Search found 1772 matches

by David Parker
Tue Feb 18, 2025 11:20 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Multiple Velocity Inlets for 1D solver
Replies: 1
Views: 101

Re: Multiple Velocity Inlets for 1D solver

Hi Patrick, The 1D solver currently supports a single inflow boundary condition per model. Looking at the code it seems that the solver does support the input of multiple models but I don't think that this has ever been tested. We are currently updatinf the code to read JSON files for input but ther...
by David Parker
Mon Feb 10, 2025 9:53 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: SIMULATION FILES CANNOT BE CREATED
Replies: 6
Views: 847

Re: SIMULATION FILES CANNOT BE CREATED

Hi Bohdan,

Try using the 2019 release of svSolver here https://simtk.org/frs/download_confirm. ... oup_id=188.

The latest version seems to have problems on some Windows laptops, have not been able to reproduce on my laptop.

Cheers,
Dave
by David Parker
Thu Feb 06, 2025 1:22 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: 4D Flow MRI Data
Replies: 1
Views: 394

Re: 4D Flow MRI Data

Hi Danish,

I believe that the MITK framework that SimVascular uses can import 4D MRI data but I have never tried it. Note that SimVascular can only operate on a single acquisition time step.

If you have a HIPPA compliant MRI 4D dataset you can share with me then I will test.

Cheers,
Dave
by David Parker
Wed Feb 05, 2025 11:06 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Simulate the airflow with the ROM simulation tool
Replies: 2
Views: 703

Re: Simulate the airflow with the ROM simulation tool

Hi Quentin, I would like to know if it is possible to simulate airflow in the bronchial tree using the ROM Simulation tool. From my perspective, there don't seem to be significant differences between simulating blood flow and simulating airflow in a 1D model, as it seems that the type of flow (lamin...
by David Parker
Wed Feb 05, 2025 10:46 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: svFSIplus: Text file containing results empty
Replies: 14
Views: 1584

Re: svFSIplus: Text file containing results empty

Hello, I ran the simulation files you provided in https://drive.google.com/drive/folders/1OaRYG-Wh9oTshuJUmKumAFHkctRsloKF?usp=drive_link no problem --------------------------------------------------------------------- Eq N-i T dB Ri/R1 Ri/R0 R/Ri lsIt dB %t -----------------------------------------...
by David Parker
Tue Feb 04, 2025 11:48 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: sv_auto_lv_modeling model weights no longer available
Replies: 2
Views: 443

Re: sv_auto_lv_modeling model weights no longer available

Hi,

I believe that the cardiac modeling has been re-implemented. Try contacting Fanwei Kong fwkong.stanford.edu about this.

Cheers,
Dave
by David Parker
Tue Feb 04, 2025 11:40 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Obtaining volumetric values from 3d model
Replies: 3
Views: 495

Re: Obtaining volumetric values from 3d model

Hi William,

Just copy the script that I posted.

Cheers,
Dave
by David Parker
Tue Jan 14, 2025 8:12 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Velocity and pressure units
Replies: 5
Views: 1046

Re: Velocity and pressure units

Hi Gianmarco,

If the results are not what you expect then it is usually a good idea to simplify the simulation (i.e. BCs) so you can better understand the results.

Cheers,
Dave

P.S. I'll not be answering Forum questions the next 2-3 weeks.
by David Parker
Tue Jan 14, 2025 12:31 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: svFSIplus: Text file containing results empty
Replies: 14
Views: 1584

Re: svFSIplus: Text file containing results empty

Hello,

So the boundary integral output is working ? And now the problem is that using trilinos is failing ?

Attach the solver xml file for the trilinos simulation.

Cheers,
Dave