Ansys FX-Mesh Tutorials

ANSYS CFX-Mesh Tutorials ANSYS Workbench Release 9.0 November 2004 ANSYS, Inc. is a UL registered ISO 9001: 2000 Company Table of Contents Introduction to the CFX-Mesh Tutorials......................................................................................................... 1 1. List of Features.................................................................................................................................... 4 2. Legal Notices...................................................................................................................................... 5 Tutorial 1: Static Mixer.................................................................................................................................. 9 1. Introduction to CFX-Mesh................................................................................................................... 9 2. Geometry Creation............................................................................................................................ 10 3. Mesh Generation............................................................................................................................... 20 Tutorial 2: Static Mixer (Refined Mesh)......................................................................................................... 27 1. Modifying the Mesh Generation........................................................................................................ 27 2. Geometry Modification..................................................................................................................... 30 3. Updating the Geometry in CFX-Mesh................................................................................................. 32 Tutorial 3: Process Injection Mixing Pipe...................................................................................................... 35 1. Geometry Creation............................................................................................................................ 35 2. Mesh Generation............................................................................................................................... 38 Tutorial 4: Circular Vent............................................................................................................................... 43 1. Geometry Creation............................................................................................................................ 43 2. Mesh Generation............................................................................................................................... 44 Tutorial 5: Blunt Body.................................................................................................................................. 49 1. Geometry Creation............................................................................................................................ 49 2. Mesh Generation............................................................................................................................... 54 Tutorial 6: Butterfly Valve............................................................................................................................ 61 1. Geometry Creation............................................................................................................................ 61 2. Mesh Generation............................................................................................................................... 64 Tutorial 7: Catalytic Converter..................................................................................................................... 71 1. Geometry Creation............................................................................................................................ 71 2. Mesh Generation............................................................................................................................... 78 Tutorial 8: Annulus...................................................................................................................................... 81 1. Geometry Creation............................................................................................................................ 81 2. Mesh Generation............................................................................................................................... 82 Tutorial 9: Mixing Tube............................................................................................................................... 87 1. Geometry Creation............................................................................................................................ 87 2. Mesh Generation............................................................................................................................... 89 Tutorial 10: Heating Coil.............................................................................................................................. 93 1. Geometry Creation............................................................................................................................ 93 2. Mesh Generation............................................................................................................................... 98 Tutorial 11: Airlift Reactor.......................................................................................................................... 103 1. Geometry Creation.......................................................................................................................... 104 2. Mesh Generation............................................................................................................................. 109 Tutorial 12: Room with Air Conditioning.................................................................................................... 113 1. Geometry Creation.......................................................................................................................... 113 2. Mesh Generation............................................................................................................................. 118 Tutorial 13: Can Combustor....................................................................................................................... 121 1. Geometry Import............................................................................................................................ 122 2. Mesh Generation............................................................................................................................. 122 Tutorial 14: CAD Cleanup and Meshing...................................................................................................... 127 1. Mesh Generation............................................................................................................................. 128 CFX-Mesh Tutorials . . ` SAS IP, Inc. vi Introduction to the CFX-Mesh Tutorials The CFX-Mesh Tutorials are a set of tutorial examples which demonstrate how to set up the geometry and mesh for a variety of different problems. The tutorials cover most of the meshing functionality available in CFX-Mesh together with some of the most commonly-used geometry features from DesignModeler. Each example results in the creation of CFX-5 GTM file, which can be imported directly into CFX-Pre. You will find instructions for setting up CFD simulations using these meshes in the CFX-5 Tutorials which are part of the main on-line help for CFX-5. A few of these tutorials require the use of Parasolid or DesignModeler files as a starting point for the geometry creation. Where such a file is required, the introduction to the tutorial explains this. If you have not already obtained these files, they should be readily available from the CFX Community Website: go to http://www-waterloo.an-sys.com/cfxcommunity. This site is available to all registered CFX users. If you have not already got a username and password, go to http://www-waterloo.ansys.com/cfx/community/apply.htm to apply. These tutorial instructions are based on ANSYS Workbench 9.0. Some of the tutorials will not work in earlier versions of ANSYS Workbench since they rely on new features, and other tutorials may be hard to follow. If you still have ANSYS Workbench 8.1 then you can find tutorial instructions explicitly for this version on the CFX Community Website using the following link: http://www-waterloo.ansys.com/cfxcommunity/technotes/docu-mentation/CFX-Mesh_8.1/index.html. If you want to print out the tutorials, then we recommend that you follow the link to the CFX Community Website to download a package in pdf format, and use this for printing. Note that if you create the mesh by following the instructions given in these examples, you may not be able to set up the physics in CFX-5 by using the CFX-Pre session file without getting errors which you need to fix up after the session file has finished playing. You can always follow the CFX-5 tutorial instructions manually instead. This is because the CFX-Pre session files are set up to use the mesh files provided with CFX-5, and some face and body identifications are different to the ones which you would get by creating meshes by following these instructions. In most cases, you can use the CFX-Pre session file to set up the physics, and then manually apply the location of the domain and any sub-domains if required. In addition, in the Combustor tutorial, you will also need to set up the “Vane Surfaces” location manually, and in the Catalytic Converter tutorial, you may need to delete and recreate the two Domain Interfaces manually. Can I Skip the Geometry Creation? If you are only interested in the meshing parts of the tutorials and want to skip all of the geometry creation, then you should follow the link to the CFX Community Website above to download the DesignModeler .agdb files for the tutorials of interest. You can then use these for each tutorial as follows: 1. Open ANSYS Workbench, and create a new empty project. Save the project with the name suggested by the tutorial. 2. At the left side of the Project Page, click on Browse (under Link to Geometry File). Select the ap-propriate .agdb in the file browser which opens up. 3. In the left-hand column, near the top, click on Generate CFX Mesh. Then continue with the tutorial from the beginning of the Mesh Generation section, ignoring the instructions on opening CFX-Mesh. CFX-Mesh Tutorials . . ` SAS IP, Inc. ... - tailieumienphi.vn