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Summary

Figure 22.3: Contours of Total Displacement

22.5. Summary

This tutorial demonstrated how to set up and solve a one-way intrinsic FSI simulation. You learned how to enable a structural model and define the solid material and boundary conditions. After completing the simulation, you displayed the resulting displacement of the structure. For more information about intrinsic FSI simulations, see the Fluent User's Guide.

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	Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
764	of ANSYS, Inc. and its subsidiaries and affiliates.

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Chapter 23: Modeling Two-Way Fluid-Structure Interaction (FSI)

Within Fluent

This tutorial is divided into the following sections:

23.1.Introduction

23.2.Prerequisites

23.3.Problem Description

23.4.Setup and Solution

23.5.Summary

23.1. Introduction

This tutorial examines turbulent air flow through a duct that includes vertical flaps. You will enable a structural model in order to simulate the deformation of the flaps as a result of the fluid flow. It is assumed that the deformation will be large enough that this problem must be modeled as a two-way fluid-structure interaction (FSI) simulation; that is, the fluid flow will affect the deformation of the structures, and vice versa. Because Fluent performs all of the structural calculations (as opposed to using a separate structural program), it is referred to as "intrinsic FSI".

This tutorial demonstrates how to do the following:

•Run a journal file to complete an initial steady-state fluid flow simulation without structural calculations.

•Set up a transient calculation.

•Enable a structural model.

•Define structural material properties, a solid cell zone, and related boundary conditions.

•Set up dynamic mesh zones for the fluid-structure interaction.

•Create solution animation definitions for a scene, contour, and mesh.

•Complete a two-way FSI simulation.

•Postprocess the fluid flow and the deformation of a solid cell zone.

23.2. Prerequisites

This tutorial is written with the assumption that you have completed the introductory tutorial Fluid Flow and Heat Transfer in a Mixing Elbow (p. 35) found in this manual and that you are familiar with the ANSYS Fluent Outline View window and ribbon structure. Some steps in the setup and solution procedure will not be shown explicitly.

Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.	765