ANSYS Fluent UDF 用户手册

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用户定义的功能允许您自定义ANSYS流体,并可以大大增强其能力。ANSYS FLUENT定制手册的第一部分详细介绍了如何在ANSYS FLUENT中编写、编译和使用udfs。如果有的话,也列举了一些例子。关于c编程基础的一般信息包含在附录中。
Table of contents Using This manual D··非非··非·。非音 ,,ⅩXV 1.The contents of this manual XXV 2. The contents of the fluent manuals∴,,,,…,…,XV 3. Typographical Conventions ......................... 4. Mathematical Conventions.…….…………………………xi 5. Technical Support....... l. Creating and Using User Defined Functions.....,,,,,…,…,…,… 1. overview of User-Defined Functions(UDFs).................. i133 1. What is a User-Defined function? 2. Limitations 1.3. Defining Your UDF Using Macros,… 44 1.3.1. Including the Header file in your source file. 14. nterpreting and Compiling UDF5……6 1.4.1. Compiled UDFs… .···:·· 6 1.4.2. Interpreted UDFs.. 6 14.3. Differences Between Interpreted and Compiled UDFS……………6 1.5. Hooking UDFs to Your ANSYS Fluent Model 7 6. Mesh Terminology.… 8 1.7. Data Types in ANSYS Fluent.... 9 1. 8. UDF Calling Sequence in the Solution Process...................... 11 1.8.1. Pressure-Based Segregated Solver 1.8.2. Pressure-Based Coupled Solver..................................... 12 1.8.3. Density-Based Solver 1.9. Special Considerations for Multiphase UDFs.......................14 1.9.1. Multiphase- specific Data Types……,…,…,…,…,…,…,…,…,…,…,…,…,…,……………,14 Macros∴,,17 2.1. Introduction ····;·· 17 2. 2. General Purpose Macros∴17 2.2.1. 18 2.2.1.1. Description 18 2.,2.1.2. Usage,…,…,…,…,…,…,…,…,…,,…,…,19 2. 2.1.3. Example 1........... 19 2.2.1.4. Example2...20 22.1.5. Hooking an Adjust UDF to ANSYS F|uent………… 20 2.2.2. ··.·.·:··········;········ 20 2,2.2.1. Description……,…,…,…,…,…,…,…,…………,20 2.2.2.2. Usage… 20 2.2.2.3. Example,………,…,…,…,,…,, :·:·············:·····:·:····:·::··::::··: 21 2.2.2.4. Hooking an Adaptive time step udf to ANsyS Fluent 21 2.2.3. 21 2.2.3.1. Description ··+·· 21 2.2.3.2. Usage…,…,…,…,…,…,…,…,…,… 22 2.2.3.3. Exampl ∴.22 223.4. Hooking an Execute-at-End UDF to ANSYS Fluent.………,………………………22 2.2.4. ···············,·····中··············*····* 23 2.2.4.1. Description,…,…,…,…,…, ·:·:···;·.····;···:·中····.中···:···::···:··· 23 2.2.4.2. Usage……,…,…,…,…,…,…,…,… 鲁·看 23 2.2.4.3. Hooking an Execute-at-Exit UDF to ANSyS Fluent ·····::····· ·············.····· 23 2.25. ··········:····· 23 2. 2.5.1.Description................... 23 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.2.5.2. Usage…,…,…,,… ·:····:·:···.·:···· ……23 2.2.53. Example…… 24 2. 2.5.4. Hooking an Execute From GUl UDF to ANSYS Fluent......................25 2.2.5. ··:···················:·······::··· 25 2.2.6.1. Description 25 2.2.6.2.∪sage……… 鲁·非非·非非非非··非·非····非·音音自··非·非非非·非非 ·非非自非音‖非·非非着 2.2.6.3. Example 1 25 22.64. Example2..,,,,,,,,…,,26 2.2.6.5. Hooking an Execute On Loading UDF to ANSYS Fluent 27 2.2.7 ·······:····· 27 2.2.7.1. Description…… 27 2.2.7.,2. Usage,,…,…,…, 27 2.,27.3. EXample…… 28 2. 2.7.4. Hooking an Execute After Reading Case and data File UdF to ANSYS Fluent. ............28 2.2.8 28 2.2.8.1. Description…….