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Week 2 : Basic Calibration of Single cylinder SI-Engine

A spark-ignition engine (SI engine) is an internal Combustion engine, generally a petrol engine, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug. This is in contrast to compression-ignition engines, typically diesel engines, where the heat generated from compression together…

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    Read more Projects by Pramodkumar Puduri (32)

    Week-11 : Discretization of 3D intake manifold using GEM-3D

    Objective:

    Tutorial Single Cylinder DI add Case 2 with discretization length 0.1 mm for intake runner and compare with the default case 1: The study is done on the Single Cylinder Diesel Engine. It's a CI, single-cylinder engine, with two pipes for the intake system and the other two pipes for the exhaust system., SOHC, and direct-injection,…

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    30 Jun 2021 10:20 AM IST

    • GT-SUITE
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    Week-7 : Converting a detailed engine model to a FRM model

    Objective:

      Introduction To FRM: Fast Running Engine Models are dynamic, fully-physical engine models that are designed specifically to run fast. While high-fidelity engine models are common place in the engine performance department, they are often too slow running to incorporate into system level models where long transient events…

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    10 May 2021 12:27 PM IST

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    Week-6 : Turbocharger Modelling

    Objective:

    What is meant by Turbocharger?? A turbocharger, (or turbo), is a turbine-driven forced induction device that increases an internal combustion engine’s efficiency and power output by forcing extra air into the combustion chamber. This improvement over a naturally aspirated engine’s power output is due to the…

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    01 May 2021 12:15 PM IST

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    Week-4 : Basic Calibration of Single cylinder CI-Engine

    Objective:

    Difference Between SI Engines and CI Engines: SI Engine CI Engine It is based on OTTO cycle constant Volume heat addition and rejection Cycle It is based on Diesel cycle or constant Pressure heat addition and constant volume rejection Cycle A high Volatile, high self –ignition temperature fuel, gasoline is used. Comparatively…

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    12 Apr 2021 03:26 AM IST

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      Week 2 : Basic Calibration of Single cylinder SI-Engine

      Objective:

      A spark-ignition engine (SI engine) is an internal Combustion engine, generally a petrol engine, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug. This is in contrast to compression-ignition engines, typically diesel engines, where the heat generated from compression together…

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      31 Mar 2021 10:47 AM IST

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        Week 1 : Exploring the GUI of GT-POWER

        Objective:

        GT-SUITE is the industry-leading simulation tool with capabilities and libraries aimed at a wide variety of applications and industries. It offers engineers functionalities ranging from fast concept design to detailed system or sub-system/component analyses, design optimization, and root cause investigation.…

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        25 Mar 2021 09:05 AM IST

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        Project 2 - Emission characterization on a CAT3410 engine

        Objective:

        Aim: To generate the sector geometry of the combustion chamber of the CAT 3410 engine for the Open w piston and Omega piston. To simulate the both profiles of omega piston and open w piston with the same parameters To study the emissions for the both configurations and study the conclusions Introduction: The CAT 3410 is…

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        11 Aug 2020 11:23 AM IST

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          Week 10: Project 1 - FULL HYDRO case set up (PFI)

          Objective:

          Aim: To study the port fuel injection engine performance characteristics by setting up the combustion and spray modeling and post process the results. Port fuel Injection: An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion…

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          28 Jul 2020 07:04 AM IST

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            Week 8: Literature review - RANS derivation and analysis

            Objective:

            Aim: Apply Reynold’s decomposition to the NS equations and come up with the expression for Reynold’s stress. Explain your understanding of the terms Reynold’s stress What is turbulent viscosity? How is it different from molecular viscosity? Turbulence: Turbulence is an irregular motion of the air resulting from eddies…

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            28 Jul 2020 07:03 AM IST

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              Week 7: Shock tube simulation project

              Objective:

              AIM: Setup a transient shock tube simulation Plot the pressure and temperature history in the entire domain Plot the cell count as a function of time shock tube:  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…

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              06 Jul 2020 11:30 AM IST

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                Week 6: Conjugate Heat Transfer Simulation

                Objective:

                Aim: To run the grid independence test and identified the obtained temperature To study the Super Cycling Stage interval and compare the simulation time for the corresponding results. Plot the Y+ results. Conjugate Heat Transfer: The term conjugate heat transfer (CHT) is used to describe processes which involve variations…

