Surface preparation and Boundary Flagging for NO HYDRO Simulation of Port Fuel Injection engine.

SIMULATING CHANNEL FLOW USING CONVERGE CFD.INTRODUCTIONChannel flow is an internal flow in which the confining walls change the hydrodynamic structure of the flow from an arbitrary state at the channel inlet to a certain state at the outlet. The simplest illustration of internal flow is a laminar flow in a circular tube,…

The Rankine cycle, also referred as the Rankine Vapor Cycle, is a process that is frequently employed by power plants such as coal-fired power plants and nuclear reactors. A fuel is used to generate heat within a boiler, transforming water into steam, which then expands through a turbine, providing usable work. Scottish…

OBJECTIVES:1. To extract the 14 coefficients and determine the specific heat, entropy, and enthalpy for each species in the data file.2. To figure out what each species' molecular weight is.3. To plot each species' local temperature range from low temperature…

Introduction Genetic algorithm optimization is a process that applies the principles of natural selection and evolution to find an optimal solution to a problem. Yes, that is the general idea behind the genetic algorithm. By selecting individuals with high fitness scores to form the next generation and recombining their…

Emission Characterization on a CAT3410 engine In this project, the simulation of two different bowl profiles piston geometries of engine(open-w and omega) types has been analyzed. Useful performance parameters are studied and animations show different plots were constructed. Characterization of NOx, soot, and UHC emissions…

Objective: To simulate the Full-hydro case setup of PFI.            1. Explain the compression ratio definition and calculate the same for the given engine.           2. Calculate the Combustion efficiency of the Engine.         …

Objective : To identify & clean up geometrical errors present in the given automotive geometric model. To create a surface mesh. To Create a wind tunnel around the automotive body. To create a volumetric mesh to perform an external CFD simulation for studying the aerodynamical effects of the vehicle body.  …

Objective: Performing the surface wrap on Engine-Transmission-gearbox assembly. Delete unnecessary faces, clean the surface geometry for errors and create a surface wrap that accurately captures geometry for accuracy to make subsequent simulation viable. The element's target length is 3mm. The above-said goal is achieved…

OBJECTIVE Perform geometrical cleanup after performing geometry check for multiple checks & rectify them to ensure a close surface for performing a CFD meshing using specified element size. The nature of the element shape should be TRIA element.   TOOLS USED: FILL HOLE HOT POINTS(INSERT) …

Objective To make NO HYDRO case set up of an IC engine. Make boundary flagging and complete the setup to determine if the Geometry moves correctly during the run. Introduction –Surface preparation and boundary flagging are important steps before simulation setup. Surface preparation is a process to detect the error…

AIM Set up a transient shock tube simulation in converge, simulate it using Cygwin terminal and post-process in Paraview and check the results.   THEORY/EQUATIONS/FORMULAE USED   A shock tube is an instrument to produce plane propagating shockwaves by rupturing a diaphragm which separates high and low-pressure…

Objective: 1. To simulate a 2D incompressible laminar flow through a cylinder pipe in OpenFOAM. 2. We can use the MATLAB function to automate the blockMeshDict file. 3. Validate Hydro-dynamic length with the numerical result. 4. Validate the fully developed flow velocity profile with its analytical profile. 5. Validate…

CFD meshing on Turbocharger Objectives For the given model, check for the geometrical errors to make appropriate volumes. Create and assign PIDs as shown in the video. Perform surface mesh with the given target lengths as per PIDs. Blade stage-1 = 1 mm Blade stage-2 = 1 mm Impeller = 2 mm Shaft rotor = 1 mm Turbo casing…

PRANDTL MEYER EXPANSION FAN. Aim:- The Prandtl Meyer shock flow is analyzed with a subsonic and supersonic wave and the effect of SGS parameters in the problem. Objective:- Run the Simulation with Subsonic(100m/s) and Supersonic(678m/s) waves. Varying the Sub-grid Criteria value in Adaptive mesh refinement to look at the…

  Aim: - The aim of the project is to simulate the flow through a throttle body using transient simulation. The objective is to understand the development of the flow with the aid of different plots. Objective: - To study the importance of throttle valve in flow simulations. To set up the transient simulation for…