……,…, 28 2.28.2. Usage……, .····::.··:· 28 2.2.8.3. Example 着鲁音音音 29 2.2.8.4. Hooking an Initialization udf to ansyS Fluent ,29 2.2.9 29 2.2.9.1. Description…………,…,…,…,…,…,…,…,…,…,…,…… 着鲁·着非春 29 2.,2.9.2. Usage.....….,.….….,….…...…,….….,…..……,30 2.293. Example.......)0 2.2.9.4. Hooking an On-Demand UDF to ANSYS Fluent 31 2.2.10. 中····.··:·;·.···:.········· 31 2.2.10.1.Description 31 2.2.10.2. Usage…,…,…,…,…,…,…,…,…,…,…,,…,………,…,31 2.2.10.3. Example……,…,,,…,…,…,…,,…,…,…,…,,…,,32 2.2.104. Hooking an output Parameter UdF to ANSYS Fluent.…,………32 ··:·.·········:·······.··················:····4·····::······························:···· 33 22.11.1. Description........…... 33 2.2.11.2. Usage,,…,…,…,…,……………33 2. 2.11.3. Example..... ∴33 2.2.11.4. Hooking a read/ Write Case or data file udf to ansys fluent…………34 2.2.12. ··········:····;··+··················+········中·········.+········:················ 34 2.2.12.1. Description……,,…,…,…,…,…,,…,……,34 2,2.12.2. Usage… 34 2.2.12.3. Helper Functions 34 2.,2.12.4. Examples…,…,,… 灬39 22.125. Hooking a Read,/ Write hdf case or data file udf to ansyS fluent……………40 2.3. Model-Specific Macros .…………,40 2.3.1. 着·鲁音鲁音自普。音自音音音非鲁 47 2.3.1.1. Description……,…,….,…,…,…,….,…,…,…,….,…,….,…,….,….,…,….….47 23.1.2. Usage.................…..….… 47 23.13. Example… 48 2.3.1.4. Hooking an Anisotropic Conductivity UDF to ANSYS Fluent 49 2.3.2. 鲁D鲁非 49 2.3.2.1. Description 49 2.3.2.2. Usage……,…,…,…,…,…,…,…,…,…,…,49 2.3.2.3. Example..…..,..,…....,...,...50 23.24. Hooking a Chemistry Step UdF to ANSYS Fluent……………,…,…,…………………50 2.3.3. 50 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.3.3.1. Description……,…,…,…,, 50 2.3.3.2. Usage,…… 2.3.3.3. Hooking a Mixing Constant UDF to ANSYS Fluent.... 51 2.3.4. ······:···::::··:··:··:······:·····:·:····::·:····· ·············:····· 51 2.3.4.1. Description 51 2.3.4.2. Usage……,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,51 2.3.4.3. Example 52 2.3.4.4. Hooking a Diffusivity UDF to ANSYS Fluent .;···.·;···.········ 52 2.3.5. 52 2.3.5.1. Description……52 235.2. Usage.......,….,….….,… ········ ··················· 53 2.3.53. Example................3 2.3.5.4. Hooking a discrete Ordinates model (dom) diffuse reflectivity UDF to ANSYS Flu ent 54 2.3.6 54 2.3.6.1. Description,,…,…,…,…,…,…, ∴54 2.3.6.2. Usage,…,,…,…,…,…,…,…,…,…,,,…,….154 2.3.6.3. Example 55 2.3.6.4. Hooking a DOM Source UDF to ANSYS Fluent 55 2.3.7 55 2.3.7. 1. Description 着鲁·着非春 55 237.2. Usage,...., ·······:·············::··*·*·······················…······ .56 2.3.7.3. Example 57 2.3.7.4. Hooking a Discrete Ordinates Model(doM) Specular Reflectivity UDF to ANSYS Flu- ent ,.........4......4........................ 春着非 ∴57 2.3.8 57 2.3.8.1. Description ……………57 2.38.2. Usage……,,…,…,…,…,…,…,…,…,,…,,,…………,57 2.3.8.3. Example ········.····.··········:········.:····:······: 58 2384. Hooking an ECFM Flame density Area Source UdF to ANSYS Fluent……………58 2.3.9. ∴59 2.3.9.1. Description 非自非自非 59 2.3.9.2.