation of the total fluid mechanics set up of the given pure…

Aim: To setup a No Hydro case for IC engine in converge studio. Objective: The Tasks that you need to perform are 1, Boundary Flagging. 2, Surface preparartion. After setting up the NO HYDRO case set up, make sure you create an animation for NO HYDRO and send it to us on freshdesk (support@skill-lync.com) Make sure you…

Aim: Apply Reynold's decomposition to the NS equations and come up with the expression for reynold's stress.   Objective: Apply reynold's decomposition to the NS equations and come up with the expression for reynold's stress. Explain your understanding of the terms reynold's stress. What is turbulent viscosity? How…

Aim: To setup a case study for Shock Tube in converge studio. 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. Theory:  Introduction: The shock tube is associate instrument wont…

Aim: To Setup a flow simulation through a pipe. Objective: Inlet Reynolds number should be 7,000 HINT : Use the below formula to calculate velocity for corresponding value of REYNOLD NUMBER and give DIRICHLET BC for velocity at inlet and specify the value for velocity calculated at INLET BC using below formula…

Aim: To Set up a case study of shock flow using Converge studio and Paraview. Objective: 1. Shock flow boundary conditions Do a literature search on what BC's are typically used for shock flow problems 2. What is a shock wave? In your own words, describe the physics behind shock waves 3. Effect of SGS parameter on shock…

Aim: To Set up and run the steady state simulation for flow over throttle body. 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. Create an animation in which it throttle movement…

Aim:  To setup the case in CONVERGE studdio. Objective: Once you have watched the video, setup the case in CONVERGE Once you have the base setup ready, run the case for three different base mesh sizes dx = dy = dz =2e-3m dx = dy = dz =1.5e-3m dx = dy = dz =1.0e-3m (If this is too much for your PC, use 1.2e-3m)…

Aim:  To check for the geometrical errors and perform Topology cleanup accordingly. Set three different target length for different cases and mesh the model. Objective: For the given model, check for the geometrical errors and perform Topology cleanup accordingly. Set three different target lengths as three different…

Aim: To Setup a channel flow Cases. Objective: 1. For this challenge, we will be setting up a channel flow tutorial. 2. As you watch these videos, set up the case in CONVERGE 3. Make sure the inlet pressure and initial pressure are the same.  4. Once you have the base setup ready, run the case for three different…

Aim: To Identifying the direction of the vehicle is one of the important & diverse features in Autonomous driving & Advanced Driver Assistance Features. Objective: Development of MATLAB Simulink model as per requirement. Tag the requirements to the simulink model; tagging requirement 1 & requirement 2…

Objective: To obtain Adaptive Cruise Control Feature for passenger cars allows the host vehicle to adapt to the speed in line with the flow of traffic. Model configuration: Follow all the ADD connected processes: demand Tagging & Traceability, SLDD creation, Configuration Parameter changes,…

Aim:   To simulate an incompressible-laminar-viscous flow through the backward facing step geometry. You should perform a transient simulation. The solver can be chosen based on the described physics of the flow. You need to explain the entire simulation procedure (how you set up the case). You should also provide…

Aim:  To perform the effect of the wedge angle and the Boundary Conditions on the simulation of an axisymmetric laminar flow in a cylindrical pipe.  objective: In this challenge, you will simulate the same problem as in week 1 but by applying Symmetry Boundary Condition. You will do the simulation for the…

Aim:  In this challenge, you will simulate an axi-symmetric flow by applying the wedge boundary condition. The flow is laminar and flows through a constant cross-section pipe at an inlet Reynold's number of 2100. You can do a transient or steady state simulation and you will validate your results with the Hagen- Poiseuille's…

Aim: To write down the major differences between FDM & FVM. Also, describe the need for interpolation schemes and flux limiters in FVM. You can use the 1D linear heat conduction equation as an example.  Theory: Introduction: FVM: (FVM) is interpreted as a new kind of Galerkin finite element method (FEM),…

