wall suction udf

July 11, 2008, 04:56

Dear All, I am trying to implement a constant wall suction boundary condition with a velocity of v=-0.001 m/s in a simple 2d unsteady turbulent flow. I could not find amoung the boundary conditions any condition that will satisfy u=0, v=constant except for inlet. I have to use UDF for this purpose! Can any one help me with this UDF as I am very new to UDF and how to compile it. Thanks

July 11, 2008, 12:00

But you could still use inlet condition with negative velocity right!!!!!!!!!!

Why you want to make you life complicate using UDF..!!!!

July 17, 2008, 07:09

Dear All, I am trying to implement a constant wall suction boundary condition with a velocity of v=-0.001 m/s in a simple 2d unsteady turbulent flow. I could not find amoung the boundary conditions any condition that will satisfy u=0, v=constant except for inlet. I have to use UDF for this purpose! Can any one help me with this UDF as I am very new to UDF and how to compile it. Thanks

July 11, 2008, 04:56	wall suction udf	#1
osman turan Guest Posts: n/a	Dear All, I am trying to implement a constant wall suction boundary condition with a velocity of v=-0.001 m/s in a simple 2d unsteady turbulent flow. I could not find amoung the boundary conditions any condition that will satisfy u=0, v=constant except for inlet. I have to use UDF for this purpose! Can any one help me with this UDF as I am very new to UDF and how to compile it. Thanks

July 11, 2008, 12:00	Re: wall suction udf	#2
umesh javiya Guest Posts: n/a	But you could still use inlet condition with negative velocity right!!!!!!!!!! Why you want to make you life complicate using UDF..!!!!

July 17, 2008, 07:09	Re: wall suction udf	#3
osman turan Guest Posts: n/a	Dear All, I am trying to implement a constant wall suction boundary condition with a velocity of v=-0.001 m/s in a simple 2d unsteady turbulent flow. I could not find amoung the boundary conditions any condition that will satisfy u=0, v=constant except for inlet. I have to use UDF for this purpose! Can any one help me with this UDF as I am very new to UDF and how to compile it. Thanks

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