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                04 Jul 2020 04:41 PM IST

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                  Week 5: Prandtl Meyer Shock problem

                  Objective:

                  Aim: To study the flow over the Convex corner or expansion waves To study the influence of SUB-GRID-CRITERION on the results. Literature review on Boundary Conditions and Shock flow To simulate the Prandtl_Meyer expansion Wave Prandtl-Meyer Expansion Fan: A supersonic expansion fan, technically known as Prandtl–Meyer…

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                  01 Jul 2020 06:45 AM IST

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                    Flow over a Backward facing step

                    Objective:

                    Aim: To simulate the Backward step flow for three different mesh grid sizes by using convergent science and paraview. To show various velocity and pressure contours for the different mesh. To show the various plot of velocity, pressure, mass flow rate and total cell count for different mesh grids. To steady the turbulent…

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                    24 Jun 2020 06:40 PM IST

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                    Week 4: Project - Transient simulation of flow over a throttle body

                    Objective:

                    Aim:  To perform the Transient  State Simulation over the throttle body in Converge studio and observe the plots of pressure, Velocity, Mass flow rate and the total Count cells. Post Process the result using Para view and shows the Pressure and Velocity Contours and made a animations for the flow with a different…

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                    24 Jun 2020 06:37 PM IST

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                      Week 4: Project - Steady state simulation of flow over a throttle body

                      Objective:

                      Aim:  To perform the Steady State Simulation over the throttle body in Converge studio and observe the plots of pressure, Velocity, Mass flow rate and the total Count cells. Post Process the result using Para view and shows the Pressure and Velocity Contours and made a animations for the flow with a different angles to…

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                      24 Jun 2020 06:36 PM IST

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                        Conjugate Heat Transfer Analysis on a Graphics Card

                        Objective:

                        Introduction: Conjugate heat transfer (CHT): 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…

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                        07 Apr 2020 05:40 AM IST

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                          Parametric Study on a Gate Valve by Varying the Gate Valve Opening

                          Objective:

                          Introduction: Gate Valve:   A gate valve, also known as a sluice valve, is a  valve  that 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. Gate valves are…

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                          06 Apr 2020 01:11 AM IST

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                            Combustion Analysis On Air Methane Mixture

                            Objective:

                            Based on Mixing: Non_premixed Combustion:         In non-premixed combustion, fuel and oxidizer enter the reaction zone in distinct                  streams. This is in contrast to premixed systems, in which reactants are mixed at the     …

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                            04 Apr 2020 02:02 AM IST

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                              Simulation of Gear Sloshing Effect by using Ansys Fluent

                              Objective:

                              Introduction: Gearbox sloshing.: In fluid dynamics, slosh refers to the movement of liquid inside another object (which is, typically, also undergoing motion). The liquid must have a free surface to constitute a slosh dynamics problem, where the dynamics of the liquid can interact with the container to alter the system…

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                              22 Mar 2020 11:42 PM IST

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                                Cyclone Separator Efficiency

                                Objective:

                                Cyclone Separator: Cyclones are devices that employ a centrifugal force generated by a spinning gas stream to separate particles from the carrier gas. Their simple design, low maintenance costs, and adaptability to a wide range of operating conditions such as sizes and flow rates make cyclones one of the most widely used…

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                                17 Mar 2020 04:16 AM IST

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                                  Transient Analysis of Rayleigh Taylor Instability

                                  Objective:

                                    Rayleigh Taylor Instability: The Rayleigh–Taylor instability, or RT instability , is an instability of an interfernce between two fluids of different densities  which occurs when the lighter fluid is pushing the heavier fluid. Examples include the behavior of water suspended above oil in the…

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                                  04 Mar 2020 01:30 PM IST

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                                  Conjugate Heat Transfer Analysis on an Exhaust Manifold

                                  Objective:

                                  Conjugate heat transfer (CHT): 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,…

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                                  04 Mar 2020 01:30 PM IST

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                                    Steady State Fluid Flow Analysis over an Ahmed Body by using Ansys Fluent

                                    Objective:

