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# RANS derivation and analysis

Obejective :- 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 is it different from molecular viscosity? What is turbulence? In fluid dynamics, turbulence or turbulent flow…

Project Details

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Read more Projects by Aman Kumar (37)

MBD Simulation on IC Engine Valve Train

Objective:

Objectives :- To create a model of the CAM and its associated parts for the IC Engine valve train then run an MBD simulation on that. Run the simulation using the below parameters             Obtain the plot of Valve Lift.  The contact force between  Cam and Push Rod Pushrod and…

06 May 2020 12:43 AM IST

• MBD

Meshing a interior plastic component of a side door

Objective:

Objective :- To perform geometry clean up for Side-door plastic component model. Extract the FE structure or mid-surface by all the three method discussed below Take the mid-surface manually. Take the mid-surface using auto mid-surface. Use the mid-surface using combination of both auto mid-surface and manuall mid-surface.…

02 Dec 2019 05:07 AM IST

Combustion simulation on a combustor model using FLUENT

Objective:

Objective :- Explain about the possible types of combustion simulations in FLUENT. To perform a combustion simulation on the combustor model. Plot the variation of the mass fraction of the different species (CO2, H2O, CH4, N2, O2 and NOx emissions). Introduction :- Combustion models for CFD refers to combustion models…

23 Nov 2019 04:40 AM IST

Parametric Study on Gate Valve

Objective:

Objective :- 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. Obtain the mass flow rates at the outlet for each design point. Show the cut section view for all the design points. Show the velocity contour…

12 Nov 2019 11:19 PM IST

Meshing Hood for Structural Analysis

Objective:

Objective :- To Clean up the Hood geometry and perform hemming on it. And mesh the geometry with the Target element size of 5 mm Set Quality criteria for shell as shown in table below       What is Hemming ?      Hemming is a forming operation in which the edges of the sheet are folded or…

08 Nov 2019 03:26 AM IST

Cyclone Separator

Objective:

Objectives :- To perform an analysis on the given cyclone separator model and apply four different boundary condition types at the inlet i.e. reflect, trap, escape and wall-jet. Varying the number of particles through the inlet and run the simulation for 3 cases using Reflect as Inlet boundary condition. Introduction :-…

11 Oct 2019 12:34 AM IST

Gearbox Sloshing effect

Objective:

Objectives :- To perform the simulation for two clearances of the gears and also using a different fluid. Gearbox Sloshing Effect :- For this challenge we are running 4 cases of gearbox with two different clearances and with the two different fluids and observe the flow pattern of the fluid inside the gearbox. 3D Model…

10 Oct 2019 12:00 AM IST

Meshing on the BMW M6 model

Objective:

Objective :-  To cleanup the Topological error on a given BMW M6 model using ANSA. To mesh the model with different mesh size. To cleanup the mesh quality error. Create wind tunnel for the CFD simulation. Step that are followed by me to cleanup the geometry error and then meshing a BMW M6 model using ANSA :- Step…

09 Oct 2019 08:37 AM IST

Meshing on Turbocharger Model

Objective:

Objective :-  To cleanup the Topological error on a given turbocharger model using ANSA To mesh the model with different mesh size Step that are followed by me to cleanup the geometry error and then meshing a Turbocharger model using ANSA :- Step 1 : Import the model Import the Turbocharger model to the ANSA. File…

20 Sep 2019 12:10 AM IST

CHT analysis on an Exhaust manifold

Objective:

Objectives :- To perform a CHT analysis on a model of an exhaust manifold. Perform a CHT analysis on exaust manifold with 2 different sizes of mesh and compare the results. Show the velocity, temperature and heat transfer coefficient plots and explain if refining the mesh produced any changes to the results. Describe why…

16 Sep 2019 07:33 AM IST

Conjugate Heat Transfer Analysis on a graphics card

Objective:

Objectives :- To perform a steady state conjugate heat transfer analysis on a model of a graphics card. Consider the appropriate materials for the simulation. 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…

14 Sep 2019 01:56 AM IST

Rayleigh Taylor Instability

Objective:

Objectives :- To Perform the Rayleigh Taylor instability simulation for 3 different mesh sizes with the base mesh being 0.5 mm. Compare the results by showing the animations Rayleigh-Taylor instability :- Rayleigh-Taylor instability (RTI) is the interpenetration of materials that occurs whenever a light fluid pushes on…

10 Sep 2019 11:52 PM IST

Ahmed Body

Objective:

