Search found 1624 matches

by David Parker
Wed Apr 24, 2024 10:45 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Prescribe pressure at inlet (Dirichlet)
Replies: 3
Views: 1041

Re: Prescribe pressure at inlet (Dirichlet)

Hello,

Yes, sorry, it seems that Type: Dir only sets velocity.

You will need to use GenBC.

Cheers,
Dave
by David Parker
Tue Apr 23, 2024 1:53 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: error in the simulation
Replies: 12
Views: 2583

Re: error in the simulation

Hi Simon, I looked at your simulation results, everything looks ok, no NaNs $ tail histor.dat 559 2.558E+05 3.826E-01 ( 7) 1.298E-02 1.060E-03 < 30364-13| 12> [ 0 - 0] 559 2.559E+05 2.098E-02 ( -5) 1.458E-03 5.822E-04 < 28316-14| 14> [ 0 - 0] 559 2.560E+05 3.690E-03 ( -12) 5.683E-04 3.003E-04 < 1854...
by David Parker
Tue Apr 23, 2024 11:35 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: DICOM RTSS to .ctgr conversion
Replies: 7
Views: 1737

Re: DICOM RTSS to .ctgr conversion

HI fdekerm,

A GitHub repository with README, very nice!

What exactly is wrong with the .pth files?

Note that you will not be able to use the .pth files to segment an image.

Cheers,
Dave
by David Parker
Tue Apr 23, 2024 11:03 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Prescribe pressure at inlet (Dirichlet)
Replies: 3
Views: 1041

Re: Prescribe pressure at inlet (Dirichlet)

Hello,

You can also use GenBC in svFSI (see https://github.com/SimVascular/svFSI-Te ... oupling-BC).

However, it would be easier to use

Code: Select all

Add BC: inlet {
Type: Dir
Time dependence: Steady
Value: 100.0
}
Try it and see if it works.

Cheers,
Dave
by David Parker
Mon Apr 22, 2024 5:10 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: What's the meaning of histor.dat
Replies: 1
Views: 392

Re: What's the meaning of histor.dat

Hi Lina, The histor.dat file contains equation names, iteration count, execution time, nonlinear residuals and the number of linear solve iterations. There is no detailed description of these values as far as I know. You will need to look at the source code grep FSILS svFSIplus/Code/Source/svFSI/* t...
by David Parker
Mon Apr 22, 2024 4:31 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Error in Create data file for simulation
Replies: 9
Views: 1588

Re: Error in Create data file for simulation

Hi Manideep,

Please upload your SV files someplace I can download them and I'll have a look.

Cheers,
Dave
by David Parker
Mon Apr 22, 2024 4:29 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: not responding when running simulation
Replies: 1
Views: 361

Re: not responding when running simulation

Hello,

What is your OS? What is the svSolver version?

Did the simulation create any restart files? Is there a histor.dat file?

Cheers,
Dave
by David Parker
Mon Apr 22, 2024 4:25 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Problem simulating simple geometries (negative pressures)
Replies: 12
Views: 3215

Re: Problem simulating simple geometries (negative pressures)

Hi Flo,

I renamed the inlet and outlet faces so I could better understand the model face names and inadvertently switched the inlet to be the face with the larger area.

Cheers,
Dave
by David Parker
Fri Apr 19, 2024 3:55 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: error in the simulation
Replies: 12
Views: 2583

Re: error in the simulation

Hi Simon, It's not clear what is going on here, the nonlinear residuals look good and then you suddenly get a NaN, doesn't seem to be a time step problem. What do your results look like before the failure? Upload you SV Simulations directory someplace I can download it and I'll have a look. Cheers, ...