FLuent UDF帮组文档

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学习fluentUDF的帮助文档,比较系统全面,有一定难度
Table of contents Using This manual 1. The Contents of this manual a·aaaa:a:a 2. The Contents of the fluent manuals 着·,·非非番垂 3. Typographical Conventions........... 4. Mathematical Conventions,…,,,,,…,,,, 5. Technical Support……….… VIll 1 Introduction ····…·······:······:·············:··························:··4·:························· 1.1.The Discrete method 2 The Inhomogeneous Discrete Method................... 3. The Standard Method of moments ············· 1.4. the Quadrature Method of Moments 2. Population Balance Model Theory………,…,…,…,………… 音普D 2.1. The Particle state Vector ·非非番。·非自音。非 22. The Population Balance Equation(PBE)………,…,…,…,…,…,…,…,…,…… ··:.··::·· 345566 2.2.1. Particle Growth and dissolution 222. Particle Birth and Death Due to Breakage and Aggregation………,…,…,…,,…,,…,……, 2.2.2.1. Breakage 22.22. Luo and Lehr Breakage Kernels……………………… 2.2.2. 3 Ghadiri Breakage Kernels 2224. Laakkonen Breakage Kernels…...,.,.,.,.,,.,,……,10 2.2.2.5. Parabolic PDF 10 2.. Generalized pdf 2.2.2.7. Aggregation…… 14 2.228. Luo aggregation Kernel...….….….….….…….……………………15 2.2.2.9. Free Molecular Aggregation Kernel ................1 2.22.10. Turbulent Aggregation Kernel.........….…….….….…16 2.2.3. Particle birth by nucleation∩… 18 2.3. Solution Methods 2.3.1.The discrete method and the inhomogeneous discrete method .·.:·.····:.·····::······· 18 2.3.1.1. Numerical method 23.1.2. Breakage Formulations for the Discrete Method……… 21 2.3.2. The Standard Method of moments(SMM) 22 2.3.2.1. Numerical method,…….12 2.3.3. The Quadrature method of Moments (Qmom) 24 2.3.3.1. Numerical Method ∴24 2.3.4. The direct Quadrature method of moments (dQmom) 25 2.3.4.1. Numerical method……………25 2.4. Reconstructing the particle size distribution from moments 27 3.1. Population Balance Module Installation………………………………………………∵,∵….29 3. Using the ANSYS FLUENT Population Balance Model .... 音音.非自音非着音·自自非音自。·。·非自音鲁鲁非自自。非非·· 29 3. 2. Loading the population Balance module ···:·:···:.·····:······· 29 3.3. Population Balance Model Setup………,…,…,…,…,…,…,…,…,…,…,30 3.3.1. Enabling the population Balance Model . 3.3.1.1. Generated dOmon∨ alues∴.37 3.3.2 Defining Population Balance Boundary Conditions………….…….……,…,…,…,…,……………,41 33.3. Specit! ying Population Balance Solution Controls………,…,…,……………242 3.3.4. Coupling With fluid dynamics 43 3.3.5. Specifying Interphase Mass Transfer Due to Nucleation and Growth 44 4. Postprocessing for the population Balance Model 49 4.1. Population Balance Solution Variables Release 14.@ SAS /P Inc. All rights reserved - Contains proprietary and con/idential in/ormation of ansys inc and its subsidie ANSYS FLUENT Population Balance Module Manual 4. 2. Reporting Derived Population Balance variables....................... 49 4.2.1. Computing Moments……… 49 4.2.2. Displaying a Number density Function......... 50 5. UDFs for Population Balance Modeling…………………………….53 5.1. Population Balance variables................................... 53 5. 2. Population Balance Ma acros ∴53 5.2.1 54 5.2.1.1. Usage .·············:·· 非非·音非·D 54 5212. Example… 54 ····· 5.2.2. ∴55 5.2.2.1. Usage…… ········ 55 5.2.2.2. Example.........,.….,….….…....…..55 5.2.3. 56 52.3.1.∪sage,…,,,…,…,… 56 5.2.3.2. Example…………,…,…,,,…,,…,,…,,……….56 5.2.4. 57 ··,·非鲁·鲁着··着·看着·音非看·音·鲁。非自着·非· 5.2.4.1. Usage 。·自非·非非音 ···音垂着音音音· 57 5.2.4.2. Example ·········“··4·:···4·····:····*·········· ····:*··*·················“·······*··· 57 5.2.5. ∴……58 5.2.5.1. Usage… 58 5.2.5.2. Example.....,.,..,..,.….,…..….…….59 5.3. Hooking a Population Balance UDF to ANSYS FLUENT 60 A Macro∴…… A.1. Description...…,,…,…,…,…, ··。·番 鲁··着春看看D· 61 A2. Usage.,…,.,…,…,,,…,…,,,……,…,61 A3. Example…… 62 A.4. Hooking a Heterogeneous Reaction Rate UdF to ANSYS FLUENT..... 63 Bibliography 。非。·。非非。··.···D··非是,·非非·中非非非非·非非非。自非。自非·非非 ·············;····4·:···::·····:·.