Unit vector from cell centroid to the boundary face -- CFD Online Discussion Forums

October 11, 2020, 04:00	Unit vector from cell centroid to the boundary face	#1
Achini Member L.A.Isanka Join Date: Jul 2020 Posts: 55 Rep Power: 5	Hello! I am planning to model particle attractions with the channel wall. To get the force exerted by the channel wall to the particle, I'm planning to use DPM_BODYFORCE macro. In order to get the resultant force, I need to get the unit vector from a cell to the boundary. how can i find it? also how can i create a loop to loop over the cells in the boundary? I'd be greatful if anyone could help me with this. Thank you! Last edited by Achini; October 11, 2020 at 04:00. Reason: fluent, udf, vector, loop, position vector

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