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why do we have to add a dynamic viscosity to a type of solid material

Posted Apr 28, 2015, 5:06 a.m. EDT Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.1, Version 5.3 4 Replies

Min Liu
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Hi. When I add a solid material, it reminds me to add a dynamic viscosity to the material. It makes me feel confused as I think that a solid material does not have such a property .
Can someone help me solve this problem?
Thank you.
4 Replies Last Post Jun 4, 2017, 5:26 p.m. EDT
COMSOL Moderator

Hello Min Liu

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Areef Ahmad
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Posted: 9 years ago Sep 11, 2015, 11:05 a.m. EDT
same problem here...for aluminium selection, i was forced to give a value to dynamic viscosity...dont know what to do
same problem here...for aluminium selection, i was forced to give a value to dynamic viscosity...dont know what to do
Murad Hossain
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Posted: 9 years ago Sep 11, 2015, 11:08 a.m. EDT
same problem here :(
same problem here :(
Jeff Hiller COMSOL Employee

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Posted: 9 years ago Sep 11, 2015, 11:23 a.m. EDT
Make sure to turn off the fluid flow physics in the domain where you don't want it solved.
Jeff
Make sure to turn off the fluid flow physics in the domain where you don't want it solved. Jeff
Yayun Du
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Posted: 8 years ago Jun 4, 2017, 5:26 p.m. EDT
While I am doing the simulation of a fingertip which is touching a flat surface and when it is moving, so you mean I need to add the dynamic viscosity of the skin so that I will have a feeling how the skin is connected to the surface when it is moving?
While I am doing the simulation of a fingertip which is touching a flat surface and when it is moving, so you mean I need to add the dynamic viscosity of the skin so that I will have a feeling how the skin is connected to the surface when it is moving?

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