······ 65 Index 67 Release 14.0-@ SAS /P, Inc. All rights reserved -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Using This Manual This preface is divided into the following sections 1. The Contents of this manua 2. The Contents of the fluent manuals 3. Typographical Conventions 4. Mathematical Conventions 5.Technical Support 1. The Contents of this manual The ANSYS FLUENT Population Balance Model Manual tells you what you need to know to model pop ulation balance with ANSYS FLUENT. In this manual you will find background information pertaining to the model, a theoretical discussion of the model used in ANSYS FLUENt, and a description of using the model for your CFD simulations 2. The Contents of the fluent manuals The manuals listed below form the fluent product documentation set. They include descriptions of the procedures, commands, and theoretical details needed to use FLuent products LUENT Getting Started Guide contains general information about getting started with using FLUENT FLUENT User's Guide contains detailed information about using FLUENT, including information about the user interface, reading and writing files, defining boundary conditions, setting up physical models, calculating a solution, and analyzing your results. FLUENT in Workbench User's Guide contains information about getting started with and using FLUENT Within the workbench environment FLUENT Theory Guide contains reference information for how the physical models are imple mented in fluent FLUENT UDF Manual contains information about writing and using user-defined functions (UDFS). FLUENT Tutorial Guide contains a number of example problems with detailed instructions, commentary, and postprocessing of results FLUENT Text Command List contains a brief description of each of the commands in FLuent's text interface FLUENT Adjoint Solver Module Manual contains information about the background and usage of FLUEnt's adjoint Solver Module that allows you to obtain detailed sensitivity data for the performance of a fluid system FLUENT Battery Module manual contains information about the background and usage of FLUENT's Battery Module that allows you to analyze the behavior of electric batteries FLUENT Continuous Fiber Module Manual contains information about the background and usage of FLUENt's Continuous Fiber Module that allows you to analyze the behavior of fiber flow, fiber properties, and coupling between fibers and the surrounding fluid due to the strong inter action that exists between the fibers and the surrounding gas FLUENT Fuel Cell Modules Manual contains information about the background and the usage of two separate add-on fuel cell models for FLUENT that allow you to model polymer electrolyte membrane fuel cells(PEmfc), solid oxide fuel cells (soFC), and electrolysis with Fluent. FLUENT Magnetohydrodynamics(MHD)Module Manual contains information about the back- ground and usage of FLUENT's Magnetohydrodynamics(MHD)Module that allows you to analyze Release 14.@ SAS /P Inc. All rights reserved - Contains proprietary and con/idential in/ormation of ansys inc and its subsidiaries and affiliates Using This Manual the behavior of electrically conducting fluid flow under the influence of constant(dc)or oscil- lating(ac)electromagnetic fields FLUENT Migration Manual contains information about transitioning from the previous release of fluent, including details about new features solution changes and text command list changes FLUENT Population Balance Module Manual contains information about the background and usage of FLUent's population Balance module that allows you to analyze multiphase flows in volving size distributions where particle population (as well as momentum, mass, and energy require a balance equation Running fluent Under lsf contains information about the using fluent with Platform Com puting s lSF software, a distributed computing resource management too Running fLuent Under pbs professional contains information about the using fluent with Altair PBS Professional, an open workload management tool for local and distributed environ- ments Running FLUENT Under SGE contains information about the using FLUENT with Sun Grid Engine (SGE)software, a distributed computing resource