Major Project Aim: To Calculate the area-weighted average temperature of water at the exit. Software Used: Ansys fluent 2022 R1 Objective: Water having a temperature of 80deg Celsius enters the inner pipe with a velocity of 0.25m/s, and water having a temperature of 15deg Celsius enters the outer region with a velocity…

Aim: To 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.  …

Aim: To analysis the Rayleigh Taylor waves 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…

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

 Aim: Perform a combustion simulation on the combustor model using Methane gas. objective: Part I 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…

Aim: As the body is perfectly symmetric, we can run the simulation by considering the only half body. This is the best practice where you can save on the number of cells and get the results faster as well.  The geometry which is provided with the challenge needs a modification which you should be able to do at this…

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…

Aim: CHT analysis of the exhaust port. Objective:   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: For this challenge, we have created two versions of the mixing tee. One of them is longer than the other. Your job is to set up steady-state simulations to compare the mixing effectiveness when hot inlet temperature is 360C & the Cold inlet is at 190C.  Use the k-epsilon and k-omega SST model for the first…

Aim: 1. Steady-state analysis & Transient State Analysis Solve the 2D heat conduction equation by using the point iterative techniques that were taught in the class. The Boundary conditions for the problem are as follows; Top Boundary = 600 K Bottom Boundary = 900 K Left Boundary = 400 K Right Boundary = 800 K Introduction…

Aim:  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 sovle them using the MacCormack's technique. You need to determine the steady-state temperature distribution for the flow-field variables…

Aim: close all clear all clc %value of x x = pi/3; %Range of dx dx = linspace(pi/4,pi/4000,20); %for loop for i = 1:length(dx) central_differencing = fourth_order_central_differencing(x,dx(i)); right_sided_skew = fourth_order_right_sided_skew(x,dx(i)); left_sided_skew = fourth_order_left_sided_skew(x,dx(i)); end %Plotting…

 Project #2 - Meshing on the suspension Assembly Aim: For the given assembly, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned for mid surfaces. Use tetra elements to model non-uniform thickness components. Also use Appropriate…

Project #1: Aim: For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned. Objective: Write a detailed report on your meshing process and also mention which method you used to extract the mid-surface along with…

Week 6 #Side Door Aim: To give connection to Rare door FE model. Objective: Now for the given Rear door FE model, Create and Apply different PIDs for different components. By using the same technique and the elements as shown in the video, Perform suitable connections. Employ the right tools for NVH modelling ANSA is a…

Aim: To Perform Morphing on 2 models. Objective: 1) Practice all the Morphing techniques that were shown in the video for Model-1.  2) Perform morphing for the Model-2 and Increase the Height of the Dog houses and Ribs. 3) Write a report on Morphing of both models and Discuss applications of morphing in various industries.…

Aim: For the given Intake Manifold component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criterias given below.  Objectives: S.No  Quality Criteria  Value  1 Target/Average length   3 2 Minimum Length  1 3 Maximum Length  5 Using the…

Aim: To check the geometry and generate a mesh of the mirror using 2D element quality criteria. Objective: S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  0.5 3 Maximum Length  2   Use tetra elements to mesh the Volumes defined in the model and check…

Aim: To Model the tool testing using the quality criteria shown below. Objective: This tool test carries two models (i.e. Plastic model, Sheet metal model). For both the models, Mid surface should be taken and meshed as per below quality criteria. Thickness should be assigned to both the models.  (Refer “Model…

Aim: To Model the 2D bottle cap mesh using Ansa v22.1. Objective: For the given Plastic Bottle Cap model, check for the geometrical errors and take the mid surface by suitable mid surfacing techniques. PID and Thickness assignment has to be done for all the mid surfaces. Mesh the same with given element Quality criteria.…

Objective: For the given Hood model, Take the mid surface for all the components after checking the geometrical errors and mesh the mid surface with the given element Quality criteria. (Refer the table Below for the Quality criteria)  Process: Open the Ansa work bench ANSA v22.1.0. Import the Car hood model by going…

Aim: 1.Simulate the 3 test cases from harness dashboard and write a detailed report on the results 2.What is coulomb counting? Refer to the above model and explain how BMS implements coulomb counting for SOC estimation ? https://in.mathworks.com/matlabcentral/fileexchange/72865-design-and-test-lithium-ion-battery-management-algorithms…