∪sage………… 59 2.3.9.3. Example...........59 2.3.9.4. Hooking an eCFm spark source udf to ANSYS Fluent 60 2.3.10. ∴…60 2.3.10.1. Description………,…,…,… ·· 60 2.3.10.2. Usage,…,,…,…,…,… 60 普着着音。鲁·着·非音自·着·D音音鲁普自音非音··非非番·普自非·非 2.3.10.3. Example- Electrochemical Reaction Rate Using UDF……………………………61 2.3.10.4. Hooking an electrochemical Reaction rate Udf to ANSYS Fluent.........61 2.3.11 ········:···:········· 62 2.3.11.1. Description 62 2.3.11.2. Usage,…, …62 2.3.11.3. Example ... 62 23.114. Hooking an Emissivity Weighting Factor UDF to ANSYS Fluent………………263 2.3.12. .63 2.3.12.1. Description………,…,…,…,…, 63 23.122. Usage……,…,….…. 63 2.3.123. Example..........,….64 2.3.12.4. Hooking a flamelet Parameters Udf to ANSYS Fluent,…………64 2.3.13. ···.···:·:···:·······.·············· …65 2.3.13.1. Description 65 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.3.13.2. Usage…,…,…,…,…,…,…,…,…,…,…,…,……….65 2.3.13.3. Example 65 2.3.13.4. Hooking a Frame Motion UDF to ANSYS Fluent. ........................................66 2.3.14 ·.··…·:.·:·::·:···· 66 2.3.14.1. Description 66 23.14.2. Usage……,…,…,…,…,…,…,…,…,…,,…,…,…,…,,…,……66 2.3. 14.3. Example.... 67 2.3.14.4. Hooking a Gray Band Coefficient UDF to ANSYS Fluent 67 2.3.15 .67 2.3.15.1. Description…… ·非·非非非非·非··非·。 67 23.15.2. Usage……,… 67 2.3.153. Example.68 23.154. Hooking a Heat Flux UdF to ANSYS Fluent.,…,…,…,…,…,…………69 2.3.16 69 23.16.1. Description………,…,…,……,…,……,…,…………69 2.3.16. 2 Usage 69 2.3.16.3. Example………,…,…,,…,,…,…,,,…,.,…,……,,…..69 2.3.16.4. Hooking an Ignition Source UDF to ANSYS Fluent 71 2.3.17 71 2.3.17.1. Description 71 2.3.17. 2 Usage 71 2.3.17.3. Example...... 72 2.3.17.4. Hooking a net reaction rate udf to ansys Fluent.........................72 2.3.18. 3 2.3.18.1. Description…….….….,….,….,…,…,…,…,…,…,………,73 2.3.18.2. Usage 2.3.18.3. Example 74 23.184. Example2….………… ·······;·····:····;···a···.····.:··:·.·:·:·.·:·:.:.···· 75 2.3.18.5. Hooking a nox rate udf to ansys Fluent :.···· 76 2.3.19 ……………,77 2.3.19.1. Description.….,…,…,…,…, ..77 2.3.19.2. Usage 78 2.3.19.3. Example 1 79 23.194. Example2..81 2.3.19.5. Hooking a define pdf table udf to ansys Fluent .82 2.3.20 82 23.20.1. Description……………,…,…,…,…,,…,…,,…,……,…………,!82 2.3.202. Usage,.,.,.,.,.,…,… 82 2.3.20.3. Auxiliary function………………………………………,283 2.3.20.4. Example 1 83 23.20.5. Example2… 84 2.3.20.6. Hooking a Particle reaction Rate UDF to ANSYS Fluent.………………85 2.3.21. UDFS… ·非非非非· 来鲁非着非非非非非非·非非自非辛非非·非。非非·· 86 2.3.21.1 86 23.212. Description… 86 2.3.21.3. Usage, 86 23.214. Example.…,…86 2.3.21.5. Hooking a Prandtl Number UdF to ANSYS Fluent ·······················*····:················· 86 2.3.21.6 86 2.3.21.7. Description 86 23.21.8. Usage,……,…,…,,…,…,…,,…,…,…,,…,…,…,…,…,………,,87 2.3.21.9. Example ∴87 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.3.21.10. Hooking a Prandtl Number UDF to ANSYS Fluent….,…,…………88 2.3.21.11 88 2.3.21.12. Description ,88 23.21.13. Usage……………,………………………88 2321.14. Example....... 。音·。曲音 89 23.21.15. Hooking a Prandtl Number UDF to ANSYS Fluent……… 89 2.3.21.16 89 2.3.21. 