Week 3 - Solving second order ODEs

Aim:  Need to check the geometrical errors and unwanted surfaces are need to be removed and then wrap model with arget length as 2 mm, merging all parts as a assemble. Procedure: Open Engine model in ANSA Engine block: Check for unwanted geometry parts, hide top surfaces with the not option, and delete inside surfaces.…

Aim: Check and correct all geometrical flaws for the provided tesla cybertruck model, and then assign suitable PIDs and then requried Target length and element for the mesh Quality criterion.   After using the topo tool in the geometry, we can see that all single cons have been transformed to double cons. Thus, we can…

Aim: To check for geometrical errors and create appropriate volumes for the given model, create and assign PIDs. Surface meshing with the given target lengths according to PIDs. Body - 3 mm Lights - 4 mm Grills - 1 mm Rims and Tyres - 2 mm Optical Rear view mirror - 2 mm Window - 2 mm Silencer - 3 mm Logo - 1 mm Learning…

AIM: To check for geometrical errors and create appropriate volumes for the given model, create and assign PIDs. Surface meshing with the given target lengths according to PIDs. 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 =…

Aim: To create three distinct meshes with three different target lengths, to generate surface meshing on a given model. Geometry: The model provided has many geometrical errors which are to be corrected before meshing the domain. There are numerous issues, as we can see. In geometry, there are several flaws and gaps. Thus,…

AIM: To calculate the global maxima of a stalagmite function in MATLAB. Objective:To write a code in MATLAB to optimize the stalagmite function and find the global maxima of the function. To plot graphs for all 3 studies and for F maximum vs no.of iterations. Theory: Genetic Algorithm is a search based optimization technique…

AIM: To calculate the global maxima of a stalagmite function in MATLAB. Objective:To write a code in MATLAB to optimize the stalagmite function and find the global maxima of the function. To plot graphs for all 3 studies and for F maximum vs no.of iterations. Theory: Genetic Algorithm is a search based optimization technique…

Aim: A program to simulate the transient behavior of a simple pendulum and to create an animation of its motion. Sub-Objectives: Write a program to solve the ODE Plot the displacement v/s time and velocity v/s time graphs Create an animation of the motion of the pendulum Introduction: In Mathematics an ordinary differential…

Aim: To simulate the bending of the iPhone using Ansys workbench Case-1 when bending action is performed from one of the longitudinal sides of the Phone. Case-2 when bending action is performed from the center position to the given position X= 22.5mm & Z= 10mm. Assign Aluminum alloy NL to the frame of the phone…

Aim: To perform a parametric study using 3 different values of thickness for the car body. You need to apply the same conditions as the mentioned challenge. Analyze the Total deformation Equivalent stresses  Geometry: Now we need to upload the geometry and open it in space claim and see if there are any discontinuities…

Aim: For this challenge, you will have to simulate a bullet penetrating into a bucket. We will need to use 3 different non-linear materials for the bucket and analyze is their behavior for the same velocity of the bullet. Apply the conditions for bullet as mentioned in the video. Attach an animation to show the behavior…

Aim: To perform an explicit dynamics simulation on a Planner Machining to find out the Equivalent Stress. Total Deformation. Insert a User-defined result to calculate the temperature of the body. We need to perform 2-cases. One will be with a cutting velocity of 20000mm/s The other will be with a cutting velocity of 15000mm/s.…

Aim: We need to perform the tension and torsion test on the specimen provided in the challenge.  For the tension test, displace one end of the specimen to 18mm while keeping the other fixed. we need to find out the total deformation, equivalent stress, and temperature of the specimen. For the torsion test, we need…

Aim: To perform a transient structural analysis on a double universal joint with a spring using three different materials Structural Steel Stainless Steel Titanium alloy The three materials must be used on the joint with the springs alone. We need to obtain the Equivalent stress and total deformation for all the three…

Aim: To perform a transient structural analysis on a worm gear assembly and determine the results for  Equivalent stress, Equivalent elastic strain, and the total deformation in the model. Case setup:  1.Material Selection. In material, Structural steel is by default applied to all bodies that are …

Aim: To perform a Transient analysis on piston and cam mechanism for three different cases To run the analysis with Case:1 Contact between Cam and follower is Frictionless.  Case:2 Contact between Cam and follower is Frictionl with a coefficient of Friction with 0.1. Case:3 Contact between Cam and follower…

Aim: In this challenge, we have to perform the analysis to simulate a sphere pressing on a plate by using structural steel for both sphere and plate but the material of the plate much be Non-linear. Press the sphere onto plate 4mm downwards and retract it. Procedure: First, we have to input the engineering materials with…

