LS-Dyna-2-Static Analysis

Title: Thermodynamic Curve Fitting Analysis: A Python-Based Approach. Aim: The aim of this study is to analyze thermodynamic data and model the relationship between temperature (T) and specific heat capacity (Cp) using curve fitting techniques implemented in Python. Objectives: To fit mathematical models to experimental…

Aim: To simulate the motion of a damped pendulum and visualize its behavior using Python. Objective:  To understand the dynamics of a damped pendulum and observe its motion over time. Problem Statement: To simulate the motion of a damped pendulum with given parameters and visualize its displacement,…

Aim: To model and analyze the thermodynamic processes of an Air Standard Cycle using Python Problem Statement:  To create PV Diagram To calculate the thermal efficiency of the engine. Python Code: import math import matplotlib.pyplot as plt # Input parameters bore = 0.069 stroke = 0.0768 compression_ratio = 8…

 Aim  : FVM Fundamentals 101    1. Derive the expression for the ∂f∂x∂�∂� for a forward difference of second order   The Taylor expansion of  `f _(i + 1)` is given by: `f _(i + 1) = f _(i) + f ' _(i) Δ x + f ' ' _(i) Δ x^ 2/ (2 !) + f ' '…

Aim : To simulate an incompressible-laminar-viscous flow through the backward facing step geometry using a transient simulation. Case 1 - Simulate the flow without using any grading factor (i.e., GF = 1) Case 2 - Simulate the flow with grading factor of 0.2. The cells should be finer near the walls (including the step…

Aim : Creating a Test Case in OPENFOAM  Objective: 1. Create a.cpp file, starting with:   #include "fvCFD.H" int main( int argc, char *argv[] ) { Foam::argList::noBanner(); Foam::argList args(argc, argv); ... }   Solution :   First of all we need to copy the working directory in our run folder…

Compiling C++ libraries   1)    Copy the solver DPMFoam from the lagrangian library ( $FOAM_SOLVERS ) into your run folder ( $FOAM_RUN ) (use visual studio) Use wmake libso to compile the shared library associated with this, after making the appropriate changes Where is the resulting .so file…

                                                  FVM Literature Review ⇒ What is Finite Volume Method?  A discretization technique known as the finite volume method (FVM) is based on the integral form of the PDE that needs to be solved (such as the conservation of mass, momentum, or energy). A finite volume (or cell)…

Aim : To simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle using the MacCormack's technique for conservation and non-conservation forms of the governing equations. Introduction :  Converging-Diverging Nozzle is extensively used in a wide range of industrial applications ranging from steam turbines…

Aim : To perform Linear Static Analysis Objective : To perform Linear Static Analysis on a Bracket.   Geometry Preparation 1. Importing our Cad Model -> Units -> meters   Mesh Preparation FEM -> Element & Mesh -> Auto Mesher -> Mesh Type -> Tria -> Element Size -> 0.001 Material Assignment…

Aim : To perform Steady state analysis & Transient State Analysis     1. For Steady State Case clear all close all clc %% Inputs L = 1; %% Domain Length nx = 50; %% Grid Points omega = 1.1; %% Relaxation Factor error = 9e9; %% Error tol = 1e-4; %% Tolerance Value ct = 0; ny=nx; %% Calculations x=linspace(0,L,nx);…

Aim : To derive the following 4th order approximations of the second-order derivative using 1. Central difference 2. Skewed right-sided difference 3. Skewed left-sided difference    Central Difference Scheme For Central difference scheme, Order of Accuracy(P) = N (No of orders in the stencil) - Q+1 ( Order…

Aim : To Perform Mid Surface Extraction. Objective : To Perform Mid Surface Extraction Using Offset & Skin Command Geometry Preparation :  Import Raw Cad Geometry Hit Topo on the Geometry(It will help us to join the coons properly) Checking Thickness of different edges -> which is 4 mm. As the 3rd dimension…

Aim : To Perform Meshing Of Washer Objective : To Perform Meshing of Washer applying zone cut and using meshing guidelines using dia = 1.5 to 2 for 1st case and dia = 1.75 to 2 for 2nd case Geometry Preparation Import our Cad Geometry  After importing the raw geometry, the first thing we should check are the units.…

Aim : To create and plot Matlab codes  for different Drive Cycle Plots Objective : To create and plot Matlab codes for Nine different Drive Cycles in a 3 x 3 Matrix. Introduction : A drive cycle is typically represented by a series of data points which plots vechile speed against time. Driving cycles are produced…

Aim: To perform the heat transfer analysis on the 4x2 cylindrical lithium ion battery with heat generation boundary conditions for different cases and compare the results. Objective:  Explain why battery cooling is needed. And give a brief description about various techniques forbattery cooling. Perform Mesh…

Aim : To perform a steady-state conjugate heat transfer analysis on graphics card Objectives : To perform a steady-state conjugate heat transfer analysis on graphics card and  Run the simulation by varying the velocity from 1m/sec to 5m/sec for at least 3 velocities and discuss the results. Find out…

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…

Aim : To perform External flow simulation over an Ahmed body Objective : To perform External flow simulation over an Ahmed body for the velocity of 25 m/sec with the default air properties in fluent.   Q1. Describe Ahmed's body and its importance Introduction of Ahmed Body Ahmed Body is a bluff body( a generic…

Aim : To perform a parametric study on the gate valve simulation Objective : To 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…

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 Rayleigh Taylor Instability Simulation Objective : To Perform Rayleigh Taylor Instability Simulation with  air and water with base mesh size as 0.5 mm and with refined mesh.  water and user defined material(density = 400 kg/m3, viscosity = 0.001 kg/m-s) with refined mesh. Theory : Rayleigh…

Aim : To Perform CHT Analysis on Exaust Port. Objectives : To perform CHT Analysis on Exaust Port with a velocity of 5m/s with air as the working fluid. 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…

Aim :  To set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 36 °C and the cold inlet temperature is 19 °C. Objective :   To set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 36 °C and the cold inlet temperature is 19…

Aim : To perform CFD Meshing for Tesla Cyber Truck Objective : To perform external aerodynamics analysis on the given geometry Procedure :  The first thing we need to check after importing the CAD Geometry is Units.  Tools -> Settings -> Resolution/Tolerance/Units We can observe that the geometry is…

    Geometrical Cleanup Of BMW M6  After importing the raw geometry, the first thing we should check are the units. We can perform this step under Tools -> Settings -> Resolution/Tolerance/Units Then we should check for resolution (perimeter). If the raw geometry has distortion, it can be…

AIM : To perform Surface Wrap on the Given Geometry  Objective : To perform Surface Wrap one the given geometry using target length for wrap as 3 mm. Surface Wrap  is a meshing technique that we perform on very complex geometrical structures when we don't have time on our     hands. We are only concerned with the geometrical errors on the external surface, not the internal ones.…

Aim - To Perform Surface Meshing And Volumetric Meshing for the given Geometry Objective -  To Perform Geometrical Errors CleanUp, Surface Meshing & Volume Meshing by setting up different target length as per PIDs given below Blade stage-1 = 1 mm Blade stage-2 = 1 mm Impeller = 2 mm Shaft rotor = 1 mm Turbo…

Aim: To prepare a detailed report on the geometrical errors cleanup & meshing of the pressure valve. Objective: To prepare a detailed report on geomtrical errors cleanup & meshing of pressure valve using three different target lengths of 1 mm, 3 mm & 5 mm and using Element type = Tria. Introduction : …