Objectives :- Describe about Ahmed body and its importance. Perform a grid dependency test on Ahmed body setup by varying the mesh appropriately. Explain the variation in pressure as to why it goes negative. What is Ahmed body and its importance?   The Ahmed Body was first created by S.R. Ahmed in his research “Some…

04 Sep 2019 01:35 AM IST

RANS derivation and analysis

Objective:

Obejective :- 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 is it different from molecular viscosity? What is turbulence? In fluid dynamics, turbulence or turbulent flow…

11 Aug 2019 11:57 AM IST

Sector simulation on a CAT3410 Diesel engine

Objective:

Objectives :- To perform simulation on CAT3410 diesel engine with two different types of piston bowl profiles. Omega piston Open W piston Characterize the emissions (Soot, Nox and UHC) Create cut-plan animations showing Soot, Nox and UHC and compare them between the omega and the open-w pistons. Compare the imep and power…

11 Aug 2019 11:57 AM IST

Simulation on SI8 Port Fuel Injection Engine

Objective:

Objectives :- Setup a case for full Hydro simulation of SI8 Port Fuel Injection Engine in CONVERGE. Post process the result in paraView. Find out the following with the help of inputs provided in the challenge and the simulation result.   What is the compression ratio of this engine? Why do we need a wall heat transfer…

28 Jul 2019 03:05 AM IST

Conjugate Heat Transfer Simulation

Objective:

Objectives :- Setup a flow simulation through a pipe. Run grid dependence test on 3 grids and show that the outlet temperature converges to a particular value. Show mesh (i.e surface with edges). Post process the results and show pressure and velocity contours. Plots for velocity, pressure,mass flow rate and total cell…

19 Jul 2019 12:38 AM IST

2R Robotic arm animation

Objective:

% forward kinematics robotic arm movie close all clear all clc % inputs l1 = 1; l2 = 0.5; theta1 = linspace(0,90,45); theta2 = linspace(0,90,45); ct = 1; for i = 1:length(theta1) THETA1 = theta1(i); for j = 1:length(theta2) THETA2 = theta2(j); x0 = 0; y0 = 0; x1 = l1*cosd(THETA1); y1 = l1*sind(THETA1); x2 = x1 + l2*cosd(THETA2);…

19 Jul 2019 12:38 AM IST

Planetary Gear Motion Analysis

Objective:

Objectives :-          To run the motion analysis on the planetary gear with a sun gear, a ring gear, a carrier and four planet gears. Components used to Motion analysis on planetary gear :- Ring gear - 1 Sun gear - 1 Planet gear - 4 Carrier - 1 Input Parameters :-    1) Ring Gear…

19 Jul 2019 12:38 AM IST

BlockMesh

Objective:

Objectives :- Create a 3D diagram of the given specification by use of blockmeshdict file. Use the icoFoam solver to simulate the flow through a backward facing step. Creating multiple meshes and will be comparing the results obtained from each mesh. How does the velocity magnitude profile change as a function of mesh…

19 Jul 2019 12:38 AM IST

Flow over a cylinder

Objective:

Objectives:- To Simulate the flow over a cylinder for different Reynolds number. Inputs :- Diameter of cylinder = 15mm Length of cylinder = 50mm Length of the Domain = 270mm Fluid flow over the cylinder is Air Reynolds Number (Re):- The Reynolds number is an important dimensionless quantity in fluid mechanics…

19 Jul 2019 12:38 AM IST

Transient simulation of flow over a throttle body

Objective:

Objectives :- Transient state simulation of fluid flow over a throttle body in converge studio. Show mesh (i.e surface with edges) Post process the results and show pressure and velocity contours Plots for velocity, pressure,mass flow rate and total cell count. Case setup :- Import the stl file format of elbow and placed…

19 Jul 2019 12:38 AM IST

Rankine cycle Simulator

Objective:

RANKINE CYCLE SIMULATOR INTRODUCTION :- The Rankine cycle is the fundamental operating cycle of all power plants where an operating fluid is continuously evaporated and condensed. The selection of operating fluid depends mainly on the available temperature range.  Basic Rankine Cycle:- The Rankine cycle operates in…

19 Jul 2019 12:38 AM IST

Simple Pendulum

Objective:

Objectives :-    Write a program that will simulate the pendulum motion by Ordinary Differential Equations. Formula used :-   Given the second order ordinary differential equation                     Here,    g = gravity in m/s2,    L…

