Week 2 - Flow over a Cylinder.

Aim : To write a python program which reads the engine output parameter data file and perform the required parameters. Objective : To read the data from a given data file. To take the file name as an input from user and check whether the file is present or not. To plot a graph between 2 parameter given by user as…

AIM : To fit a given set of data by linear and cubic polynomial OBJECTIVES : To plot linear and cubic fit curves along with raw data points To measure the goodness of the fit THEORY:  Curve fitting : It is the process of formulating a mathematical function that has the best fit for the series of given data…

AIM : To write a program to simulate the transient behaviour of a simple pendulum and to create an animation of it's                  motion. PROBLEM STATEMENT:  An ODE is used to describe the transient behavior of a system. In mechanics and physics, the simple harmonic…

Aim : To create a PV diagram of an otto cycle and to find its thermal efficiency using python. Objective :  To create a PV Diagram of an Otto Cycle using PYTHON. To determine the Thermal Efficiency of the Otto Cycle. Theory :  The otto cycle or air standard cycle consists of four cycles they are process…

AIM :  To simulate an axis-symmetric laminar flow through the constant cross-sectional of the pipe by applying the symmetry boundary condition. To simulating for the mentioned angles i.e for 10, 25, 45 degrees using both symmetry and wedge boundary conditions and validate them with HP equations. Angles to test : `10^o`…

AIM : In this challenge, we 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 : RANKINE CYCLE SIMULATOR  Understand the concept of Rankine cycle by referring to standard thermal engineering text book. Create a Rankine Cycle Simulator using OCTAVE/MATLAB. Your code should calculate the state points of the Rankine Cycle (any type of your choice) based on user inputs.  Then, plot the corresponding…

Aim: Check and solve all the geometries. Assign proper PIDs. Perform meshing with suitable target length and element quality. Take away: One will be able to clean up the CAD using different tools. Assign PIDs. Mesh with appropriate mesh length. Procedure: Geometry clean up: First we have to upload the geometry model.  …

AIM: To clear the geometrical errors and delete surfaces which are unwanted for Surface wrap. After clearing geometry, Merge all the components (Engine, Gearbox and Transmission) and perform surface wrap. Target length for Wrap = 3 mm Take away:  Cleaning up the geometry. Using tool - MERGE. Using…

Aim:  To clean the geometry. Mesh the components part by part. Eliminate off elements present in the mesh. For the given model, check and solve all geometrical errors on half portion and Assign appropriate PIDs. and to perform meshing with the given Target length and element Quality criteria. After meshing the half…

Aim: The aim is to refine the geometry and perform surface and volume mesh. Take Away: By the end of this article you will be familier with, Exploring different option to refine the geometry (fill hole, new faces, creating hot points etc). Meshing each component individually for refined and mesh where ever necessary. INITIAL…

Aim: To perform topology clean up and mesh the geometry with three different mesh length elements. Take away: By the end of the discussion one will be able to, Get familier with different tools to clean the geometry. Use different size mehs elements and figure out which is better for capturing the physics. CASES: Case…

Aim: To carry out combustion simulation and observe the changes with addition of water in the combustion. Theory: Combustion usually takes place with the ignition of fuel in presence of air. This is global reaction. There are intermediate reactions taking place. If we know the rate of forward and reverse reaction of these…

Aim: To understand the flow through the valve and calculate the flow parameters required to estimate the difference in valve lift. Objective: To simulate gate valve. Estimate flow parameters. To carry out parametric study. Gate Valve: Gate valves are used to shut off the flow of liquids rather than for flow regulation.…

Aim: To perform a simulation on cyclone separator and understand how particles are separated. Objective:  To carry out a CFD simulation on cyclone separator. Effect of different particle size seperation efficiency with constant velocity. Effect of different velocities on same particle size separation efficiency.…

Aim: To understand the concept of Conjugate Heat Transfer (CHT) Analysis. Objective: To perform a CHT analysis in Graphics Card and to monitor the effect of velocity (Reynolds Number) on the heat transfer. Heat Transfer Coefficient: Empiricle Coorelation:  Reynolds Number: `Re=(U_infty*rho*L_c)/mu` Prandtl Number: `Pr=(C_p*mu)/k`…

Aim : Tte aim is to understand the Rayleigh taylors instability phenomena and how it takes place.Objective :Some practical CFD models that have been based on the mathematical analysis of Rayleigh Taylor waves.Explain how these mathematical models have been adapted for CFD calculations.Perform the Rayleigh Taylor instability…

