Week 7 - Simulation of a 1D Super-sonic nozzle flow simulation using Macormack Method

AIM: To perform a steady-state conjugate heat transfer analysis on a model of a graphics card. PROJECT 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.…

AIM: To mention some practical CFD models that have been based on the mathematical analysis of Rayleigh Taylor waves and explain how these mathematical models have been adapted for CFD calculations. To perform the Rayleigh Taylor instability simulation for 2 different mesh sizes with the base mesh being 0.5 mm and…

AIM: To answer the following questions 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 wall/surface heat transfer coefficient on the internal solid surface & show the velocity & temperature contours…

AIM: To describe Ahmed's body and its importance. To explain the reason for the negative pressure in the wake region.  To explain the significance of the point of separation.  PROJECT OBJECTIVES: 1. To plot Velocity and pressure contours.  2. To plot the drag coefficient for a refined case. ( For velocity…

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

AIM: To set up steady-state simulations to compare the mixing effectiveness when hot inlet temperature is 360C & the Cold inlet is at 190C using k-epsilon and k-omega SST model for the following model. Case 1  Short mixing tee with a hot inlet velocity of 3m/s. Momentum ratio of 2, 4.  Case 2  Long…

AIM: To describe Finite Volume Method(FVM) and the major differences between FDM & FVM. To describe the need for interpolation schemes and flux limiters in FVM.  SOLUTION: Finite Volume Method(FVM): FVM is in common use for discretizing computational fluid dynamics equations. The finite volume method (FVM) is…

AIM:To simulate an incompressible-laminar-viscous flow through the backward facing step geometry by performing transient simulation in OpenFOAM.To simulate the flow without using any grading factor (i.e., GF = 1).To simulate the flow with grading factor of 0.2. The cells should be finer near the walls.SOLUTION:Domain…

AIM: To simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle by both the conservation and non-conservation forms of the governing equations using the MacCormack's technique. OBJECTIVES OF THE PROJECT: To show the following plots inside your report1. Steady-state distribution of primitive…

AIM: To solve the 2D heat conduction equation by using the point iterative techniques for 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 By implementing the following methods to solve the implicit equations. 1. Jacobi 2.…

AIM: To  Derive the following 4th order approximations of the second-order derivative.  1. Central difference 2. Skewed right-sided difference 3. Skewed left-sided difference To write a program in Matlab to evaluate the second-order derivative of the analytical function exp(x)*cos(x) and compare it…

AIM: To calculate the energy required for braking for a defined driving cycle. To explain why electric motor can’t develop braking torque at high speed similar to starting and how electric and mechanical brakes are coordinated. To make a MATLAB program which plots contour of given motor speed, torque and efficiency…

AIM: To 1. A. Explain a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’.     B. Comment on the armature current shoot-up from the scope results.     C. Refer to the help section of ‘The Four-Quadrant Chopper DC Drive (DC7) block’. Compare it with the…

AIM: To list the types of power converter circuits are employed in electric and hybrid electric vehicle. To find the EV steady state speed if duty cycle is 70% for the following Electric Vehicle's powertrain with 72V battery pack in shown in the diagram below. Motor and Controller Parameters:    …

AIM: To list the difference between the mapped and dynamic model of engine, motor and generator and explain how the model type can be changed. To explain how the model can be calculated in miles per gallon and factors that are considered to the model fuel flow. To run the HEV ReferenceApplication with WOT drive cycle…

AIM:           To Use ADVISOR tool and simulate the following  1.   To conclude the observations for EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, whether the vehicle can travel for 45 km with FTP drive cycle. 2.   To change the battery…

AIM: To Implement control logic of a “washing machine” using Stateflow as per given sequence:  If the power supply is available, the system gets activated  If the Water supply is not available, stop the process & indicate through LED Soaking time should be 200s followed by Washing time of 100s.…

AIM:  To make a Simulink model of a door bell using solenoid block.  To use a thermistor to sense the temperature of a heater and turn ON and turn OFF the fan.  OBJECTIVE OF THE PROJECT:  To create a situation where the switch is closed for 2 seconds and then released and observe the physical…

AIM:              To make a detailed study on how the carbon content in the fuels such as Paraffins, Olefins and Alkynes influences the engine performance characteristics like Stoichiometric Air-fuel ratio, brake specific fuel consumption, indicated specific fuel…

AIM: To create a Rankine Cycle Simulator using MATLAB and to make T-s and h-s plots for the given set of inputs. GOVERNING EQUATIONS: Dryness fraction: [x] x = (s2 - sf)/(sg - sf) where,      s2 = Entropy at the exit of the turbine [kJ/kg]       sf  = Saturated liquid Entropy…

AIM:                 To write a function that extracts the 14 co-efficients and calculate the enthalpy, entropy and specific heats for all the species in the NASA Thermodynamic data file and to calculate the molecular weight of each species and display…

AIM:                 To understand the concept of genetic algorithm and to write a code in MATLAB to optimise the stalagmite function and find the global maxima of the function. GOVERNING EQUATION:                …

AIM:                  To write a program that solves the ODE which represents the equation of motion of a simple pendulum with damping.   GOVERNING EQUATION:             d2θ/dt2…