Search found 60 matches
- Fri Jul 12, 2024 2:38 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: Errors and questions with ROMSimulations in SimVascular
- Replies: 1
- Views: 251
Re: Errors and questions with ROMSimulations in SimVascular
Hi Lina, I removed a couple of zeros from your "Material Parameter 1," and it runs nicely now. Regarding your questions: 1) The STENOSIS detection is performed automatically and indicates variations in your branch's cross-sectional area. This doesn't necessarily mean that there is an anatomical sten...
- Tue Feb 27, 2024 6:25 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: Units of shear constant in cgs
- Replies: 2
- Views: 422
Re: Units of shear constant in cgs
The shear correction factor of 0.833=5/6 is dimensionless and explained in this paper: https://doi.org/10.1016/j.cma.2005.11.011
- Tue Feb 27, 2024 6:22 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: How to get branch outflows from svzerodsolver
- Replies: 5
- Views: 450
Re: How to get branch outflows from svzerodsolver
Can you open an issue for the seg fault (uploading the input file on GitHub)? Thank you!
For the outlets, you can use keys like "flow:branch18_seg2:RESISTANCE_10" or "flow:branch17_seg0:RESISTANCE_9". Make sure the branch/segment is connected to the respective outlet.
For the outlets, you can use keys like "flow:branch18_seg2:RESISTANCE_10" or "flow:branch17_seg0:RESISTANCE_9". Make sure the branch/segment is connected to the respective outlet.
- Mon Feb 26, 2024 10:20 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: Pressures are additive over multiple cycles error
- Replies: 2
- Views: 378
Re: Pressures are additive over multiple cycles error
You probably have RCR boundary conditions. Since they include a capacitor, it can take several cardiac cycles to be "charged." This means that when you initialize your simulation from zero velocity and pressure, you will see the pressure building up over several cardiac cycles as you did. The time c...
- Mon Feb 26, 2024 10:13 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: How to get branch outflows from svzerodsolver
- Replies: 5
- Views: 450
Re: How to get branch outflows from svzerodsolver
Have a look at the documentation: https://simvascular.github.io/svZeroDSolver/ You could call solver.get_full_result(), which returns a pandas dataframe from which you can pick the results you'd like. You can see some post-processing in use when looking at the test framework: https://github.com/SimV...
- Wed Jan 17, 2024 6:17 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: svzerodsolver Input File Error
- Replies: 2
- Views: 289
Re: svzerodsolver Input File Error
This is now fixed in SimVascular. You should be able to extract your 0D models and run them in svZeroDSolver without issues. Thank you for reporting this, Ricardo!
- Wed Jan 17, 2024 5:45 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: svzerodsolver Input File Error
- Replies: 2
- Views: 289
Re: svzerodsolver Input File Error
Hi Ricardo, The first error looks like a bug in SimVascular. I'll have a look at it. To fix it, you can replace all occurrences of internal_junction with NORMAL_JUNCTION in your input file. The BloodVesselJunction element has additional parameters for 0D elements inside the junction and is not usefu...
- Tue Dec 12, 2023 1:39 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: SimVascular arrays
- Replies: 1
- Views: 208
Re: SimVascular arrays
Hi, Please find the explanations below and let me know if you have more questions! Martin BifurcationId : 1,..,n in all n junctions of the model, -1 in branches BifurcationIdTmp : Internal parameter used during junction/branch detection BranchId : 1,..,n in all branches of the model, -1 in junctions...
- Tue Oct 31, 2023 1:57 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: Initial conditions in ROM 1D simulations
- Replies: 1
- Views: 233
Re: Initial conditions in ROM 1D simulations
I think the 1D solver will start from the pressure you set as "reference pressure" for the material.
- Thu Aug 17, 2023 12:35 pm
- Forum: SimVascular: Cardiovascular Modeling and Simulation Application
- Topic: Material exponent 1D simulation
- Replies: 1
- Views: 208
Re: Material exponent 1D simulation
Hi Wojciech,
It's a bit misleading that "exponent" refers to the material. That parameter controls the polynomial order of the flow profile. For Poiseuille flow with a parabolic flow profile you would have a material exponent of two.
Hope this helps!
Martin
It's a bit misleading that "exponent" refers to the material. That parameter controls the polynomial order of the flow profile. For Poiseuille flow with a parabolic flow profile you would have a material exponent of two.
Hope this helps!
Martin