Aim : To run simulation to anlyse Conjugate Heat transfer in Exhaust port. Objective : To understand why and where a CHT analysis is used. Run the CHT simulation using different turbulence model and justify results. Introduction :  The Conjugate Heat Transfer (CHT) analysis type allows for the simulation of heat…

Aim : To run External flow simulation over an Ahmed body, Describe Ahmed's body and its importance,Explain the reason for the negative pressure in the wake region,and Explain the significance of the point of separation. Objective : The objective of this project is to determine the aerodynamic forces on the Ahmed…

Aim : To simulate the flow over a cylinder and explain the phenomenon of Karman vortex street. Objective : Part-1 : Simulate the flow with the steady and unsteady case and calculate the Strouhal Number for Re= 100. Part-2 : Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds number to 10,100,1000,10000…

 AIM : Set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 36C and the cold inlet is 19C. Use both the K-epsilon and K-omega SST models for the first to get project judgement about each method, later use the most suitable model for further simulations. Simulate each…

What is Finite Volume Method(FVM), write down the major differences between FDM and 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. Explanation : In computational fluid dynamics(CFD) there are three commonly used numerical…

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

Objective : To simulate the isentropic flow through a Quasi 1D subsonic nozzle by deriving both the conservation and non conservation forms of the governing equations and solve them by implementing the MacCormark's technique using Mathlab. Problem statement : Determine the steady stste temperature distribution for the…

AIM : The main aim of the challange is to solve steady and unsteady state 2D heat conduction equation by using the iterative techniques such as Jaobi method, Gauss-seidal method & Successive over-relaxation method for both implicit and expliit scheme using mathlab. The assumption for solving the problem : Assume that…

1. CENTRAL DIFFERENCING : Deriving the central differencing for the fourth order approximation of the second order derivative of a function using Taylor's method. To find the central differencing we need to find the number of nodes required to evaluate the second order accurate. Number of nodes N = P+Q-1 where, P = order…

1. To implement the control logic of a washing machine using stateflow in simulink. a. If the power supply is available, the system gets activated. b. If the water supply is not available,stop the process & indicate through LED. c. Soaking time should be 200s followed by washing time of 100s. d. Then rinsing happen…

1. MAKING A SIMULINK MODEL OF A DOREBELL USING A SOLENOID BLOCK : Door bell model 1. Pulse generator : The pulse generator is used to creat square wave pulses at regular time intervals. The block waveform parameters ampitude, pulse width, period and phase delay, determine  the shape of the output waveform. 2. Switch…

Wheel arch : Wheel arch is the semi circular part of the fender positioned above the wheel of the vechile. The design of the wheel arch of fender should be such that it must shield wheels and protect both passengers and pedestrains from projection of water, mud, stones. For the vechile to has its use permit in different…

Objective : Design hood outer panal,inner panel and reinforcements with the given outer hood skin, master section and design parameters. Introduction : The hood or bonnet is the hinged cover over the engine of motor vechiles. Hoods can open to allow access to the engine compartment for maintenance and repair. In design…

UNDERBODY COATING : Underprovides body coating is a sprable coating, which protects the undersurface of the vechile from corrossion. Underbody coating provides longterm protection from corrosion to car's underbody and it also protects the inner parts like internal body panels, frame rails and other inner cavities. Protecting…

Benching marking : Benchmarking in business means measuring your companies quality, performance and growth by analysing the process and producers of others. If you believe there's something that can be improved with in your organization. Benchmarking involves a structured comparision between similar products, services…

Aim : To write the Mathlab code for parsing the NASA thermodynamic data file and extract 14 coefficients of thermodynamic properties like specific heat, enthalpy and entropy for all the species in the given data file. And also to find the molecular mass of each species and finally to plot the graph of specific heat, enthalpy…

Aim : To optimise the stalagmite function and to find the global maxima of the function. Introduction :  The genetic algorithem is a methode for solving both constrained and un comstrained optamization problems that is based on nature selection. The genetic algorithem repeatdly modifies a population of individual…

 Aim : To creat a animation of simple pendulum by using second order differential equation. A nd also to plot the graph between angular velocity and displacement. Theory : A simple pendulum is a weight suspended from a pivot,so that it can swing freely.               It consists…

Aim : To similate the forward kinematis of a 2R robotic arm by using math lab. Theory : Robotic arms are line like a human arms and we can rotate these arms by providing a joints to the arms. Arms are also called as links. And we can us use as many as links we want by using joints. But in this project we are…