- **FLUENT**
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- - **bubble diameter distribution**
(*https://www.cfd-online.com/Forums/fluent/80458-bubble-diameter-distribution.html*)

bubble diameter distributionHello,
I am working on water-air flow thorugh horizontal channel. I use euler-euler mixture model for that. I want to give a bubble diameter distribution along radial direction instead of inserting a constant diameter value in the related menu. ( phases > secondary phase > diameter ) Below you can find the trial udf I wrote for that. y is the radial axis. I have the half of the channel thus y has the range between -r and +r, where r is the radius of the channel. #include "udf.h" DEFINE_PROPERTY(bubble_diameter,c,t) { real y; real diameter= P_DIAM(c,t); if (y < 0) diameter = 0.001; else diameter = 0.005; return diameter ; } I can interprate the udf successfully but after I initialize, it gives me the following error: FLUENT received fatal signal (ACCESS_VIOLATION) 1. Note exact events leading to error. 2. Save case/data under new name. 3. Exit program and restart to continue. 4. Report error to your distributor. Error Object: () I think I have problems in the udf. I will be glad if someone could tell me what mistake I am doing. Thanks in advance... |

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