Aim: Prepare a report summarizing thermal management techniques for electric car battery pack. Objective: Create a simple simscape model with  a battery and show the temperature dependence in the performance. Also connect a resistor load of 10 Ohm. Compare the resultants graph for different area of contact of heat.…

Aim: Battery pack capacity: 18 kWh Cell: ANR26650M1-B  Objective: Prepare a detailed battery pack drawing along with its enclosure. State your assumptions. ANR26650M1-B Specifications  Nominal Ratings   Voltage: 3.3 Volts   Capacity: 2.5 Ah   Energy: 8.25 Wh   Specific Power: 2600 W/kg  …

Aim: Prepare a table which includes materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells. Introduction: Lithium-ion cells are widely used for cellular phones and note-type personal computers (PCs) because of their high voltage and high energy…

Aim: To do that, the following steps need to be followed: Load the Project2 folder as the Current Folder in Matlab. 2) Run the “Project2_InitFile.m” Matlab script. 3) Copy the Conventional vehicle Simulink model created for Project 1 in this folder. Figure 1: P1 Hybrid ArchitectureHybrid Drives Development…

Aim: The main goal of this project is to get familiar with the modeling process, writing scripts in Matlab, modeling in Simulink, analyzing data and generating plots. Objective: In this project, a typical midsize car with a 1.9L engine and a 4-speed automatic transmission is considered. Data is taken from ADVISOR data…

Aim: Carry out a system-level simulation of an all-terrain vehicle. Theory: An all-terrain vehicle (ATV), also known as a light utility vehicle (LUV), a quad bike, or simply a quad, as defined by the American National Institute (ANSI); is a vehicle that travels on low-pressure tires, with a seat that is straddled by the…

Aim:Implement control logic of a “washing machine” using Stateflow as per given sequence: Objective:If the power supply is available, the system gets activated If the Water supply is not available, stop the process & indicate through LEDSoaking time should be 200s followed by Washing time of 100s.Then rinsing…

Aim: To Create a Simulation model of doorbell using solenoid and switch. To use the Thermistor to sense the temperature of heater and turn off/on the fan as per condition. Objective: To make a Doorbell with switch to observe the physical movement of the plunger. To use a thermistor to sense the temperature of a heater…

Aim: To calculate the displacement of the beam due to boundary condition and applied load at any point of the beam. To find the node iso-parametric beam element to solve the deflection. In order to coding I’m using MATLAB R2021b.   Objective: To implementing a code which solves cantilever beam and simply supported…

Theory: Aim: To Calculate the Forward Kinematic of 2R robotic arm. Process: let considered a Base having axis (0,0), l1 is the length of first arm having angle of deflection of theta1 and l2 is the length of the second arm having angle of  theta2, Now let the co-ordiantes of the arm (x1 y1), (x2 y2). Here Forward…

Aim: To create a Rankin cycle stimulator using Matlab. To find the thermodynamic state points of each state. Objective: To Calculate the Rankin cycle State points at different stage. To calculate the net work done by the system. To find the Ratio of pump work.   Theory: What is Rankin cycle: The Rankine cycle is an…

Aim: To evaluate thermodynamic properties such as Cp, H and S. They have also documented the co-efficients that are required to evaluate these polynomials for 1000+ species.   Objective:  Writing a function that extracts the 14 co-efficients and calculates the enthalpy, entropy and specific heats for all the…

Aim: To optimise the stalagmite function and find the global maxima of the function. Objective: To explain the Genetic Algorithm with GA syntax. To calculate the global maxima of stalagmite function. To plot graph of various study cases. Process: Frist Creating Stalagmite function using the stalagmite governing…

Aim: To Calculate SHM of a pendulum and plotting the Graph of displacement and velocity against time. Theory: Simple Pendulum consists of mass m, length of string L, damping coefficient b and gravity g always acting on it downwards. Simple pendulum is mechanical device used to observe the oscillatery motion from a fixed…