17 Description 89 23.21.18. Usage...,.,.,… 89 2.3.21.19. Example∴…99 2.3.21.20 Hooking a Prandtl Number UdF to ansYS Fluent 90 2.3.21.21. 0 2.3.21,22. Description……,…,…,… 2.3.21.23. Usage……,,…,…,…, 90 2.3.21.24. Example…,…,…,…,…,…,…,…,…,…,,……,90 23.21.25 Hooking a Prandtl Number UdF to ANSYS Fluent….….….………………9 2.3.22 91 2.3.22.1. Description 91 2.3.22.2. Usage…,… 92 2.3.22.3. Example 1- pressure profile 93 2.3.22.4. Example 2-Velocity Turbulent Kinetic Energy, and Turbulent Dissipation Rate Pro files∴ 93 2.3.225. Example3- Fixed velocity UDF…...,.,…,,…,…,……………96 2.3.22.6. Example 4-Wall Heat Generation Rate Profile · 97 2.. Example 5-Beam Direction Profile at Semi-Transparent Walls... ·非,自非音非鲁着非非·。·D。音。非 97 2.3.228. Example6-Ⅵ /iscous resistance profile in a porous zone……,……,…………98 2.3.22.9. Example7- Porous resistance direction vector….,,,….,,……………,99 2.3.22.10. Example 8-Target Mass Flow Rate UdF as a Function of Physical Flow Time.... 99 2. 11. Example 9-Mass Flow Rate UDF for the Mass Flow Inlet............ 100 2.3.22. 12 Hooking a Boundary Profile UdF to ANSYS Fluent...... ∴100 2.3.23. UDFS .··.···..·.·········.·..········· 01 2.3.23.1. Description 音非·非自非布·音非 101 2.3.23.2. Usage… 102 23.23.3. Auxiliary Utilities……,,,, 102 2.3.23.4. Example1- Temperature- dependent Viscosity Property……………104 2.3.23.5. Example 2-User-defined Mixing law for thermal conductivity. .......................105 2.3.23.6. Example 3-Surface tension Coefficient UDF 105 2.3.23.7. Example4- Density function for Compressible liquids.………………,…106 2.3.23.8. Hooking a Property UDF to ANSYS Fluent ∴107 2.3.24. 音鲁音D鲁音音音鲁自看音 ……………4107 23.24.1. Description………,…,…,…,…,…,…,…,…,…,…,…,107 2.3.24.2. Usage….,…,…,…,…,…,…,…,…,…,…,…,,,107 23.24.3. Example.……,…,…,…,…,…,…,…,…,,…,…,, ,着鲁·鲁·着·着D鲁··普音·非··自 107 2.3.24.4. Hooking a Reacting Channel Solver UDF to ANSYS Fluent 音。省音。· 09 2.3.25. 中···.·.··:· 109 2.3.25.1.Description............ 109 2.3.25.2. Usage,,.,.,…,…,…,…,…,…,…,,…,109 2. 3.25.3. Example 110 2.3.254. Hooking a reacting Channel Solver UDF to ANSYS Fluent……………,………12 2.3.26 112 2.3.26.1. Description……,…,…,…,…,…,…,,… …112 2.3.26.2. Usage,.., 112 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.3.263. Example.12 2.3.26.4. Hooking an SBES Blending Function UDF to ANSYS Fluent 113 2.3.27. 2.3.27.1. Description..……,……,…,…,…,…,…,……113 2.3.27.2. Usage… 113 2.3.27,3. Example……………,…,…,…,…,,…,…,,,…,…,…,…,…,……………,13 2.3.27. 4 Hooking a Scattering Phase UDF to ANSYS Fluent 14 2.3.28. 115 2.3.28.1. Description 15 2.3.28.2. Usage……,115 2.3.28. 3 Example ····· 15 23.284. Hooking a Solar Intensity UDF to ANSYS Fluent………,……,116 2.3.29. 116 23.29.1. Description……………………… 16 2.3.29,2. Usage…,…,…,…,…,,…,,…,…,…,,…,……,116 2.3.29.3. Example 116 23.294. Hooking a Solidification Parameter UDF in ANSYS Fluent…………117 2.3.30. 17 2.3.30.1. Description....... 2.3.30.2. Usage. ·······.·······················. 117 23.30.3. Example: Soot mass rate...,..,………….18 2.3.30.4. Hooking a Soot Mass Rate UDF to ANSYS Fluent 19 2.3.31. ………119 2.3.31.1. Description ..... 