Week 6 - CHT Analysis on a Graphics card

AIM:Transient state simulation for flow over a throttle body.Theory:In steady state we consider the properties are not changing with time but in case of Transient flow the properties are changing with time.N-s Equation:Scale :Scale the the model to decreases mash count by 0.1.Run Parameters:Transient solver used so the…

AIM :- Run a Simulation to analyze air flow through the Chenal and find out velocity contour, pressure contour and mass flow rate through the different mass size.Flow through a channel: When a fluid enter into the pipe there is a Entrance length and Fully developed flow .The entrance length create is due to the free…

AIM of the Experiment:Here we analyze effect of the flow on the throttle valve in a elbow pipe. a A throttling valve is a mechanical device that controls the flow of a fluid by restricting the flow and creating a pressure drop. It's also known as a control valve or throttle control valve. A throttling…

Back Ward facing step: It is 2D flow analysis of fluid flow in pipe with sudden enlargement. By this we can analysis that reconnect distance and recirculation region.Here we analyze for 3 different mash size.dx = dy = dz =2e-3mdx = dy = dz =1.5e-3mdx = dy = dz =1.0e-3m (If this is too much for your PC, use 1.2e-3m) Loses…

Hagen- Poiseuille's equations for the fully developed flow:

The Finite Volume Method (FVM)The Finite Volume Method (FVM) is one of the most versatile discretization techniques used in CFD. Based on the control volume formulation of analytical fluid dynamics, the first step in the FVM is to divide the domain into a number of control volumes (aka cells, elements) where the variable…

Objective: 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.  Theory: We consider the steady, isentropic flow through a convergent-divergent nozzleas…

Objective: Steady state analysis & Transient State Analysis of 2D heat conduction equation. 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 Theory: Steady heat conduction equation is: `(del^2T)/(delx^2)+(del^2T)/(dely^2)=0`…

 Objective: Derive the following 4th order approximations of the second-order derivative of exp(x)*cos(x) .  1. Central difference 2. Skewed right-sided difference 3. Skewed left-sided difference Theory: f(x)=exp(x)*cos(x) f'(x)=-exp(x)*sin(x)+exp(x)*cos(x) f''(x)=-2exp(x)*sin(x) Then absolute value is -9.620954761930703…

AIM:-  Perform a steady-state conjugate heat transfer analysis on a model of a graphics card. Objective: Run the simulation by varying the velocity from 1m/sec to 5m/sec for at least 3 velocities and discuss the results. Find out the maximum temperature and heat transfer coefficient attained by the processor. Prove that…

The Rayleigh–Taylor instability, or RT instability:  The Rayleigh–Taylor instability, or RT instability is an instability of an interface between two fluids of different densities which occurs when the lighter fluid is pushing the heavier fluid.…

CFD / CONJUGATE HEAT TRANSFER ANALYSIS The CHT approach has an advantage over FE thermal analyses in that wall heat transfer coefficients and their local variations on surfaces are directly calculated within the model rather than based on simplified empirical calculations. The CHT approach therefore has benefits…

AIM:-External flow simulation over an Ahmed body. Theory:- What is ahmad body:Flow around the Ahmed body is a well-known CFD benchmark for external aerodynamics. The Ahmed body is a generic car model first proposed by [Ahmed et al., (1984)]. All ground vehicles can be termed as bluff bodies moving close to the road…

AIM:-Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street. Theory: The Reynolds number is the ratio of inertial forces to viscous forces. The Reynolds number is a dimensionless number used to categorize the fluids systems in which the effect of viscosity is important…

Theory: 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.  Case 1  Short mixing tee with a hot inlet velocity of 3m/s. Momentum ratio of 2, 4.  Case 2  Long mixing tee with a hot inlet velocity of 3m/s.…

AIM: CFD Meshing for Tesla Cyber Truck Theory:   This is incial job. Then topo the whole geometry.    Here these face are missing.  creat all missing faces.       Delete all the extra extra face.   delete all the extra face,and creat missing face.   Two…

Objective:Surface wrap on Automotive Assembly. Theory:  This is the incial degine.  delete all the nonconnected surface. Then hide all major pids ,To delete all the unnessury ring like structures.   After delete all the unnecessary ring like structure some single cone arise.     …

AIM:- CFD Meshing for BMW car. Theory: we have to delete half of the car,because the car was symmetric about traverse axis. So we delete half of the car except logo.   Then check all the error and the following are geometrical error and intersection error.    These are errors in the grill.   …

Objevtive :-CFD meshing on Turbocharger . Theory:- Here the degine have 1-overlap PID                                 2-Intersection error                             …

AIM:- Surface meshing on a Pressure valve THEORY:-                 Degine is with the geometrical error                                 Wire mash diagram  To check the geometrical error …

AIM - Rankine cycle Simulator Theory: Rankine cycle: The Rankine cycle or Rankine Vapor Cycle is the process widely used by power plant such as coal fired engine or nucular powered  engine. In this mechanism, a fuel is used to produce heat within a boiler, converting water into steam which…

AIM-: Parsing NASA thermodynamic data . What is file parsing: Parsing is nessery because diffrent application need tha data to be in deffrent form .parsing allows transform of data in a way that can be understand by secific softwear . Step followed to read the data in 'NASA thermodynamic data': 1.file reader . 2.extraction…

Objective-Genetic Algorithm What is GA :- GA is a search based optimization techniques, which is based on genratic and natural selection processes .It is ferquently use on optimal and near optimal solution. Types of GA study: 1.bounded study 2.Unbounded study 3.bounded study with population size syntex: x=ga(fun,nvars,A,b,Aeq,beq,lb,ub,nonlocn,options)…

AIM-2R Robotic Arm Challenge . Theory:-   Here x0,y0 is the incial value . theta is the angle of first arm . x1,y1 is the joint of two arm . x2,y2 is the end point 2nd arm . here `x1=l1*cos(theta1)` `y1=l1*sin(theta1)` `x2=x1+l2*cos(theta2)` `y2=y1+l2*sin(theta2)` CODE IN MATLAB: clear all close all clc %inputs l1=1; l2=0.5;…

AIM :-Solving second order ODEs Theory:- This ODE represents the equation of motion of a simple pendulum with damping              `(d^2(theta))/dt^2+(b/m)*(d(theta))/dt+g/lsin(theta)=0`                `theta1=(d(theta))/dt`      …