Dear Kamil, You can define the inlet and outlet of your pipe to be periodic and drive the flow through a body force. For an example of this, you can look at the ChanFlow_m8_BodyForce.xml regression test for the IncNavierStokesSolver in which the forcing is specified using <FORCING> <FORCE TYPE="Body"> <BODYFORCE> BodyForce </BODYFORCE> </FORCE> </FORCING> and the forcing function is prescribed using <FUNCTION NAME="BodyForce"> <E VAR="u" VALUE="2" /> <E VAR="v" VALUE="0" /> </FUNCTION> Kind regards, Chris On 21/08/14 10:28, Kamil Ozden wrote:

Dear All,

Is it possible to define periodic boundary condition for pipe flow in Nektar++? If yes, may I succeed it by specifying a pressure gradient in axial direction of pipe?

Regards, Kamil

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