The description of CHT analysis and its applications: The term conjugate heat transfer can be used to describe the processes which involve a temperature variation within the solids and fluids themselves due to the thermal interaction between the solid and the fluid. During CHT the heat transfer can take place from solid…

AIM: To study surface meshing on given geometry, Make three different models with 3 different target lengths. For the given model, check for the geometrical errors and perform Topology cleanup accordingly. Set three different target lengths as three different cases and mesh the model.  Target length = 1mm, 3 mm and…

Aim: Steady-state simulation of flow over a throttle body Objective:  Set up and run the steady-state simulation for flow over the throttle body. Post-process the results and show pressure and velocity contours. Show the mesh (i.e surface with edges) Show the plots for pressure, velocity, mass flow rate, and…

Aim:  Flow over a backward-facing step. Objectives: The case should be run with 3 different mesh sizes.  dx = 2e-4m,              dy = 2e-4m,       dz = 2e-4m  dx = 1.5e-4m,           dy = 1.5e-4m,    dz =…

SIMULATING CHANNEL FLOW USING CONVERGE CFD. INTRODUCTION Channel flow is an internal flow in which the confining walls change the hydrodynamic structure of the flow from an arbitrary state at the channel inlet to a certain state at the outlet. The simplest illustration of internal flow is a laminar flow in a circular tube,…

AIM: To perform a combustion simulation on a given combustor model and to observe the variation of mass fraction of different species in the simulation. OBJECTIVE: Part 1 1) Perform a combustion simulation and plot the variation of mass fraction of different species in the simulation using a line probe at different locations.…

AIM:- 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.…

Abstract: A CFD analysis of a cyclone separator is performed. The separation efficiency is found. Firstly the diameter of the particles is varied. Then the velocity at the inlet is varied with particles of constant diameter. The Physics of the problem is set up in Ansys Fluent. The Post-processing of the results obtained…

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OBJECTIVES: 1) 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. 2) Perform the Rayleigh Taylor instability simulation for 2 different mesh sizes with the base mesh being 0.5 mm. Compare the…

AIM: TO PERFORM EXTERNAL FLOW SIMULATION OVER AHMED BODY. OBJECTIVES:  Describe Ahmed's body and its importance. Explain the reason for the negative pressure in the wake region.  Explain the significance of the point of separation.  Expected Results: 1. Velocity and pressure contours.  2. The drag coefficient…

AIM: PART 1 1. Simulate the flow over the steady and unsteady case and calculate the Strouhal number for Re=100. PART 2 1. Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds number to 10,100,1000,10000 & 100000 (Run with steady solver). 2. Discuss the effect of Reynolds number…

Mixing TEE CFD simulation INTRODUCTION Mixing Tee is a junction device that is having an application for turbulent and temperature mixing. Mixing is performed to allow heat and/or mass transfer to occur between one or more streams, components, or phases. Mixing Tees utilizes a specifically engineered internal geometry…

Expected Results  Validate Hydro-dynamic length with the numerical result Validate the fully developed flow velocity profile with its analytical profile Validate maximum velocity and pressure drop for fully developed flow Post-process Shear stress and validate wall shear stress for fully developed flow Highlight the…

The transport equations governing fluid flow and heat transfer and the formal control volume can be solved numerically based on integration by Finite Volume Method. The finite volume method (FVM) is a method for representing and evaluating partial differential equations in the form of algebraic equations. In the finite…

Aim: To simulate an incompressible-laminar-viscous flow through the backward-facing step geometry. The simulation must be Transient. Analyze and simulate flow through the backward-facing steps. Creating meshes - mesh grading factors: 0.2, and without mesh grading factors. Measuring the velocity profile at 8.5 m from the…

Aim: to simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle numerically for both the conservation and non-conservation forms of the governing equations and solve them using MacCormack's technique in MATLAB. Problem Description: The inlet of the nozzle is connected with the reservoir. The…

We have 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 CENTRAL DIFFERENCING SCHEME The number of nodes=p+q-1 where p is derivative. q is the order of approximations The no of nodes=2+4-1=5 DERIVATION:…

OBJECTIVE Solving the steady and unsteady 2D heat conduction problem 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 We will be using iterative methods for solving implicit equations. 1. Jacobi 2. Gauss-seidel 3. Successive…