Aim: To perform a static structural analysis of wire bending operation using ANSYS and present a comparative analysis of results by assigning three different materials to the wire piece. Material to be used are  1.Copper Alloy NL 2.Aluminium Alloy NL  3.Magnesium Alloy NL Introduction: A bending machine is…

AIM: To study and perform analysis on the weld joints using different materials for the welds and compare the results with each other 1 To simulate three different types of welding joints using three different weld materials. 2. To find out the directional deformation and equivalent strain experienced by the setup. 3.…

AIM: To perform a static structural analysis on the Rail Wheel and Track setup and then Multiply the bearing load by 5 times and compare the results with the load of 100000 N. Comparing the Total Deformation, Equivalent stress, and life under both the loads. Implement a User-defined result and calculating the Total…

Aim: To study and perform structural analysis on sheet metal with different material and frictional coefficient. A grid dependency test was also performed to optimize the element size for better accuracy. Case 1: Aluminium Alloy 1199, Copper Alloy NL, and Magnesium Alloy NL. Finding out the Equivalent stress, Equivalent…

Aim : Structural analysis was carried out to determine the behavior of a workpiece made of copper by measuring the stress equivalent, deformation in a specific direction, and plastic strain. Introduction: In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs…

Aim: The main objective of this challenge is to perform the grid independency test on the Bevel gear with different types of mesh sizes that have been provided in the challenge. S.NO Mesh size  Units 1 6 mm 2 4 mm 3 5 mm Grid dependency test: The convergence of grid dependence is the terminology used to characterize…

Aim : In this task, we will carry out a static structural analysis with the three different materials assigned here on a spur gear, keeping the boundary conditions constant and implementing the tests for different materials accordingly. Case 1:                    Using…

Aim: The task, in this case, is to design a rectangular plate with a given diameter and thickness according to the challenge and to perform static structural analysis using ansys workbench. The material used is structural steel. Determine the maximum deformation and stress developed in the model. Case:1 Design a plate…

Objective: To design and evaluate the flow domain comprising a portion of the Hexa grille inside the domain. To study the parametric method, the parameter trails, and the primary and compound functions to be reported for the challenge. Introduction:    Simulations of electrical equipment, enclosed electronics…

Problem Description: An Icepak 3D fan object may sometimes behave differently from real fan behavior. Typically this is due to flow features like swirl and centrifugal spread resultant from the spinning fan rotor as well as the rotor blade geometry. In an Icepak fan-based setup, this swirl is estimated and calculated off…

Aim: To simulate the full hydro setup of a Port Fuel injection engine which uses Iso octane as the fuel and based on the results from the simulation calculation the following: 1.Compression Ratio 2.Combustion Efficiency 3.Power and Torque 4.Significance of CA10, CA50, and CA90 Geometry Surface preparation and Boundary…

Aim : The aim of this challenge is to check the temperature increases in the configuration of the low voltage control panel with circuit breakers and bus bars. The impact of natural convection on circuit breakers and bus bars device was also observed. Problem Description: The system of bus bars and disrupting circuits…

Objective : The main objective of this challenge is to learn the concepts of the PCB modeling and also the  How to import trace layout of a typical PCB and solve two sample cases based on the trace layout information. How to use Model layers separately option for better accuracy. how to model resistive heating or…

Aim: The objective of this challenge is to authenticate the increase in temperature for the low voltage control panel for the configuration in a statement. Perform a simulation throughout accordance with the regulations provided for in the challenge. Problem Statement: Here we need to evaluate the increase in temperature…

Objective :                                       The main objective of this challenge, we have created the mesh model for assignment-1 that has been provided in the week-3. The total solver parameters were set accordingly…

Objective :                                       The main objective of this challenge, we have created the mesh model for the assignment-2 that has been provided in the week-5. The total solver parameters were set accordingly…

AIM : In the challenge, we will perform a 1D flame speed analysis for methane and hydrogen mechanisms using Python and Cantera. We will be trying to answer some questions devised to understand the significance of this assignment. What type of analysis is this, steady-state or transient? Why do we need a separate file to…

Objective:                              We need to create a conformal mesh for the power supply model that has been provided in the previous challenge. Process for the setup the simulation : First, we need to import the geometry into the Space claim…

Introduction: ANSYS Workbench combines access to ANSYS applications with utilities that manage the production workflow. Applications that can be accessed from workbench include  ANSYS DesignModeler (for geometry creation).  ANSYS Meshing (for mesh generation).  ANSYS FLUENT or ANSYS…