management tool 3. Typographical Conventions Several typographical conventions are used in this manuals text to facilitate your learning process Different type styles are used to indicate graphical user interface menu items and text interface menu items(for example, Iso-Surface dialog box, command) The text interface type style is also used when illustrating exactly what appears on the screen or exactly what you need to type into a field in a dialog box. the information displayed on the screen is enclosed in a large box to distinguish it from the narrative text, and user inputs are often enclosed in smaller boxes A mini flow chart is used to guide you through the navigation pane, which leads you to a specific task page or dialog box. For example, Models Multiphase Edit indicates that Models is selected in the navigation pane, which then opens the corresponding task page. In the Models task page, Multiphase is selected from the list. Clicking the Edit. button opens the multiphase dialog box Also, a mini flow chart is used to indicate the menu selections that lead you to a specific command or dialog box. For example Define Injections indicates that the injections. menu item can be selected from the define pull-down menu and indicates that the command is available in the text menu In this manual, mini flow charts usually precede a description of a dialog box or command, or a screen illustration showing how to use the dialog box or command. They allow you to look up in- formation about a command or dialog box and quickly determine how to access it without having to search the preceding material Release 14.0-@ SAS /P, Inc. All rights reserved -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Mathematical Conventions within a paragraph) using a"/". For example, Define/Materials. tells you to choose the material ual The menu selections that will lead you to a particular dialog box or task page are also indicated(usually menu item from the define pull-down menu. 4. Mathematical Conventions Where possible, vector quantities are displayed with a raised arrow (e.g, a, A). Boldfaced characters are reserved for vectors and matrices as they apply to linear algebra(e. g, the identity matrix, 1) The operator referred to as grad, nabla, or del, represents the partial derivative of a quantity witl respect to all directions in the chosen coordinate system. In Cartesian coordinates, is defined to be k appears in several ways The gradient of a scalar quantity is the vector whose components are the partial derivatives for example The gradient of a vector quantity is a second-order tensor for example, in Cartesian coordinates, (节) l This tensor is usually written as V V-v The divergence of a vector quantity, which is the inner product between and a vector; for example, Release 14.@ SAS /P Inc. All rights reserved - Contains proprietary and con/idential in/ormation of ansys inc and its subsidiaries and affiliates Using This Manual (5 The operator which is usually written as and is known as the laplacian for example T T (6 T is different from the expression( t which is defined as 2 T An exception to the use of is found in the discussion of Reynolds stresses in"Modeling Turbulence in the User's Guide, where convention dictates the use of Cartesian tensor notation In this chapter, you will also find that some velocity vector components are written as u, v, and w instead of the conven tional y with directional subscripts 5. Technical Support If you encounter difficulties while using ANSYS FLUENT, please first refer to the section(s)of the manual containing information on the commands you are trying to use or the type of problem you are trying to solve The product documentation is available from the online help, or from the aNsYs cus tomerPortal(www.ansys.com/customerportal) If you encounter an error, please write down the exact error message that appeared and note as much information as you can about what you were doing in ANSYS FLUENT Technical Support for ANsyS, Inc. products is provided either by ansyS, InC. directly or by one of our