Week 9: Project 1 - Surface preparation and Boundary Flagging (PFI)

      Finite Volume Method (FVM) -   The Finite Volume Method (FVM) is a discretization method for the approximation of a single or a system of partial differential equations expressing the conservation, or balance, of one or more quantities. These partial differential equations…

Aim -     Perform a steady-state conjugate heat transfer analysis on a model of a graphics card. Introduction – Graphic card basically used in computer for the better picture quality. As we see the computer with high graphics defiently deploys graphic system of high voltage, which will give rise…

Aim -     Perform a combustion simulation on the combustor model and plot the variation of the mass fraction of the different species’ in the simulation using line probes at different locations of the combustor. Need to plot for CO2, H2O, CH4, N2, O2, NOx emissions & Soot formation. Introduction…

Aim -  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 and plot the graph. Discuss the results of the mass flow rate and flow coefficient. …

Aim – To perform analysis on cyclone separator and calculate the separation efficiency and pressure drop.   Introduction – Cyclone separator are devices which employ centrifugal force by spinning gas stream to separate the particle from the gas carrier. It is normally use to separate the particle of size…

Aim – To Simulate the Rayleigh Taylor instability using two different fluids for different mesh size.     Introduction – The Rayleigh Taylor is phenomena that occur at the interface of two fluids of different density. In this heavier fluid pushes the lighter fluid. Examples include the behaviour of…

Aim – T o study the Phenomena of conjugate heat transfer. And flow analysis through engine exhaust pipe.   Introduction –  Conjugate Heat Transfer (CHT) – It is analysis type allows for the simulation of heat transfer between solidand fluid domains by exchanging thermal energy…

Aim – To study the flow over the Ahmed body. And its study for different mesh size.   Introduction - Describe Ahmed's body and its importance. Ahmed body is simplified car body which is basically used in automotive industry for study the impact of fluid flow on body. It helps to find the wake flow around the…

Aim -     Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street.  Introduction –   Vortex shedding –   Vortex shedding is an oscillating flow that takes place when a fluid such as air or water flows past a body at certain velocities, depending on the size and shape of the body. Strouhal Number-…

Aim – To study the flow for hot and cold air flow through mixing tee. We will do study for the short and long tee joints. Will do study of temperature and velocity contour. Case – 1    Short mixing tee with a hot inlet velocity of 3m/s. Model – K-Elipson Model  K - omega Geometry :…

Aim - Literature review - RANS derivation and analysis   RANS Equation – RANS is a numerical method to model a turbulent flow where in the flow quantities are decomposed into their time-averaged and fluctuating components. This process is called Reynolds decomposition.     Reynold's stress - The Reynolds…

Q1. What is the Compression ratio for the engine? CR of engine is ratio of total volume to the clearance volume. From volume graph we can calculate the CR. Total volume –  5.74 x 10 ^-4 m3 Clearance volume-  5.723 x 10 ^-5  m3 CR-  5.741 x 10 ^-4 / 5.23 x 10 ^-5 CR- 10.02   Q2. Modify the…

Aim  - This is full hydro PFI model in which we will be finding these following parameters - compression ratio of this engine Why do we need a wall heat transfer model? Why can't we predict the wall temperature from the CFD simulation? Combustion efficiency of this engine Determine the power and torque for this engine.…

Aim-   Prandtl Meyer Shock problem Introduction –   Shock flow boundary conditions- Boundary value is differential equation with set of constraint is known as boundary condition. The solution to boundary value is solution to the differential equation which also satisfy the boundary equation as well.…

    Aim -    To do study the two different type of pistons omega and open w type pistons.   Our objective is to-   1. Run simulations with both these pistons Characterize the emissions (Soot, Nox and UHC) Compare the imep and power values graphically. Geometry  Set up –…

Aim - Surface preparation and Boundary Flagging (PFI) Introduction- The purpose of task is to do boundary flagging and surface preparation for the given geometry. After that we will run the simulation for no hydrodynamic case setup and see the motion of piston and valves in cylinder for better understanding. Steps –…

