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# Multidimensional Simulation of a Spark Ignited Port Fuel Injected (SI-PFI) Engine using CONVERGE CFD (Part 2/2)

PART 1 - SI-PFI Engine - Surface prep, Boundary flagging & No-Hydro Case setup ****************************************************************************************** I. INTRODUCTION After Post-processing the No-Hydro setup & verifying the case parameters runs as specified, the part 2 of this project advances…

Project Details

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Flow over a Throttle body - Using CONVERGE CFD

Objective:

I. Introduction:  In this Project, A Steady & Transient state simulation is done of a Flow through an Elbow joint consisting of a throttle valve. The steady state case is solved with the Throttle valve fully open until convergence is reached. While the Transient case is ran with the throttle valve rotating i.e…

18 Sep 2020 08:29 PM IST

• CAE
• CFD
• CONVERGE-CFD
• PARAVIEW

Literature review – RANS Derivation and analysis

Objective:

Introduction: The Reynolds-averaged Navier–Stokes equations (or RANS equations) are time-averaged equations of motion for fluid flow. The idea behind the equations is Reynolds decomposition, whereby an instantaneous quantity is decomposed into its time-averaged and fluctuating quantities,…

18 Sep 2020 08:28 PM IST

C.H.T Analysis on a Graphic card using ANSYS FLUENT

Objective:

I. Introduction : In this project, A steady state conjugate heat transfer analysis on a Graphic card model is done. Graphic card has become an everyday used object and a very importat part of any computer system, laptops etc. This product is mass produced daily in millions and has made computers exceptionally efficient.…

18 Sep 2020 08:23 PM IST

Aerodynamics : Flow around the Ahmed Body using ANSYS FLUENT

Objective:

I. Introduction :  Automotive aerodynamics comprises of the study of aerodynamics of road vehicles. Its main goals are reducing drag, minimizing noise emission, improving fuel economy, preventing undesired lift forces and minimising other causes of aerodynamic instability at high speeds. Also, in order to maintain…

18 Sep 2020 08:21 PM IST

Data Analysis of an IC engine Simulation using PYTHON

Objective:

I. Introduction : In this project, we use a data file obtained during an Internal Combustion engine simulation using Converge software. The simulation creates a large amount of data amounting to thousands of lines and to analyse such data we create a Data visualizer tool, scripting it in python.  Since the data produces…

18 Sep 2020 08:10 PM IST

Newton Raphson Method- Minimum Pressure to Break Ice with an Air cushion Vehicle using PYTHON

Objective:

Abstract - The ice breaking mechanism under a slow moving air cushion vehicle is explored (E R Muller - Mathematical modelling : Classroom notes in applied mathematics -page(29)) . Determining the minimum cushion pressure needed to break a given thickness of ice . Solving by using the newton-raphson method in python .…

18 Sep 2020 08:07 PM IST

Backward Facing Step simulation using OpenFOAM

Objective:

I. Introduction:  Studying the flow behavior through various structures is an important subject for a CFD engineer. When fluids flow through different geometries, they exhibit different velocity, pressure and flow properties. In this project, Simulation of a flow through backward facing step is done to study the flow…

18 Sep 2020 07:59 PM IST

Solving Quasi 1D Supersonic Flow through a Convergent Divergent Nozzle using MATLAB

Objective:

Abstract : Set up of a time marching, finite difference solution for the Quasi 1D subsonic supersonic nozzle flow. Non-dimensionalizing the Governing flow equations and setting them up with relevant initial and boundary conditions and solving using the Maccormacks technique. Simulating the solution for convergence…

18 Sep 2020 07:55 PM IST

Simulation of Flow Through a pipe : OpenFOAM Scripting & Analysis (Part 2/2)

Objective:

Click here for PART 1 - SIMULATION OF FLOW THROUGH A PIPE (PART 1/2)  -------------------------------------------------------------------------------------------------------------------------------- I. Objective :  1. Automate geometry creation of blockMeshDict file using matlab for Symmetry boundary condition.…

18 Sep 2020 07:48 PM IST

Simulation of Flow Through a Pipe : OpenFOAM Scripting & Analysis (Part 1/2)

Objective:

I. Introduction :  The behavior of pipe flow is governed mainly by the effects of viscosity and gravity relative to the inertial forces of the flow. In this project, Simulation of flow of fluid through a pipe is done to study its effects by creating the geometry in blockMeshDict. Since Simulating large pipes…

18 Sep 2020 07:47 PM IST

Gate valve Simulation & its Parametric Study using ANSYS FLUENT

Objective:

I. Introduction : A gate valve opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. The gate faces can be parallel but are most commonly wedge-shaped (in order to be able to apply pressure…

18 Sep 2020 07:46 PM IST

Combustion Simulation and the effect of the addition of water content on the formation of NOx and Soot using ANSYS-FLUENT

Objective:

I. Introduction :  In this project a combustion simulation on a combustor model is performed, using Methane-air mixture by Eddy dissipation model using Ansys Fluent. The rate of reaction is controlled by turbulent mixing, after which mass fractions of different species are captured including NOx emisions & soot…

