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IGBT Heat Sink Cooling CFD Simulation

$81.00 $44.00

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In this project, the cooling of an IGBT heat sink is simulated.

 

This ANSYS Fluent project includes CFD simulation files and a training movie.

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To order your ANSYS Fluent project (CFD simulation and training), contact our experts via info@mr-cfd.com, online support, and WhatsApp.

Description

IGBT Introduction

An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch. An IGBT generates significant heat and can be affected by excess thermal energy. Using air cooling or liquid cooling techniques, e.g. heat sinks, this excessive heat can be removed, which can lead to improved performances, thus enabling much higher power densities and more compact modules.

Project description

In this project, the cooling of an IGBT heat sink is simulated. The heat sink is in contact with a heat source (with the heat flux of 14583 W/m2) on one side and the air flows on the other side with a mass-flow of 0.25Kg/s. The air-flow is responsible for cooling the heat sink.  Energy model is activated to analyze the heat transfer rate and the Laminar viscous model is activated to solve the air-flow.

IGBT Heat Sink Geometry and mesh

The geometry for analyzing this simulation consists of a heat source and a heat sink. The geometry is designed and meshed in Gambit®. The mesh type used for this geometry is unstructured and the element number is 11872367.

IGBT IGBT

CFD Simulation Settings

The key assumptions considered in this project are:

  • Simulation is done using pressure-based solver.
  • The present simulation and its results are considered to be steady and do not change as a function time.
  • The effect of gravity has not been taken into account.

The applied settings are summarized in the following table.

 
IGBT Models  
Viscous model   Laminar
Energy   On
IGBT Boundary conditions  
Inlets   Mass-flow inlet
  Mass-flow 0.25 Kg/s
Outlets   Pressure outlet
Walls    
  wall motion stationary wall
  Heat source wall 14583 W/m2
IGBT Solution Methods  
Pressure-velocity coupling   Simple
Spatial discretization pressure Second order
Energy second order upwind
momentum second order upwind
IGBT Initialization  
Initialization method   Standard
  gauge pressure 0 Pa
  velocity (x,y,z) (0,0, 20.72626) m/s
  Temperature 300 K

Results

At the end of the solution we present contours of temperature, velocity, surface heat flux, and Nu number.

 

All files, including Geometry, Mesh, Case & Data, are available in Simulation File. By the way, Training File presents how to solve the problem and extract all desired results.

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