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Simulating burning wood

    • October 21, 2025 at 10:25 am
      ge57ran
      Subscriber

      Hi 

      I was wondering if there is a way to simulate a wooden beam with one sided charring (burning), including material decay and density change and other material properties. 

      Thanks in advance 

    • October 23, 2025 at 4:35 pm
      jcooper
      Ansys Employee

      Hi:

      The best way to do this is by using a combined porous media and UDF approach.  The approach is documented in the following paper:

      Numerical simulation of a burning cigarette during puffing
      Mohammad S. Saidi1, Mohammad R. Hajaligol, Firooz Rasouli

      J. Anal. Appl. Pyrolysis 72 (2004) 141–152

      I am not sure if you have access to the ANSYS knowledge base articles, but a small test case can be found in Article 000087117

      Regards,

      Judy

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