Aim-   Shock tube simulation project Introduction – In this task we will study the shock tube effects in real world of fluid flow. Shock tube phenonmena is basically used for study of shock wave. which is created when fluid enter the from high pr to low pr. region. In shock tube the high pr and low pr zone…

Aim-   Flow over a backward facing step Introduction – In this task we will learn about importance backward facing step phenomena in field of CFD. Sudden change in in pipes will impact the fluid flow which can be disconitnuity in fluid stream , bubble formation and chnages in some paramteres contours. In…

Aim-   Channel flow simulation using CONVERGE CFD   Introduction – From this task we will learn the basics to run the simulation and its analysis. we will be runing the cases for three grid szes and compare there contours, mesh and other important parameters.   Steps – Geometry Define…

Aim-   To study the flow through pipe to understand the phenomena of conjugate heat transfer. And concept of super cycling .   Introduction – CHT- When ever heat is transfer from fluid to solid region or from solid to fluid region through the interface the conjugate heat transfer comes in picture.…

  Aim-   Setup and run transient state simulation for flow over a throttle body. In this case we run the simulation for transient state. everything will be same as it was in steady state simulation. But in this we will rotate the throttle to see the changes in flow. Setup -  Time for simulation - …

Aim-   Steady state simulation of flow over a throttle body Steps – Import the geometry in converge software. Define the boundary. Case setup Simulation Post processing Out puts Case setup For throttle body – Application type –   Time based Pre defined mixture -     Air…

Aim- To study the concept of FRM. Building of the model with FRM builder approach. And its study.  Task 1 -        Build FRM Model Engine configuration is given as follow -   Bore - 102 mm stroke - 115 mm CR -17 No of cylinder - 6nos CI engine Turbocharge - Twin Scroll…

AIM- Understanding the concept Discretization. GEM 3D method  to convert  3D model to 1D for simulation. And how Discretization plays major role in the simulation.  Discretization- It is process of dividing the given volume of part in sub volume.  Discretization length -  It is length…

Aim – To under stand the concept of T/C , its types and application. How we can operate it up to its optimum efficiency to achieve our desired results. Task1 –   Turbocharger –   The turbocharger is an integral part of the engine as it reuses the exhaust gases in order to increase the overall efficiency of the engine.…

Aim/Introduction -  1. Compare SI vs CI . 2. Analysis of important parameters and its  impact on performance.   Task 1 -    Particulars                                                   SI                                                            CI Operating cycle                                 It operates on otto cycle …

Assignment no 2 TASK 1 = Run the case at 1800 rpm air flow rate BMEP BSFC In-cylinder pressure Air flow rate- Air Flow Rate [kg/h]       = 24.6     BMEP-   IMEP [bar] =10.61 FMEP [bar]   = 1.13   BMEP= IMEP-FMEP          …

AIM-     Exploring the GUI of GT-POWER Task-1 GT Suite- GT suite is a software that is developed by gamma technologies and it is broadly used for simulation  and analysis in different industries.    GT suite have these folowing module- 1.GT-Post- GT post is basically used for plot…

1. Aim=     Program for   optimise the stalagmite function and find the global maxima of the function.     2.  Equation to be used=               f(x,y)=f1,x  f2,x  f1,y  f2,y  f1,x=(sin(5.1*3.14*x+0.5)).^6;…

Aim=       Solving second order ODEs   2.  Equation to be used=               d2θ/dt2+b/m X dθ/dt + g/l X sinθ = 0   where g = gravity in m/s2, L = length of the pendulum in m, m = mass of the ball in kg, b=damping coefficient. Values of these parameters is as follow.   L=1 metre, m=1 kg, b=0.05. g=9.81 m/s2.   3. Objective…

                                                    Robotic arm challenge Step 1 = For fixed angles , Program for both links by defining their coordinates is executed . showned in picture 1…