Herschel-Bulkley problem -- CFD Online Discussion Forums

November 17, 2009, 08:40	Herschel-Bulkley problem	#1
Mulder New Member Jan Mulder Join Date: Nov 2009 Posts: 1 Rep Power: 0	Hi all, I am trying to model concrete. I use Herschel-Bulkley as viscosity model. My calculation either gives an error or becomes instable, but only when I use tau0. I have a 2D model of a pipe with a velocity on one side and a pressure on the other side. I have found examples with Herrschel-Bulkley model but not in which tau0 is not 0. Which I find strange Does anybody have a similar problem?

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