certified ANSYS Support Providers. Please check with the ANSYS Support Coordinator(ASC)at your companytodeterminewhoprovidessupportforyourcompanyorgotowww.ansys.comandselect AboutAnsyS>ContactsandLocationsThedirectUrlis:http://www1.ansys.com/customer/public/sup portlist. asp. Follow the on-screen instructions to obtain your support provider contact information. You will need your customer number. If you dont know your customer number, contact the ASC at your company If your support is provided by ANSYS, Inc. directly, Technical Support can be accessed quickly and effi cientlyfromtheansyscustomerportalwhichisavailablefromtheansysWebsite(www.ansys.com) under Support> Technical Support where the Customer Portal is located. The direct URL is: ht tp://www.ansys.com/customerportal One of the many useful features of the Customer Portal is the Knowledge Resources Search, which can be found on the home page of the customer porta Release 14.0-@ SAS /P, Inc. All rights reserved -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Technical Support Systems and installation Knowledge Resources are easily accessible via the Customer Portal by using the following keywords in the search box These Knowledge resources provide solutions and guidance on how to resolve installation and licensing issues quickly NORTH AMERICA All ANSYS, In. Products Web:GototheAnsYsCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option Toll-Free Telephone: 1.800.711.7199 Fax:1724.514.5096 Support for University customers is provided only through the ansyS Customer Porta GERMANY ANSYS Mechanical Products Telephone:+49(0)80927005-55 Email: support@cadfem de All ANSYS Products Web:GototheAnsySCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option National Toll-Free Telephone: German language: 0800 181 8499 English language: 0800 181 1565 International Telephone: German language: +49 6151 3644 300 English language: +49 6151 3644 400 Email:support-germany@ansys.com UNITED KINGDOM Al. Inc. Products Web:GototheAnsySCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option Telephone:+44(0)8701420300 Fax:+44(0)8701420302 Email:support-uk@ansys.com Support for University customers is provided only through the ANSYS Customer Portal JAPAN CFX, ICEM CFD and mechanical products Telephone:+81-3-53248333 Fax:+81-353247308 Release 14.@ SAS /P Inc. All rights reserved - Contains proprietary and con/idential in/ormation of ansys inc and its subsidiaries and affiliates Using This Manual Email:cFx:japan-cfx-support@ansys.com;Mechanicaljapan-ansys-support@ansys.com FLUENT Products Telephone:+81-3-5324-7305 Email:FLUENT:japan-fluent-support@ansys.com;POLYFLOW:japan-polyflow-support@ansys.com;FfC:japan ffc-support@ansys.com;Flowizard:japan-flowizard-support@ansys.com Icepak Telephone:+81-3-5324-7444 Email:japan-icepak-support@ansys.com Licensing and Installation Email:japan-license-support@ansys.com INDIA ANSYS Products(including FLUENT, CFX, ICEM-CFD) Web:GototheAnsYsCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option. Telephone: +91 1 800 233 3475 (toll free)or +91 1 800 209 3475 (toll free Fax:+918025291271 Email:Feaproductsfeasup-india@ansys.com;CfdProDucts:cfdsup-india@ansys.comInstallationinstallation india@ansys.com FRANCE All ANSYS, Inc. Products Web:GototheansySCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option Toll-Free Telephone: +33(0)800919 225 Email:support-france@ansys.com Support for University customers is provided only through the ansyS customer Portal BELGIUM All ANSYS Products Web:GototheAnsySCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option Telephone:+32(0)10452861 Email:support-belgium@ansys.com Support for University customers is provided only through the aNsYS Customer Portal SWEDEN All ANSYS Products Web:GototheAnsySCustomerPortal(http://www.ansys.com/customerportal)andselecttheappropriate option. Telephone:+44(0)8701420300 Email:support-sweden@ansys.com Release 14.0-@ SAS /P, Inc. All rights reserved -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates

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