Search found 1747 matches

by David Parker
Tue Dec 17, 2024 12:29 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: help with reslicing
Replies: 5
Views: 701

Re: help with reslicing

Hello,

I don't see any problem in the logs, maybe the volume rendering is off.

Try increasing the reslice plane size using the Size button to see if the anatomical features make sense.

You can also send me a link to the cleaned image data if you can.

Cheers,
Dave
by David Parker
Mon Dec 16, 2024 11:32 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: FSI: pressure and prestress initialization
Replies: 1
Views: 234

Re: FSI: pressure and prestress initialization

Hi Ione,

Is this an FSI simulation using CMM or ALE ?

There are examples for using prestress for CMM here https://github.com/SimVascular/svMultiP ... /cases/cmm.

Cheers,
Dave
by David Parker
Fri Dec 13, 2024 11:21 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Question: Why is there a pressure drop in a 1D simulation using a straight pipe? Hi everyone,
Replies: 1
Views: 228

Re: Question: Why is there a pressure drop in a 1D simulation using a straight pipe? Hi everyone,

Hello, 1D simulations are a finite element approximation to a nonlinear problem. Vessel geometry is modeled as cylinders. A correct solution depends on the number of elements, time step, etc. Depending on the complexity of the problem , it may take hundreds of time steps for the simulation to conver...
by David Parker
Thu Dec 12, 2024 10:35 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: svFSI tutorial CMM 01-pipe_RCR
Replies: 6
Views: 620

Re: svFSI tutorial CMM 01-pipe_RCR

Thank you Ignacio!

The svFSIplus solver has been renamed to svMultiPhysics, repository and documentation reflect this name change.

Cheers,
Dave
by David Parker
Mon Dec 09, 2024 6:40 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: svFSIplus: Text file containing results empty
Replies: 3
Views: 423

Re: svFSIplus: Text file containing results empty

Hello, You can use centerline geometry to align slices along a vessel. Centerlines can be computed using the SV Modeler Tool or using the SV Python API (see https://simvascular.github.io/documentation/python_interface.html#vmtk_module). However, I don't know how to use centerlines geometry to positi...
by David Parker
Sat Dec 07, 2024 2:55 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: svFSIplus: Text file containing results empty
Replies: 3
Views: 423

Re: svFSIplus: Text file containing results empty

Hello,

This is a bug we just discovered (see https://github.com/SimVascular/svMultiP ... issues/309), will try to get a fix for it next week.

Cheers,
Dave
by David Parker
Wed Dec 04, 2024 11:13 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: About installation on Ubuntu 22.04.5 LTS
Replies: 6
Views: 753

Re: About installation on Ubuntu 22.04.5 LTS

Hi Bojian,

svOneDSolver should work on Ubuntu 22 although there is no installer for it so you will need to build from source.

Cheers,
Dave
by David Parker
Tue Dec 03, 2024 12:56 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: help with reslicing
Replies: 5
Views: 701

Re: help with reslicing

Hello,

I'm not sure what is going on here.

Is the MRI acquisition in the standard image planes ?

When SV comes up it opens a window. When you read in the image data some messages are printed out. Please post those messages here.

Cheers,
Dave
by David Parker
Tue Dec 03, 2024 12:39 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Keywords for svpost in .slurm files
Replies: 8
Views: 2099

Re: Keywords for svpost in .slurm files

Hi Alessandro, Is there a bug in the create-flow-file code? How can i found it and eventually fix it? I wrote this program for a user to mimic what SV does so the program is expecting data in a certain location. It uses code that I extracted from SV and that code doesn't do any error checking. You c...