Search found 1691 matches

by David Parker
Sun Mar 17, 2019 3:46 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Particle residence time
Replies: 1
Views: 167

Re: Particle residence time

Hello Dai, SimVascular does not calculate particle residence time, that needs to be preformed on simulation results (velocity field) using post-processing software (e.g. ParaView). The Shadden Lab FlowVC software can calculate particle residence time. See https://shaddenlab.berkeley.edu/software.htm...
by David Parker
Fri Mar 15, 2019 10:38 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Solver blows up when applying inflation layers
Replies: 5
Views: 368

Re: Solver blows up when applying inflation layers

Hi Dylan,

What version of SimVascular / svSolver and which OS are you using?

It might be that there are bad elements (Jacobian <= 0) in your mesh. You can check using ParaView.

If you want you can put your project on DropBox and I'll take a look.

Cheers,
Dave
by David Parker
Wed Mar 13, 2019 11:13 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Measuring the centerline
Replies: 8
Views: 1274

Re: Measuring the centerline

Hi Nafiseh, I have created a Python script called contour_distance.py that is used to calculate the distance between the centers of contours created in the SimVascular SV 2D Segmentation s module. It is not exactly what you want but it is close. I will be adding other scripts soon, need to create a ...
by David Parker
Wed Mar 13, 2019 10:12 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Custom analytical shape inlet velocity profile
Replies: 2
Views: 235

Re: Custom analytical shape inlet velocity profile

Hi Dylan, You can use the bct.dat file to apply a patient specific velocity profile to an inlet. See http://simvascular.github.io/docsFlowSolver.html#bctfile. The SV Simulation module will create a bct.dat and bct.vtp files when you select Create Data Files for Simulation . After doing that you repl...
by David Parker
Tue Mar 12, 2019 10:47 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Multi-Body Question
Replies: 7
Views: 347

Re: Multi-Body Question

Hi Anthony, Thanks for the new models! I was able to load the all models into SimVascular and extract the faces correctly, although they were not classified correctly as cap/wall, had to manually set the face names and type (cap/wall). The CentreAlign model has duplicate faces for the interior becau...
by David Parker
Sun Mar 10, 2019 3:03 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: 0% SV simulation
Replies: 3
Views: 242

Re: 0% SV simulation

Hi Nolan, There are some known problems with running simulations from the GUI. Before I can help you I need to know what version of SimVascular you are running and on which OS. Have a look at these links, they may apply to the problems you are experiencing https://simtk.org/plugins/phpBB/viewtopicPh...
by David Parker
Thu Mar 07, 2019 3:06 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Measuring the centerline
Replies: 8
Views: 1274

Re: Measuring the centerline

Hi Nafiseh,

There is currently no functionality in SimVascular GUI to measure the distance between control points along a center line.

It might be possible to do this using the SimVascular Python interface, I will look into that.

Cheers,
Dave
by David Parker
Tue Mar 05, 2019 9:31 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Multi-Body Question
Replies: 7
Views: 347

Re: Multi-Body Question

Hi Anthony, I was able to read in the Parasolid files (after renaming them to ._xmt_txt) but the SV Model module did not extract the faces correctly. The models are very small so I think there may be a scaling issue. Could you please scale them by 100 and then write them out as ._xmt_txt files and u...
by David Parker
Tue Mar 05, 2019 8:01 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Error when launching svSolver (2019.01.19) from command line in Ubuntu 18.04
Replies: 5
Views: 544

Re: Error when launching svSolver (2019.01.19) from command line in Ubuntu 18.04

Hi Maria,

You are probably having problems running from the GUI because it is not using mpiexec.mpich. You can set which MPI executable to use from the Window menu in the SimVascular toolbar and then selecting Preferences -> SimVascular Simulation.

Cheers,
Dave
by David Parker
Tue Mar 05, 2019 11:01 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Simulation Not Running
Replies: 28
Views: 7135

Re: Simulation Not Running

Glad you are up and running!

I will improve the way SimVascular checks for MPI and to display the appropriate informational messages.

Cheers,
Dave