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Chapter 1: Fluid Flow in an Exhaust Manifold

This tutorial is divided into the following sections:

1.1.Introduction

1.2.Prerequisites

1.3.Problem Description

1.4.Setup and Solution

1.5.Summary

1.1. Introduction

This tutorial illustrates the setup and solution of a three-dimensional turbulent fluid flow in a manifold. The manifold configuration is encountered in the automotive industry. It is often important to predict the flow field and temperature field in the area of the mixing region in order to properly design the junction.

This tutorial demonstrates how to do the following in ANSYS Fluent:

•Use the Watertight Geometry guided workflow to:

–Import a CAD geometry

–Generate a surface mesh

–Cap inlets and outlets

–Extract a fluid region

–Generate a volume mesh

•Set up appropriate physics and boundary conditions.

•Calculate a solution.

•Review the results of the simulation.

For more information about using the guided workflows, see Working With Fluent Guided Workflows in the Fluent User's Guide.

Related video that demonstrates steps for setting up, solving, and postprocessing the solution results for a turbulent flow within a manifold:

• ANSYS Fluent: Complete Meshing-to-Postprocessing Workflow

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