Search found 25 matches

by Yun Shi
Tue Apr 17, 2018 8:01 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Prescribe outlet boundary condition with flow file
Replies: 7
Views: 573

Re: Prescribe outlet boundary condition with flow file

The problem of parabolic velocity profile imposed on outlet truly exists. Can this problem be partly resolved by adding cylinders to the end of visceral arteries?
model.png
model.png (81.03 KiB) Viewed 550 times
by Yun Shi
Mon Apr 16, 2018 8:22 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Prescribe outlet boundary condition with flow file
Replies: 7
Views: 573

Re: Prescribe outlet boundary condition with flow file

Thank you, Weiguang! It is difficult to estimate the capacitance and the ratio of proximal and distal resistance of three-elements Windkessel model. Thus, I can hardly prescribe RCR to approximate the flow waveform obtained from PCMRI. Can you tell me something in details why it is not recommend to ...
by Yun Shi
Sat Apr 14, 2018 10:37 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Prescribe outlet boundary condition with flow file
Replies: 7
Views: 573

Re: Prescribe outlet boundary condition with flow file

Justin mentioned the outlet could be set velocity=0 in prescribed velocities surface so as to occlude the outlet.Does it mean that prescribed velocities can not only be used to prescribe the inlet BC but also the outlet BC? Link to https://simtk.org/plugins/phpBB/viewtopicPhpbb.php?f=188&t=8915&p=0&...
by Yun Shi
Sat Apr 14, 2018 9:39 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Prescribe outlet boundary condition with flow file
Replies: 7
Views: 573

Prescribe outlet boundary condition with flow file

I can measure the volumetric flow rate of outlets with PCMRI. Can the outlet boundary condition be prescribed with flow file instead of RCR in next version of SimVascular?
by Yun Shi
Mon Mar 26, 2018 6:51 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Fail to launch SimVascular for linux
Replies: 29
Views: 5803

Re: Fail to launch SimVascular for linux

Thank you, Hongzhi! SimVascular is successfully installed in Ubuntu 16.04 as I follow your instruction.
by Yun Shi
Sun Mar 25, 2018 3:17 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Fail to launch SimVascular for linux
Replies: 29
Views: 5803

Re: Fail to launch SimVascular for linux

Thank you, Gabriel! After I run "sudo apt-get install libgstreamer-plugins-base0.10-dev" again, SimVascular is successfully installed in Ubuntu 16.04. That may be due to changing host server from United States to China in Ubuntu.
by Yun Shi
Sat Mar 24, 2018 2:35 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Fail to launch SimVascular for linux
Replies: 29
Views: 5803

Fail to launch SimVascular for linux

I fail to launch SimVascular 3.0(2017-8-14) after installation in Ubuntu 16.04 LTS. Ubuntu 16.04 is run with VMware workstation 14 player in windows 10. The terminal reads: Application launch failed...stopping the plugin framework timed out. I have read tutorial and installed lib and MPI.
by Yun Shi
Fri Feb 23, 2018 12:07 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Simulation of big mesh size failed to converge.
Replies: 2
Views: 379

Re: Simulation of big mesh size failed to converge.

Thank you, Justin! The highest velocity appears at renal artery stenosis. The mesh edge size of coarse mesh is 1.33 times of the fine mesh at renal stenosis. Thus, I will try to run simulation by reducing the timestep size of fine mesh to a half of the coarse mesh.