why porosity contour is not restricted just in porous zone?

- July 16, 2019 at 11:22 pm
  
  Weiqiang Liu
  Subscriber
  
  Hi all,
  
  I posted a lot threads before to ask questions about a soot combustion project. Now I realized I have a lot of problems for the case. I am going to solve it one by one.
  
  I defined a UDM to store porosity in the domain. After 0.1 s time step, I checked the distribution of porosity indicated as follows:
  
  I only set two zones as porous zone in my model. However, I noticed from the contour that porosity distribution is not restricted in just porous zones, distribution of porosity also extended to non-porous zones. This is absolutely unreasonable.
  
  Can anybody give me some suggestions why this happens?
  
  Best regards.
  
  Weiqiang
- July 16, 2019 at 11:46 pm
  
  Weiqiang Liu
  Subscriber
  
  by the way, I used interface boundary conditions for between different zones and UDS equation is only solved in porous zones.