18 Sep 2020 07:26 PM IST

Solution & Analysis of Steady and Unsteady 2D Heat Conduction using MATLAB

Objective:

Abstract :  The heat conduction equation is a partial differential equation that describes the distribution of heat (or the temperature field) in a given body over time. Detailed knowledge of the temperature field is very important in thermal conduction through materials. The equation have…

18 Sep 2020 07:25 PM IST

Parsing NASA Thermodynamic Data & Polynomials - MATLAB

Objective:

Project Objective :  To write a program in Matlab to parse the Nasa thermodynamic data file and Nasa polynomials.  To extract coefficients of each species from the data file and calculate thermodynamic properties such as Specific heat , Enthaly & Entropy .  To calculate the molecular weight of each species…

18 Sep 2020 07:24 PM IST

Multidimensional Simulation of a Spark Ignited Port Fuel Injected (SI-PFI) Engine using CONVERGE CFD (Part 2/2)

Objective:

PART 1 - SI-PFI Engine - Surface prep, Boundary flagging & No-Hydro Case setup ****************************************************************************************** I. INTRODUCTION After Post-processing the No-Hydro setup & verifying the case parameters runs as specified, the part 2 of this project advances…

15 Sep 2020 09:01 AM IST

Piston Bowl Swap - Emission Characterization study on a CAT3410 Diesel Engine using Converge CFD

Objective:

I. INTRODUCTION Compression ignition engine (Diesel engine) as the name suggests is an engine where fuel-injection takes place into the engine cylinder toward the end of compression stroke, just before the desired start of combustion. A closed cycle sector analysis of the cylinder is performed in this project as the main…

15 Sep 2020 08:56 AM IST

SI-PFI Engine - Surface preparation, Boundary Flagging & No-Hydro Case Setup using CONVERGE CFD (Part 1/2)

Objective:

PART 2 - Multidimensional Simulation of SI-PFI Engine using Converge CFD (FULL-HYDRO CASE) **************************************************************************************** I. INTRODUCTION  Port-fuel-injection engine as its name suggests is an engine where fuel is injected in the port i.e in its intake port…

14 Aug 2020 04:07 PM IST

Shock Tube simulation using Converge CFD

Objective:

Introduction :             The shock tube is an instrument used to replicate and direct blast waves at a sensor or a model in order to simulate actual explosions and their effects, usually on a smaller scale.  Shock tubes can also be used to study aerodynamic flow…

02 Aug 2020 09:51 AM IST

CHT Flow Simulation through a Pipe using Converge CFD

Objective:

Introduction :            Conjugate heat transfer is a study of heat transfer between solids and fluids in combination. The heat transfer through solids is by conduction & convection in fluids. When both these phenomenon's occur simultaneously in a system together we call it CHT. CHT simulations…

23 Jun 2020 01:56 PM IST

Prandtl Meyer Expansion wave Problem using Converge CFD

Objective:

Introduction :  In this project, a Prandtl meyer expansion fan is simulated using Converge CFD package and its expansion fan phenomenon is captured. The shock region of the expansion fan is refined using adaptive mesh refinement - Subgrid scale (SGS) criterion. The expansion wave is studied for different sgs parameter…

12 Jun 2020 07:22 PM IST

Gearbox Sloshing effect using Ansys Fluent

Objective:

Introduction : In this project we perform a gearbox sloshing effect using ansys fluent for 2 two different clearances of same spur gears with 2 different fluids. In fluid dynamics slosh refers to the movement of liquid inside another object which is also undergoing certain motion.           …

10 May 2020 06:51 PM IST

Channel flow simulation using Converge CFD

Objective:

Introduction : In this project, a flow through a channel has been set up using Converge 3.0 software from Convergent science. Converge software is a high performance computing CFD package used in industry with applications like IC engines, Fuel injectors and sprays, Exhaust after treatment etc.  The Solver is ran…

15 Apr 2020 08:12 AM IST

Discrete phase modeling of a Cyclone separator using Ansys Fluent

Objective:

Introduction :  Cyclone separators are separation devices that use the principle of inertia to remove particulate matter from flue gases, air or liquid steam without the use of filters. They are also known as precleaners. A high speed rotating flow is established within a cylindrical or conical container. Flow…

13 Apr 2020 09:45 AM IST

Study of Flow over a Cylinder using Ansys Fluent

Objective:

I. Introduction :  External flows past objects have been studied extensively because of their many practical applications. Flow past a circular cylinder usually experiences a boundary layer seperation and very strong flow oscillations in the wake region behind the body. In certain Reynolds number range, a periodic…

08 Apr 2020 04:26 AM IST

C.H.T Analysis on an Exhaust Manifold

Objective:

Introduction :  The term conjugate heat transfer (CHT) is used to describe processes which involve variations of temperature within solids and fluids, due to thermal interaction between the solids and fluids. The exchange of thermal energy between the two physical bodies is called study of Heat Transfer, the rate…