Objective : The main objective of this challenge is to improve the mesh resolution on and around the CAD objects by using the multi-level meshing technique. And the procedure must start with a  coarse background mesh and resolves fine level features through a series of successive mesh refinements. 1.Problem Description:…

Objective:                                                   To perform the analysis for a two heated plates model, cooled by water circulating inside the cold-plate cavity, as well as by air driven…

Objective: The power-based assembly was provided for the challenge. And we need to create a workflow in the Ansys workbench and also import the CAD model into Spaceclaim. Introduction: ANSYS Workbench combines access to ANSYS applications with utilities that manage the production workflow. Applications…

Objective: To create a finned surface heat sink and simulation the heat sink using Ansys ice-pak and keeping the design objective, the base of the devices should not exceed 65°C when air sweeps the fins at an ambient temperature of 20°C. Introduction: A heat sink is a passive heat exchanger that transfers…

Objective : 1. The CAT3140 engine for open-W and omega piston models generates a sector geometry of the combustion chambers. 2. To simulate the two-sector profiles with the same parameters. 3. To analyze and compare the different operative conditions of both configurations and compare their performance parameters. 4. To…

Objective: To apply Reynold\'s decomposition to the NS equations to get the RANS Equations Explain your understanding of the terms Reynold\'s stress What is turbulent viscosity? How is it different from molecular viscosity? Theory for the turbulence: The term \"turbulence” is used for a large variety of dynamical…

Objective: To perform surface preparation and boundary flagging tasks on the IC engine case and set up a no hydro simulation Procedure: We are likely to get many errors in the design geometry first when importing our geometry and diagnosis in converge CFD. In order to start working on our problem triangle, we flag identifiable…

Objective : When the diaphragm breaks and flow simulation is performed at the converge studio and the post-process tests in Para View are combined with diaphragm from two regions with high and low-pressure fluids. Cygwin was used to execute simulation commands and transform post-processor files. The N2 and O2 gas are used…

Objective: To set up flow simulation through a pipe and to run a grid independence test and find the effect of grid size on the Y-plus value and study the effect of super cycling interval on the simulation. Introduction to the Conjugate heat transfer analysis:                  …

Objective : To visualize the  Prandtl Meyer expansion fan over an expansion corner using converge and understanding the effect of the Sub-Grid scaling (SGS) parameter on the shock location. Background : A supersonic expansion fan, a two-dimensional simple wave, is a central extension process that happens as a supersonic…

{Transient state simulations} Transient state simulations of flow over a throttle body Objective: To simulate a transient state flow through a throttle body using converge studio Throttle: A throttle is a mechanism by which fluid flow is managed by constriction or obstruction. An engine\'s power can be increased or…

Steady-state simulation of flow over a throttle body. Objective: To simulate flow through a throttle body using converge studio Throttle: A throttle is a mechanism by which fluid flow is managed by constriction or obstruction. An engine\'s power can be increased or decreased by the restriction of inlet gases (by the…

Possible types of combustion simulation in Ansys are fluent. Non-premixed Combustion. Premixed Combustion. Partially Mixed Combustion. Fluid Phase (volumetric reactions) Wall (Surface Reactions) Particles (Surface reactions) Porous Regions. 1.Non-premixed Combustion. In non-premixed combustion, fuel and oxidizer…

Exhaust Port Challenge AIM: we need to compare the solutions for 2 sizes of meshes. The first one should be the baseline mesh and the second one should have a finer mesh on the solid zone and also with inflation layers.and to plot the velocity, temperature, and heat transfer coefficient plots. 1.Conjugate heat transfer…

Aim:                                   We have to perform a parametric study on the gate valve simulation by setting 5 design points starting from the initial condition of lift with the least value of mass flow rate. Parametric study:…

Aim : Analyze the flow fluid pattern for two different geometry clearances and to conduct the analysis with one another fluids to run four cases on the clearance gearbox and with two separate fluids 1.case- 1 Gearbox: Air and Water. 2.case- 2 Gearbox: Air and oil. 3.case- 3 Gearbox: Air and Water. 4.case- 4 Gearbox:…

Objective: To simulate the flow of fluid in a channel using CONVERGE for 3 different base mesh sizes are,  dx = 2e-4m,              dy = 2e-4m,       dz = 2e-4m  dx = 1.5e-4m,           dy = 1.5e-4m,    dz = 1.5e-4m…

Objective: Performing simulation on Reaction Reduction Mechanism for the GRI3.0 mechanism. Writing a python code to execute the object below We need to build the code in the way we can accomplish this. Run a reference Ignition delay and Max temperature analyses for the unlowered function (Temperature,…