19 23.31.2. Usage,…,,…,…,…,…,…,…,…,…,…,…,19 2.3.31.3. Example: Soot Nucleation and Coagulation Rates……………………,120 2.3.31.4. Hooking a Nucleation and Coagulation Rates UDF to ANSYS Fluent... 121 2.3.32. ……,…………,……121 2.3.32.1. Description 121 2.3.32.2. Usage……………,……,…,…,…,…,…,…,…,…,…,…,…,…,,…,……,……,122 2.3.32.3. Example: Soot Oxidation Rate........... 22 2.3.32.4. Hooking a Soot Oxidation Rate Udf to ANSYS Fluent............... 123 2.3.33. 123 2.3.331 Description 音非 123 2.3.33.1.1. Usage………,…,…,…,…,,…,…,…,…,…,…,…,,………,123 2.3.33.1.2. Example: Soot Precursor. ........................................................................124 2.3.33.1.3. Hooking a SOOT_ PRECURSOR UDF to aNsys fluent……,…,…,…,………124 2.3.34. 音··非音·非非音非音音音音非自。非音鲁·非··。非·非音音·普·非音非非音音,垂非·非·非音音·音非自音非非非··非·非非·。音音非鲁普音音非音音着·番非音·非 24 23.34.1. Description………………………………………124 2.3.34.2. Usage,,…,,…,…,…,,…,…,…,…,,…,……,…,………,125 2.3.34.3. EXample1- Source Term addition.…,…,…,, 26 2.3.344. Example2- Degassing Boundary Condition……………,…,………………,127 23.34.5. Hooking a Source UDF to ANSYS Fluent…………,…,…,……………………128 2.3.35 128 2.3.35.1. Description……,…,…,…… 128 2.3.35.2. Usage 128 2.3.35. 3 Example 1 ···································· 129 2.3.35.4. Example 2........................................ 131 2.3.35.5. Hooking a SOx Rate UDF to ANSYS Fluent 132 2.3.36 ·4·.·····. 133 2.3.36.1. Description........….….,……133 23.36.2.∪sage………, 133 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.3.363. Example.........133 2.3.36.4. Hooking a Spark Geometry UDF to ANSYS Fluent 135 2.3.37. 135 23.37.1. Description..……,………,……,…,…,…,,…,………,135 2.3.37.2. Usage… 135 23.37.3. Example……………,…,…,…,,…,,…,…,…,,…,……,…,………….,136 2.3.37.4. Hooking a specific heat udf to aNSyS Fluent a·a··:a·:· 136 2.3.38 ·············:··· ················· 136 2.3.38.1.Description 36 2.3.38.2. Usage…..,137 23383. Example1- Surface Reaction Rate Using Species Mass Fractions…………………137 2.3.38.4. Example 2- Surface Reaction Rate Using Site Species. ..................................138 2.3.38.5. Hooking a surface reaction rate udf to ANSYS Fluent……,………,138 2.3.39 39 2.3.39.1. Description………....,,,… ·.··········.····:······:···· 139 2.3.39.2. Usage ·.········:·····.······:····:· 139 2.3.393. Example- Thickened flame model……..…..….…,…,…,…,…,……,………,139 2.3.39.4. Hooking a Thickened Flame model Ud to ANSYS Fluent 140 2.3.40. UDFS …………140 2.3.40.1. 140 2.3.40.2. Description........,.,…,…,……,140 2.3.40.3. Usage 140 2.3.40.4. Example… 140 23.40.5. Hooking a Transition Correlation UDF to ANSYS Fluent….………………,140 2.3.40.6 ∴……………141 2.3.40.7. Description……,…,…,…,…,…,…,…,…,…,…,…,,…,…141 2.3.40.8. Usage……,…,…,…,…,…,…,…,…,…,…,…,…,……,141 23.40.9. Example…… 141 2.3.40.10 Hooking a Transition Correlation UDF to ANSYS Fluent ..............................141 2.3.40.11 着· 41 2340.12. Description…..........…..141 2.3.40.13. Usage…,,…,…,…,…,,…,,…,…,…,……,141 2340.14 Example… ···········;·:···············:···::····=· 142 2.3.40.15 Hooking a Transition Correlation UDF to ANSYS Fluent 42 2.3.41. 142 2.3.41.1. Description……,…,,…,,…,… …142 23.41.2.