Abstract: Backward-Facing Step (BFS) flow is one representative model for separation flows, which can be widely seen in aerodynamic flows (airfoil, spoiler, high attack angle process), engine flows, condensers, vehicles (cars, boat), heat transfer systems, and even the flow around buildings, etc. The flow separation after…

Steady state solution:                the generalised form of 2D heat equation can be written as                           →1 discretizing the above 2D PDE by central differencing method: The equation with respect…

Objective:                   The objective of this project is to simulate an SI8 -PFI Engine model using converge CFD. This project explains the complete case setup and the results are post-processed and explained.   Converge:          …

  Objective: To do the thermodynamic analysis of an engine for tractor application for use in India with the following targets, Power 75 HP BSFC targets- min 210 g/kWh and max 225 g/kWh cooled EGR configuration. The above-said objective is attained using GT power, A leading CAE platform for multi-physics one-dimensional…

Objective:       The goal is to clean the surface geometry to avoid errors and create a mesh that accurately captures the input domain geometry(A pressure valve) with high-quality  cells so as to make subsequent calculations intractable.       The above said goal is acheived by using…

Turbochargers: Turbochargers are the devices used to increase the power output of an IC engine without increasing its capacity. i.e., High power can be generated from smaller engines. Turbochargers can also be used to increase the power of an already powerful engine such used in motorsport. It is a turbine-driven compressor.…

Introduction:Most fluid flows, especially those in pipes and ducts, are turbulent. A characteristic feature of a turbulent flow is a small-scale, high-frequency random fluctuation superimposed on the main flow which has an identifiable direction. Normally, the magnitude of the fluctuation is in the range of 5-10% of the…

Objective:                 The objective of this project is to review some important physical and numerical aspects of a quasi 1D super-sonic nozzle flow using maccormack\'s technique. Here a flow problem is intentionally chosen with known analytical results so as to compare the…

Objective:       The goal is to clean the surface geometry to avoid errors and create a mesh that accurately captures the input domain geometry(A pressure valve) with high-quality  cells so as to make subsequent calculations intractable.       The above said goal is acheived by using…

Objective: The objective of this project is to set up a shock tube simulation using Converge studio and post-process the results. Also, plots are obtained for temperature and pressure throughout the regions and conclusions are made. 1 Shock Tube The shock tube is a simple duct closed at both ends. A diaphragm divides…

Abstract:          Throttle valve plays a major role in performance and effeciency of a spark ignition engine.the design of air intake system is of utmost importance in order to improve its power and fuel efficiency. The amount of air entering the engine is controlled by the throttle valve. However,…

Objective: The objective of this project is to setup a Prandtl Meyer Shock problem and solve using Converge Flow Solver with different inlet boundary and initial condition: Subsonic at 100 m/s Supersonic at 680 m/s The overview of this project is to understand the following: What is Shock Wave? About shock flow boundary…

Run the case at 1800 rpm and list down important parameters  airflow rate BMEP BSFC In-cylinder pressure The below-shown tutorial was loaded and the case setup was run The case was set up for 1800 RPM as shown below: The simulation was run for 10 cycles: The simulation was run and the simulation window and summary…

Tutorial - 9 (Building a fast running model) IntroductionFast Running Engine Models are dynamic, fully-physical engine models that are designed specifically to run fast. While high-fidelity engine models are commonplace in the engine performance department, they are often too slow running to incorporate into system-level…

Video for simulation of motion of a simple pendulum is attached below:   Solving 2nd order ODE\'s in matlab: an example of second order differential equation is a simple pendulum with damping. In order to solve a 2nd order ODE in mat lab we need to first split it into two 1st order ODE. in this process the above 2nd…

Objective:       The goal is to create a mesh that accurately captures the input domain geometry(a cylidrical shape) with high-quality (triangulated) cells so as to make subsequent calculations intractable.       The above said goal is acheived by using a most widely used Pre - processing…

Conjugate heat transfer simulation Abstract: The term conjugate heat transfer is used to describe processes which involve variations of temperature within solids and fluids, due to thermal interaction between the solids and fluids. A typical example is the heating or cooling of a solid object by the flow of air in which…

Abstract:          Throttle valve plays a major role in performance and effeciency of a spark ignition engine.the design of air intake system is of utmost importance in order to improve its power and fuel efficiency. The amount of air entering the engine is controlled by the throttle valve. However,…

objective: To code a python program to obtain the presssure-volume curve of a four-stroke si engine. (otto - cycle) Otto cycle: An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a typical spark ignition piston engine. It is the thermodynamic cycle most commonly found in automobile engines.…

Objective:                   The objective of this project is to perform the emission characterization on a CAT3410 Engine model for two different piston profiles using converge CFD. The simulation is done on a sector geometry of two piston profiles and the results are…

Objective:       The goal is to clean the surface geometry to avoid errors and create a mesh that accurately captures the input domain geometry(A BMW M6 model) with high-quality  cells so as to make subsequent calculations intractable.       The above said goal is achieved by using the…

Objective: To derive The following schemes for the 4th order approximations of the second order derivative Central difference. Skewed right sided difference. Skewed left sided difference. Forward difference scheme. Backward difference scheme. B. To provide a plot that compares the absolute error between the above mentioned…

Compare the below SI vs CI tutorials and list down differences Both the cases are ran at 1800 RPM SL. No. Characteristics SI engine CI engine 1 Thermodynamic cycle OTTO cycle Diesel and duel combustion cycle 2 Combustion Spark ignition Compression ignition 3 Governing (Load and speed control) Quantity governed by throttling;…

Objective:       The goal is to clean the surface geometry to avoid errors and carry on the hemming process and create a mesh that accurately captures the input domain geometry(A hood) with high-quality cells so as to make subsequent calculations intractable.       The above-said goal is achieved…

Objective:       The goal is to clean the surface geometry to avoid errors and extract the FE structure of the mid surface of the plastic trim that accurately captures the input domain geometry(An IP substrate) with high-quality cells so as to make subsequent calculations intractable.      …

Objective:             The objective of this project is to setup a channel flow case in coverge studio and to run the simulation and finally post process the results. Here the simulation is ran for three different cases with different base mesh sizes as shown below      case…

Objective:       The goal is to clean the surface geometry to avoid errors and create a surface wrap that accurately captures the input domain geometry(a powertrain control) with high-quality cells so as to make subsequent calculations intractable. The element size for various parts is as shown below: Engine…

Objective:       The goal is to clean the surface geometry to avoid errors and carry on the hemming process and create a mesh that accurately captures the input domain geometry(A plastic bottle cap) with high-quality cells so as to make subsequent calculations intractable.       The above-said…

Objective:       The goal is to clean the surface geometry to avoid errors and carry on the solid meshing (3-D) process and create a mesh that accurately captures the input domain geometry(rear view mirror) with high-quality cells so as to make subsequent calculations intractable.       The…

Objective:       The goal is to clean the surface geometry to avoid errors and carry on the solid meshing (3-D) process and provide connections using connection managers that accurately captures the input domain geometry(side door) with high-quality cells so as to make subsequent calculations intractable.…