08 Apr 2020 04:25 AM IST

Rayleigh Taylor Instability

Objective:

Introduction :     The Rayleigh–Taylor (R–T) instability occurs when a high-density fluid is placed over a lower-density fluid in a gravitational field. When the density interface is disturbed away from horizontal, the hydrostatic pressure acts to drive the heavier fluid into the lighter one,…

08 Apr 2020 04:25 AM IST

Global optimization using Genetic Algorithm

Objective:

Genetic Algorithm : A genetic algorithm is a search heuristic that is inspired by Charles Darwin’s theory of natural evolution. This algorithm reflects the process of natural selection where the fittest individuals are selected for reproduction in order to produce offspring of the next generation. Genetic…

25 Mar 2020 04:13 PM IST

1D Linear equation by time marching , Finite difference method.

Objective:

Objective : To solve 1D linear wave equation by time marching method in finite difference using matlab. Observing how the equation diffuses and Analyzing results .   1D linear Wave equation :        (∂u)/(∂t) = c*(∂u)/(∂x) Method :  Explicit form …

19 Feb 2020 12:43 PM IST

Project 2 - Rankine Cycle Simulator

Objective:

Objective :  To Simulate a Rankine cycle using matlab. Extracting Steam and water properties from XSteam data (IAPWS IF - 97 standard)  Calculating all the state points of the cycle based on User inputs. Plotting the T vs s and  H vs s plot for the given input.    Rankine Cycle :  Rankine…

22 Jan 2020 12:29 PM IST

Effect of time step size on the solution of 1D linear equation solved by time marching method .

Objective:

Objective :  To observe the effect of time step size on the solution of 1D linear equation. It is in sequence with the previous report : here    Parameters changed : To observe the different time steps of same solution and understand the time it takes to simulate that solution, we create a function…

22 Jan 2020 12:29 PM IST

Simple Pendulum Simulation by solving 2nd Order ODE - Python

Objective:

Simple Pendulum Simulation by solving second order ODE .  .                                             The objective of this program is to simulate a simple pendulum by solving second order ODE…

22 Jan 2020 12:29 PM IST

Curve fit with Python

Objective:

Introduction  Curve fitting is the process of constructing a curve, or mathematical functions, which possess the closest proximity to the real series of data. By curve fitting, we can mathematically construct the functional relationship between the observed dataset and parameter values, etc. It is highly effective…

22 Jan 2020 12:29 PM IST

Air Standard : Otto Cycle - using Python

Objective:

Introduction The Otto cycle was given by Dr. Nikolaus August Otto. It is a gas power cycle that is used in spark ignition engine (i.e. petrol engine) for its working. The entire modern petrol engine works on Otto cycle. It consist of four processes, Two isentropic (reversible adiabatic) processes and two isochoric (constant…

22 Jan 2020 12:29 PM IST

Curve Fitting using Linear & Cubic Polynomials and improving the fit

Objective:

Report   Curve Fitting of Temperature vs Specific Heat data : Introduction  Curve fitting is the process of constructing a curve, or mathematical functions, which possess the closest proximity to the real series of data. By curve fitting, we can mathematically construct the functional relationship between…

22 Jan 2020 12:29 PM IST

Simple Pendulum Simulation by solving 2nd order ODE

Objective:

Report :  Simple Pendulum Simulation by solving second order ODE .  .                                             The objective of this program is to simulate a simple pendulum by solving second…

22 Jan 2020 12:29 PM IST

Air standard Otto Cycle

Objective:

Report 3 :  Introduction The Otto cycle was given by Dr. Nikolaus August Otto. It is a gas power cycle that is used in spark ignition engine (i.e. petrol engine) for its working. The entire modern petrol engine works on Otto cycle. It consist of four processes, Two isentropic (reversible adiabatic) processes and two…

22 Jan 2020 12:29 PM IST

Comparing results of 4th order approximations of a function using taylor table, finite difference method .

Objective:

Objective : To derive 4th order approximation of second order derivative using taylor table method of finite difference . Using matlab code to plot and comare the errors of each approximation i.e central difference , skewed right sided difference , skewed left sided difference .   Function :   e^x*cos(x) …

22 Jan 2020 12:29 PM IST

Mixing Efficiency Using Ansys Fluent in a Tee Joint

Objective:

I. Introduction :   Tee joint is a type of pipe fitting which is T-shaped having Either 1 inlet 2 outlets or 2 inlet 1 outlet combination, The Inlet/Outlet in the Y direction is in perpendicular with the X direction. It is a Common piping component, typically used to combine or seperate flow of fluid. This project…

22 Jan 2020 12:28 PM IST

Comparison of 1st, 2nd & 4th order approximations of the first derivative against the Exact derivative

Objective:

Objective :  To write a program that compares the first, second and fourth order approximations of the first derivative against the analytical or exact derivative and calculates the error as absolute difference of the approximations against exact / analytical derivative .    Report :  The function `f(x)…

22 Jan 2020 12:27 PM IST

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