After The base setup is ready, we should 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) Objective: In this project, we are going to: Analyze and simulate flow through a backward-facing step Plot contours for…

Objective: In this assignment, we will be writing a Python/Cantera Code to find the 10 most sensitive reaction out of all the reactions in the GRI3.0 mechanism. The main parameters of this assignment are given below. Write a code that takes all the reactions from the GRI mechanism and calculates 10 most sensitive reactions.…

Aim:- In this challenge, we will write code for calculating Autoignition time for methane under various conditions using Cantera. Here we have further two challenges. Case-1 : Calculate the autoignition time for methane to below conditions i)variation of Auto Ignition time of Methane with a constant pressure of 5 atm and temperature varying…

OBJECTIVE:- In the current challenge, we are going to be programming a multivariate Newton raphson solver for the following system of equation In the given equation system we can say they are combined and non-linear, and we can verify their association y1,y2,y3 can only be solved the three equations together. They say…

AIM: To derive the reaction rate ODES of given simple reaction mechanism. Rates of reaction for Multistep Mechanism:                            We have a four-step mechanism, Frist we will be forming the compact rotation for the reaction rates of mechanisms.…

AIM To discuss the stability of an ODE system 1. When does an ODE become unstable? The ODE becomes unstable for large timesteps an explicit method. The implicit method is unconditionally stable. Consider a python program for an explicit method to observe the stability of ODE  import math import matplotlib.pyplot as…

AIM : To calculate the effect of heating temperature on AFT and combustion efficiency. Recuperator: A recuperator is a special purpose counter-flow energy recovery heat exchanger positioned within the supply and exhaust air streams of an air handling system, or in the exhaust gases of an industrial process, in order…

AIM :   To work with the Quantity class of Cantera to create various mixtures and we will explain how the mixture calculations are performed.   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()…

AIM : 1. Consider a constant pressure reactor with heat loss. The reactor is initially set at STP conditions. 2. The heat loss should be input in your program and must be a fraction of the \"maximum possible heat loss\". You will control heat loss using a variable called H_loss. For example, H_loss = 0.5 would mean a heat…

Simulation of flow through the pipe in open Foam: In this challenge, we are going to change the wedge angles as 10,25 and 45 degrees. the other changes are made in the block mesh Dict, pressure, and velocity files. Entrance length: The length of the entrance is the distance that fluid travels after entering a pipe before…

Simulation of flow through the pipe in open Foam:                                                              The objective of the challenge is to perform a simulation…

 AIM: The main aim of this analysis is to determine the maximum temperature attained by the processor and heat transfer coefficients at appropriate areas as well as potential hotspots on the model. we need to do this for 2 variations of the mesh. One should be the baseline mesh and the other should be a…

Objective: we have to perform an analysis on the cyclone separator model for different number of injected particles   1.The four empirical models used for cyclone separator efficiency Cyclone Separator:                  Cyclone separators provide a method of removing particulate…

Objective : We need to perform the Rayleigh Taylor instability simulation for 3 different mesh sizes with the base mesh being 0.5 mm. and also explaining why a steady-state approach might not be suitable for these types of simulation. Q1.Some practical CFD models that have been based on the mathematical analysis of Rayleigh…

Objective: Performing a Grid dependency test on an Ahmed body and compare the results. 1.Ahmed body and its importance: 1. The Ahmed body is a generic car body (a simplified vehicle model). 2. The flow around the Ahmed body encompasses the critical flow characteristics around an automobile. 3.S.R.Ahmed…

OBJECTIVE :             The main objective of this project is to make a backward-facing step block by editing the blockMeshDict file and simulate it in OpenFOAM and post-process the results like velocity profile near the step zone and to check the effect of grading scheme on the velocity profile.…

FVM : Interpolation and Gradient Schemes literature review.   Interpolation schemes  1.Upwind  interpolation : Upwind schemes use an adaptive or solution-sensitive finite difference stencil to numerically simulate the direction of propagation of information in a flow field. The upwind schemes attempt…

Objective:           The main object of this project is to write separate functions for conservative and non-conservative forms To figure out the minimum number of cycles for which the simulation should be run in order for convergence Comparsion the normalized mass flow rate between the conservative…

objective: The main objective of this challenge is to solve the 2-D heat conduction equations for the steady and unsteady state using the iterative techniques such as Jacobi, gauss seidel and successive over-relaxation method This heat equation is needed to solve by the explicit (where RHS terms are the terms of previous…

  Objective :  To derive 4th order approximations of 2nd order derivative using Taylor tables method and to compare the errors.   Fourth order approximations of the second order derivative using the following programming systems Central difference Skewed right sided difference Skewed left sided difference…