how to use CFX coupling with external Fortran procedure

windfire · March 15, 2016, 22:31

hi everyone,i want to use CFX compute waterhammer,i have use Fortran compile method of characteristics,i want to simulate 1D-3D,but MPCCI did't have port to connect CFX and Fortran, can use CEl or CCL to compile method of characteristics and compute in CFX?
thank you !

ghorrocks · March 16, 2016, 02:53

I would recommend you use a user defined CEL function to do your boundary condition between the 1D and 3D sections, and you put your MOC code in the fortran for the CEL function.

windfire · March 16, 2016, 03:50

if I want to update the boundary condition every time step according to the results calculated by Fortran, then CFX passes the simulated values to Fortran in next step, how can I make this kind of two way coupling with CEL function?

ghorrocks · March 16, 2016, 03:52

Put your fortran in the routine which defines the boundary condition for CFX. To do this you need to define a user variable with fortran in CFX. Then you do not need to pass values - the fortran will run as a part of CFX.

March 15, 2016, 22:31	how to use CFX coupling with external Fortran procedure	#1
windfire New Member Ian Join Date: Oct 2013 Posts: 23 Rep Power: 13	hi everyone,i want to use CFX compute waterhammer,i have use Fortran compile method of characteristics,i want to simulate 1D-3D,but MPCCI did't have port to connect CFX and Fortran, can use CEl or CCL to compile method of characteristics and compute in CFX? thank you !

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March 16, 2016, 02:53		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	I would recommend you use a user defined CEL function to do your boundary condition between the 1D and 3D sections, and you put your MOC code in the fortran for the CEL function.

March 16, 2016, 03:50		#3
windfire New Member Ian Join Date: Oct 2013 Posts: 23 Rep Power: 13	if I want to update the boundary condition every time step according to the results calculated by Fortran, then CFX passes the simulated values to Fortran in next step, how can I make this kind of two way coupling with CEL function?

March 16, 2016, 03:52		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Put your fortran in the routine which defines the boundary condition for CFX. To do this you need to define a user variable with fortran in CFX. Then you do not need to pass values - the fortran will run as a part of CFX.