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1、Oscillating Plate with Two-Way Fluid-Structure InteractionIntroductionThis tutorial includes: Features Overview of the Problem to SolveSetti ng up the Solid Physics in Simulatio n (ANSYS Workbe nch)Setti ng up the Fluid Physics and ANSYS Multi-field Setti ngs in ANSYS CFX-Pre* Obta ining a Solution
2、using ANSYS CFX-Solver Ma nager* Viewi ng Results in ANSYS CFX-PostIf this is the first tutorial you are working with, it is important to review the following topics before begi nning:Sett ing the Worki ng Directory* Cha nging the Display ColorsUni ess you pla n on running a sessi on file, you shoul
3、d copy the sample files used in this tutorial from the in stallati on folder for your software (/examples/) to your work ing directory. This preve nts you from overwriti ng source files provided with your in stallatio n. If you pla n to use a sessi on file, please refer to Play ing a Sessi on File.S
4、ample files refere need by this tutorial in clude:* Oscillati ngPlate.pre* Oscillati ngPlate.agdb* Oscillati ngPlate.gtm* Oscillati ngPlate.i np1. FeaturesThis tutorial addresses the followi ng features of ANSYS CFX.ComponentFeatureDetailsANSYS CFX-PreUser ModeGeneral ModeSimulation TypeTransientANS
5、YS Multi-fieldComponentFeatureDetailsFluid TypeGeneral FluidDomain TypeSingle DomainTurbulence ModelLaminarHeat TransferNoneOutput ControlMonitor PointsTransient Results FileBoundary DetailsWall: Mesh Motion = ANSYS MultiFieldWall: No SlipWall: AdiabaticTimestepTransientANSYS CFX-PostPlotsAnimationC
6、ontourVectorIn this tutorial you will lear n about:* Moving mesh* Fluid-solid in teract ion (in cludi ng modeli ng solid deformati on using ANSYS)* Running an ANSYS Multi-field (MFX) simulatio n* Post-process ing two results files simulta neously.2. Overview of the Problem to SolveThis tutorial uses
7、 a simple oscillat ing plate example to dem on strate how to set up and run a simulation involving two-way Fluid-Structure Interaction, where the fluid physics is solved in ANSYS CFX and the solid physics is solved in the FEA package ANSYS. Coupling between the two solvers is required throughout the
8、 soluti on to model the in teract ion betwee n fluid and solid as time progresses, and the framework for the coupli ng is provided by the ANSYS Multi-field solver, using the MFX setup.The geometry con sists of a 2D closed cavity. A thin plate is an chored to the bottom of the cavity as show n below:
9、An in itial pressure of 100 Pa is applied to one side of the thin plate for 0.5 sec onds in order to distort it. Once this pressure is released, the plate oscillates backwards and forwards as it attempts to regain its equilibrium (vertical) position. The surrounding fluid damps the oscillations, whi
10、ch therefore have an amplitude that decreases in time. The CFX Solver calculates how the fluid resp onds to the moti on of the plate, and the ANSYS Solver calculates how the plate deforms as a result of both the in itial applied pressure and the pressure result ing from the prese nee of the fluid. C
11、oupli ng betwee n the two solvers is required si nee the solid deformati on affects the fluid soluti on, and the fluid solution affects the solid deformation.The tutorial describes the setup and execution of the calculation including the setup of the solid physics in Simulati on(withi n ANSYS Workbe
12、 nch) and the setup of the fluid physics andANSYS Multi-field sett ings in ANSYS CFX-Pre. If you do n ot have ANSYS Workbe nch, the n you can use the provided ANSYS in put file to avoid the n eed for Simulatio n.3. Setting up the Solid Physics in Simulation (ANSYS Workbench)This secti on describes t
13、he step-by-step defi niti on of the solid physics in Simulati on with in ANSYS Workbe nch that will result in the creation of an ANSYS in put file Oscillati ngPlate.i np. If you prefer, you can in stead use the provided Oscillati ngPlate.i np file and continue from Sett ing up the Fluid Physics and
14、ANSYS Multi-field Setti ngs in ANSYS CFX-Pre.Creating a New Simulatio n1. If required, lau nch ANSYS Workbe nch.2. Click Empty Project. The Project page appears displaying an unsaved project.3. Select File Save or click Save butt on.4. If required, set the path location to a different folder. The de
15、fault location is your working directory. However, if you have a specific folder that you want to use to store files created during this tutorial, change the path.5. Un der File name, type Oscillat in gPlate.6. Click Save.7. Under Link to Geometry File on the left hand task bar click Browse. Select
16、the provided file OscillatingPlate.agdb and click Open.8. Make sure that OscillatingPlate.agdb is highlighted and click New simulation from the left-ha nd taskbar.Creati ng the Solid Material1. When Simulatio n ope ns, expa nd Geometry in the project tree at the left hand side of the Simulatio n win dow.2. Select
