Different gravity condition along the length of flume

- January 27, 2023 at 7:37 am
  
  Govind Mishra
  Subscriber
  
  I have a horizontal rectangular channel of length 20 m . How can i assign different gravity condition in initial 10 m and different gravity condition in last 10 m ?
- January 27, 2023 at 8:23 am
  
  SRP
  Subscriber
  
  Hi,
  I suggest to create a UDF using DEFINE_SOURCE
  Thank you
  Saurabh
- January 27, 2023 at 2:12 pm
  
  Rob
  Ansys Employee
  
  With difficulty, gravity can't be a function of a field variable so it's nominally "constant". As SRP puts, you can use a source term to add momentum to mimic variable gravity.
  If you're using DPM have a look at the DPM Force UDF macros.

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