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Question on Blood Vessel example

Posted Jul 29, 2010, 2:01 p.m. EDT Bioengineering 1 Reply

Dan Peters
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In COMSOL's Fluid-Structure Interaction in a Network of Blood Vessels example on page 10, they have us type in -T_x_ns in the Fx edit field. I assume this is a dependent variable solved for by the Fluids part of the model and is coupled into the structure part of the model. I cannot find where this variable is defined. I searched all the manuals and nothing comes up.

I've got a similar model and COMSOL doesn't recognize that variable when I use it in that field.

Thanks,
Dan
1 Reply Last Post Jul 29, 2010, 4:07 p.m. EDT
Danial Tz
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Posted: 1 decade ago Jul 29, 2010, 4:07 p.m. EDT

In COMSOL's Fluid-Structure Interaction in a Network of Blood Vessels example on page 10, they have us type in -T_x_ns in the Fx edit field. I assume this is a dependent variable solved for by the Fluids part of the model and is coupled into the structure part of the model. I cannot find where this variable is defined. I searched all the manuals and nothing comes up.

I've got a similar model and COMSOL doesn't recognize that variable when I use it in that field.

Thanks,
Dan


It is the fluid force on the structure, as defined in Comsol 3.5a. However, in new comsol it has its own new name, which you can try to find by plotting a line plot and search for the variable names list (total fluid force, or something like that).

Best,
Danial
[QUOTE] In COMSOL's Fluid-Structure Interaction in a Network of Blood Vessels example on page 10, they have us type in -T_x_ns in the Fx edit field. I assume this is a dependent variable solved for by the Fluids part of the model and is coupled into the structure part of the model. I cannot find where this variable is defined. I searched all the manuals and nothing comes up. I've got a similar model and COMSOL doesn't recognize that variable when I use it in that field. Thanks, Dan [/QUOTE] It is the fluid force on the structure, as defined in Comsol 3.5a. However, in new comsol it has its own new name, which you can try to find by plotting a line plot and search for the variable names list (total fluid force, or something like that). Best, Danial

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