Hi all, I have been trying to implement the stabilised outflow BCs as given by DOng and included in the User guide as follows <R VAR="u" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="D0/TimeStep"/> <R VAR="v" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="D0/TimeStep"/> <R VAR="p" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="1.0/(D0*Kinvis)"/> What does the parameter Do represent? Is it a flow quantity?Also, how do I set it within the xml file? Sincerely, -- *Amitvikram Dutta* Graduate Research Assistant Fluid Mechanics Research Lab Multi-Physics Interaction Lab University of Waterloo
Have a look at one of Dong's his papers referring to it. https://arxiv.org/pdf/1506.01320.pdf. page 7. the dimensional units are seconds. "plays the role of a convection velocity scale at the outflow boundary" you can also set the variable in the parameters section i.e. <PARAMETERS> <P> Do = 1.2 </P> </PARAMETERS> ~Kurt On Mon, Aug 20, 2018 at 8:03 AM Amitvikram Dutta <amitvdutta23@gmail.com> wrote:
Hi all,
I have been trying to implement the stabilised outflow BCs as given by DOng and included in the User guide as follows <R VAR="u" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="D0/TimeStep"/>
<R VAR="v" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="D0/TimeStep"/>
<R VAR="p" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="1.0/(D0*Kinvis)"/>
What does the parameter Do represent? Is it a flow quantity?Also, how do I set it within the xml file?
Sincerely, --
*Amitvikram Dutta*
Graduate Research Assistant
Fluid Mechanics Research Lab
Multi-Physics Interaction Lab
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-- Kurt Sansom
participants (2)
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Amitvikram Dutta
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Kurt Sansom