{"id":394880,"date":"2024-11-22T02:53:26","date_gmt":"2024-11-22T02:53:26","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/udf-error-5\/"},"modified":"2024-11-22T02:53:26","modified_gmt":"2024-11-22T02:53:26","slug":"udf-error-5","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/udf-error-5\/","title":{"rendered":"UDF Error"},"content":{"rendered":"<p>&lt;p&gt;I wrote the following UDF for heteregeneous reactions in a case for multiphase flow.&nbsp;&lt;\/p&gt;&lt;div&gt;#include &#8220;udf.h&#8221;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;\/* Define constants *\/&lt;\/div&gt;&lt;div&gt;#define R 1.987&lt;\/div&gt;&lt;div&gt;\/* Universal gas constant in cal\/(mol*K) *\/&lt;\/div&gt;&lt;div&gt;#define Pre 1&lt;\/div&gt;&lt;div&gt;\/* Pre-exponential factor in m^3\/(mol*s) *\/&lt;\/div&gt;&lt;div&gt;#define EA 5000&lt;\/div&gt;&lt;div&gt;\/* Activation energy in cal\/mol *\/&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;\/* Define phase indices *\/&lt;\/div&gt;&lt;div&gt;#define liquid_index 3&lt;\/div&gt;&lt;div&gt;\/* Index for liquid phase *\/&lt;\/div&gt;&lt;div&gt;#define gas_index 2&lt;\/div&gt;&lt;div&gt;\/* Index for gas phase B *\/&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;\/* Heterogeneous reaction rate definition *\/&lt;\/div&gt;&lt;div&gt;DEFINE_HET_RXN_RATE(sj_reaction_rate, c, t, r, mw, yi, rr, rr_t)&lt;\/div&gt;&lt;div&gt;{&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; \/* Get the temperature of the liquid phase *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; real T_liquid = C_T(c, t); \/* Temperature in K *\/&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; \/*Calculate the concentration of A in the liquid phase *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; real A_conc = C_YI(c, t, liquid_index);&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; \/* Calculate the reaction rate *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; *rr = Pre * exp(-EA \/ (R * T_liquid)) * A_conc;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; \/* Optional: Store additional information if needed *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; C_UDMI(c, t, 0) = Pre; \/* Store pre-exponential factor *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; C_UDMI(c, t, 1) = EA; \/* Store activation energy *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; C_UDMI(c, t, 2) = R; \/* Store gas constant *\/&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; C_UDMI(c, t, 3) = T_liquid; \/* Store temperature *\/&lt;\/div&gt;&lt;div&gt;}&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221; data-olk-copy-source=&#8221;MessageBody&#8221;&gt;I am getting the following&nbsp; warning upon compiling my UDF with the built-in compiler.&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;scons: warning: No version of Visual Studio compiler found &#8211; C\/C++ compilers most likely not set correctly&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;File &#8220;C:\\Users\\&#8230;.\\libudf\\win64\\3ddp_host\\SConstruct&#8221;, line 20, in &lt;module&gt;&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;Compiler path: &#8220;C:\\PROGRA~1\\ANSYSI~1\\v241\\fluent&#8221;\\ntbin\\clang\\bin\\clang-cl&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;Linker &nbsp; path: &#8220;C:\\PROGRA~1\\ANSYSI~1\\v241\\fluent&#8221;\\ntbin\\clang\\bin\\lld-link&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;After compiling, I click load and then initialize and run the simulation. Then I get a fatal error:&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;Node 1: Process 6996: Received signal SIGSEGV.&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;Node 2: Process 27464: Received signal SIGSEGV.&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;Node 0: Process 26448: Received signal SIGSEGV.&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;Node 3: Process 10824: Received signal SIGSEGV.&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;==============================================================================&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;rgb(12, 100, 192)&#8221;&gt;&nbsp;Error in the fluent (fl) process : ended abnormally&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;&nbsp;&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;div&gt;&lt;p class=&#8221;x_xmsonormal&#8221;&gt;&lt;span data-ogsc=&#8221;black&#8221;&gt;Other than checking the box for Setup Compilation Environment for UDF in Fluent Launcher, do I need to anything else?&lt;\/span&gt;&lt;\/p&gt;&lt;\/div&gt;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394880","topic","type-topic","status-publish","hentry","topic-tag-fluent-udf-multi-phase"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["437146"],"_bbp_author_ip":["47.188.202.145"],"_btv_view_count":["304"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["394880"],"_bbp_forum_id":["27792"],"_bbp_engagement":["437146"],"_bbp_voice_count":["1"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["394881"],"_bbp_last_active_id":["394881"],"_bbp_last_active_time":["2024-11-22 02:55:05"]},"test":"sjohnbenchmark-space-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394880\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=394880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}