                                    Introduction: The Ahmed body is a generic car body (a simplified vehicle model). The airflow around the Ahmed body captures the essential flow features around an automobile and was first defined and characterized in the experimental work of Ahmed . Although it has a very simple shape, Ahmed body allows us to capture characteristic…

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                                    01 Mar 2020 01:05 PM IST

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                                      steady vs unsteady flow over a Cylinder

                                      Objective:

                                      Conclusion: The results for the both the Steady state and  Transient state are converged  Using the transient state solver we are getting the VortexShedding because the solver is solving for each time step and requires more time to solve the entire domain to be converged Compartively the transisent State is the…

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                                      13 Feb 2020 10:34 PM IST

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                                        steady vs unsteady flow over a Cylinder

                                        Objective:

                                        Conclusion: The results for the both the Steady state and  Transient state are converged  Using the transient state solver we are getting the VortexShedding because the solver is solving for each time step and requires more time to solve the entire domain to be converged Compartively the transisent State is the…

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                                        13 Feb 2020 10:33 PM IST

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                                          Simulation of Flow through a pipe part 2

                                          Objective:

                                          All the data can be taken from the previous challenge. Here the matlab code is written for this programme that can be used for all angles with a little changes in it .The changes are angles we can gave input  angles like 10,25,45.  The matlab code for generation of the angle 10 is shown below clear all close…

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                                          31 Jan 2020 08:59 AM IST

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                                          Simulation of Flow through a pipe

                                          Objective:

                                          Hydrodynamic Entrance length : The hydrodynamic entrance region refers to the area of a pipe where fluid entering a pipe develops a velocity profile due to viscous forces propagating from the interior wall of a pipe.This region is characterized by a non-uniform flow.The fluid enters a pipe at a uniform velocity, then fluid…

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                                          31 Jan 2020 08:58 AM IST

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                                          Interpolation and Gradient Schemes literature review

                                          Objective:

                                            Finite Volume Differencing : The basic techniques for the numerical solution of Partial Differential Equations (PDEs) using Finite Volume approximations with analytic methods the solution to a PDE is found for all locations within the domain of interest. However, with finite volume or finite difference methods the…

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                                          12 Oct 2019 07:36 AM IST

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                                            BlockMesh Drill Down Challenge

                                            Objective:

                                            The main aim of this project is to simulate the flow through the backward facing step by using the blocks in icoFoam solver and postprocess the results like velocity profile at the step of 0.085m from the start point of the blocks. The blocks are built by one by one by using the nodes of all three axis There are 5 blocks…

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                                            03 Oct 2019 02:05 AM IST

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                                            Taylor Table method and matlab code

                                            Objective:

                                            The coefficients of the central differencing scheme A=[1,1,1,1,1;-2,-1,0,1,2;4/2,1/2,0,1/2,4/2;-8/6,-1/6,0,1/6,8/6;16/24,1/24,0,1/24,16/24]; >> A A = 1.0000 1.0000 1.0000 1.0000 1.0000 -2.0000 -1.0000 0 1.0000 2.0000 2.0000 0.5000 0 0.5000 2.0000 -1.3333 -0.1667 0 0.1667 1.3333 0.6667 0.0417 0 0.0417 0.6667 >>…

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                                            30 Sep 2019 08:53 AM IST

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                                              1D Super-sonic nozzle flow simulation using Macormark method technique

                                              Objective:

                                              Mach number:    It is defined as the ratio of the speed of the body  to  speed of the soud If Mach number<1,it is sub sonic flow     Mach number=1 ,it is sonic flow     Mach number>1, it is supersonic flow The main program of the 1D Supersonic Nozzle flow byusing Macormack…

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                                              29 Sep 2019 03:26 AM IST

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                                                Solving the steady and unsteady 2D heat conduction problem

                                                Objective:

                                                clear all close all clc % solving the 2d steady state problem dt/dx=0 % nx=ny %tolerance =1e-4 % inputs for the problem L=1; nx=50; ny=nx; x=linspace(0,L,nx); y=linspace(0,L,ny); dx=x(2)-x(1); dy=y(2)-y(1); T=300*ones(nx,ny); Told=T; error=1e9; tolerance=1e-4; % assign boundary conditions T(:,1)=400; % left boundary T(end,:)=900;…

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                                                22 Aug 2019 05:14 AM IST

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