19 Jul 2019 12:38 AM IST

Simulation of Flow through a pipe in OpenFoam part-2

Objective:

Objectives :- Write a Matlab program that takes an angle as input and generates a blockMesh file for the given angle. Angles to test 10,25,45 Show that the velocity profile is fully developed. Compare the above results and discuss. Given Inputs :- Reynolds number(Re) = 2100 Working fluid = Water Solver = icoFoam Density…

19 Jul 2019 12:38 AM IST

Simulation of Flow through a pipe in OpenFoam

Objective:

Objectives :- 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.…

19 Jul 2019 12:38 AM IST

Geneva Mechanism

Objective:

Objectives :-     1) Create 3D models for driver and driven wheels of Geneva Mechanism.     2) Perform motion analysis by rotating the driver wheel at 10rpm and 20rpm.     3) Create a plot of contact force between Driver and Driven wheel.     4) Create a plot of Angular…

19 Jul 2019 12:38 AM IST

2D heat conduction

Objective:

Objectives :-         Solve the 2D heat conduction equation by using the point iterative technique for both Steady state analysis & Transient State Analysis in all the following method. Jacobi Gauss-seidel Successive over-relaxation Given Assumption :-     1) Assume that the domain is…

19 Jul 2019 12:38 AM IST

Prandtl Meyer Shock problem

Objective:

Objectives :- What BC\'s are typically used for shock flow problems What is a shock wave? Describe the physics behind shock waves. Show the effect of SGS temperature value on cell count and the shock location Plots for velocity, pressure,mass flow rate and total cell count. What BC\'s are typically used for shock flow…

19 Jul 2019 12:38 AM IST

Naca Airfoils

Objective:

Objectives:- Compare the lift and drag force for an angle of attacks 0,2,4,6,8,10 flow over a NACA0017 airfoil. Assumption:- Airfoil considered for the study is \"AG24 Bubble Dancer DLG by Mark Drela (ag24-il)\" Link for the airfoil data:- https://drive.google.com/open?id=1hcCze31Giy5Z6xU_NXN-HKNFWML8lXJ4 Air…

19 Jul 2019 12:38 AM IST

Shock tube simulation

Objective:

Objectives :- 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. Explain the result. Create an animation of velocity, pressure and mixing of species.  What is Shock tube?     The shock tube is a simple duct…

19 Jul 2019 12:38 AM IST

Taylor table method

Objective:

Objectives :- Derive the following 4th order approximations of the second order derivative         1) Central difference         2) Skewed right sided difference         3) Skewed left sided difference write a program in Matlab to evaluate the second order derivative…

19 Jul 2019 12:37 AM IST

Simulation of a 1D Super-sonic nozzle flow simulation using Macormack Method

Objective:

Objectives :-    Write code solve the 1D supersonic nozzle flow equations using the Macormack Method. Implementing both the conservative and non-conservative forms of the governing equations to solve the 1D supersonic nozzle flow equations. Performing grid dependence test. Write separate functions for conservative…

19 Jul 2019 12:37 AM IST

Parsing NASA thermodynamic data

Objective:

INTRODUCTION Thermodynamic data for individual species is required in many applications involving chemical reactions. For over 50 years the NASA Lewis (now Glenn) Research Centre has been compiling and disseminating thermodynamic data for use in its chemical equilibrium programs. These data, widely used by the thermodynamic…

19 Jul 2019 12:36 AM IST

Simulation on a Piston Assembly

Objective:

Objectives :-    1) To create a model of the piston and its associated parts then run an MBD simulation              on that.    2) Find the linear displacement of piston in three cases:-          a) \"0\" mm Offset of Gudgeon pin…

19 Jul 2019 12:36 AM IST

Centrifugal pump

Objective:

Objectives:-  1) To create a 3D model of Centrifugal pump. 2) To Obtain the relationship between Pressure ratio and mass flow rate. Inputs :-  Dimensions of 3D model of a centrifugal pump Diameter of the suction pipe = 145 mm Diameter of the delivery pipe = 95 mm Diameter of the voulte casing =…

19 Jul 2019 12:36 AM IST

Steady state simulation of flow over a throttle body

Objective:

Objectives :- Steady state simulation of fluid flow over a throttle body in converge studio. Show mesh (i.e surface with edges) Post process the results and show pressure and velocity contours Plots for velocity, pressure,mass flow rate and total cell count. Case setup :- Import the stl file format of elbow and placed…

23 Jun 2019 09:36 AM IST

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