∪sage……,…,…,…,…,…,…,…,…,…,,…,,…,… ······ 43 2.341.3. Example..........…...143 23.41.4. Hooking a Transient Profile UdF to ANSYS Fluent.……………………………143 2.3.42. 143 23.42.1. Description………,…,,…, 43 2342.2. Usage,..… 144 23.423. Example..........,,,…,,… 144 2.3.42.4. Hooking a turbulent premixed Source udf to aNSYS Fluent 45 2.3.43. UDF 45 2.3.43.1. Description 中· 145 2.3.43.2. Usage 鲁D鲁非 ∴145 23433. Example… 146 2.3.43.4. Hooking a turbulent Schmidt Number UdF to ANSYS Fluent 46 2.3.44. ·.·.······:·.···.··a:.··········::··:·:··::····:·a···:·:4中·· 146 2.3.44.1. Description…,…,….,…,…,,….,….,…,………,……,146 23.44.2. Usage 146 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates Customization manual 2.3.44.3. Example1- Single Phase Turbulent Viscosity UDF,…,…,…,…………………147 2.3.44.4. EXample 2-Multiphase Turbulent Viscosity UDF 147 23.445. Hooking a turbulent Viscosity UDF to ANSYS Fluent…….….148 2.3.45 148 2.3.45. 1 Description............... 48 2.3.45.2. Usage 48 23453. Example1..... 非非非自非非自非 自d非非音 4149 2.3.45.4. Example2.… 149 2.3.45.5. Hooking a Volumetric Reaction Rate UDF to ANSYS Fluent 150 2.3.46. 50 2.3.46.1. Description 150 2.3.462. Usage,.,.,,…,…,…,…,…,150 23.46.3. Example∴ 151 2.3.46.4. Hooking a Wall Function UDF to ANSYS Fluent. ................................................151 2.3.47. ……151 2.3.47.1. Description..............,..,….,.….151 2347.2. Usage……,…,…,…,…,…,…,…,…,…,…,…,…,…,…,……………………,152 2.3.47.3. Example 152 2.3.47.4. Hooking a Wal! Function udf to anSyS Fluent……,…,,………,153 2.4. Multiphase Macros .153 2.4.1. 155 2.4.1.1.Description 155 2.4.1.2. Usage,…,…,…,…,…,…,…,…,…,…,…,…,155 24.1.3. Example……, 灬1156 2414. Hooking a Boiling Property UDF to ANSYS Fluent……,…,………………,156 2.4.2. 156 2.4.2.1. Description…… 156 2.4.2.2. Usage,…,,…,…,…,…,…,…,…,…,…,…,,…,……,157 2.4.2. 3. Example...... 57 24.2.4. Hooking a Cavitation Rate UDF to ANSYS Fluent………………………………158 2.4.3. 158 2. 4.3.1. Description 158 2.4.3.2. Usage .159 2.4.3. 3 Example 1-Custom Drag Law 160 24.34. Example2- Custom lift law…………,…,,…,,,,,,,, 161 2.4.3.5. Example 3-Heat Transfer..................162 2436. Example4- Custom Interfacial area…………,…,…,…,,,…,,……162 2.4.3.7. Hooking an Exchange Property UDF to ANSYS Fluent 163 2.4.4. ·4··.··:········ 163 244.1. Description…...........…..…...…….…….…,163 244.2. Usage,,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,…,,…,…,…,,163 2.4.4.3. Example 164 2.44.4. Hooking a heterogeneous reaction Rate Udf to ANSYS Fluent………………166 2.4.5 166 2. 4.5.1. Description.................. 166 2.4.5.2. Usage... ·······:··· .167 24.5.3. Example........,..,.,,…,,……,168 2.4.5.4. Hooking a Linearized Mass Transfer UDF to ANSYS Fluent 169 24.6. 169 2.4.6.1. Description….….….….….…...,.,,.….……….….….,...,169 24.6.2. Usage,,…,,…,…,…,…,…,…,,…,…,…,…,…………,169 24.6.3. Example… 170 Release 17.0-O SAS /P Inc. All rights reserved. -Contains proprietary and confidential information of ansys inc and its subsidiaries and affiliates

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