Issues

• Convergence issues with more complex test cases containing ChamberSphere

  SimVascular/svZeroDSolver#246 · Filter by author KatrinKoesler opened on Sep 18, 2026

• Strain-dependent active stress model

  enhancement
  SimVascular/svZeroDSolver#244 · Filter by author KatrinKoesler opened on Sep 2, 2026

• Incomplete Implementation for Windows OS in svzerodsolver.cpp: Reads input files but does not save path for output.csv

  bug
  SimVascular/svZeroDSolver#238 · Filter by author mmegally opened on Jul 9, 2026

• Solver divergence with large quadratic resistances.

  bug
  SimVascular/svZeroDSolver#237 · Filter by author natalia-rubio opened on Jul 2, 2026
  2

• Add AGENTS.md

  enhancement
  SimVascular/svZeroDSolver#232 · Filter by author ncdorn opened on Jun 5, 2026

• Optional valve-state freezing for piecewise valves to prevent Newton cycling with 3D-0D coupling

  enhancement
  SimVascular/svZeroDSolver#228 · Filter by author dseyler opened on May 21, 2026
  9

• Replace ClosedLoopHeartPulmonary with individual blocks

  enhancement
  SimVascular/svZeroDSolver#218 · Filter by author mrp089 opened on Mar 26, 2026
  3

• Extend cycle to cycle error check for closed-loop models

  enhancement
  SimVascular/svZeroDSolver#212 · Filter by author aabrown100-git opened on Feb 6, 2026

• The tests/cases JSON description of test case is useless

  enhancement
  SimVascular/svZeroDSolver#211 · Filter by author ktbolt opened on Jan 15, 2026

• The external_coupling_block error does not show the invalid type

  bug
  SimVascular/svZeroDSolver#209 · Filter by author ktbolt opened on Dec 18, 2025

• Minor feature request: streaming SAX reader for json input files

  enhancement
  SimVascular/svZeroDSolver#207 · Filter by author zasexton opened on Dec 4, 2025
  4

  

• Chamber: add feature to set material model in input file

  enhancement
  SimVascular/svZeroDSolver#200 · Filter by author KatrinKoesler opened on Nov 14, 2025
  1

• Eigen CMake issue causing build errors in svMultiPhysics integration tests

  bug
  SimVascular/svZeroDSolver#190 · Filter by author aabrown100-git opened on Sep 25, 2025
  1

• Calibrator: add calibration for Chamber Sphere block

  enhancement
  SimVascular/svZeroDSolver#188 · Filter by author federicaninno opened on Sep 17, 2025

• Add Chamber model with nonlinear filling behavior

  enhancement
  SimVascular/svZeroDSolver#187 · Filter by author zinanhu0810 opened on Aug 15, 2025

• Default build type: Release or Debug?

  enhancement
  SimVascular/svZeroDSolver#185 · Filter by author menon-karthik opened on Jul 17, 2025
  6

• Improve terminal error messages for svzerodsolver

  enhancement
  SimVascular/svZeroDSolver#183 · Filter by author jthomas475 opened on Jun 22, 2025

• Simplify input files

  enhancement
  SimVascular/svZeroDSolver#167 · Filter by author mrp089 opened on Apr 17, 2025
  2

• Calibrator: Automatically generate test cases

  enhancementgood first issue
  SimVascular/svZeroDSolver#154 · Filter by author mrp089 opened on Mar 26, 2025
  

• Add simple blocks

  enhancementgood first issue
  SimVascular/svZeroDSolver#151 · Filter by author mrp089 opened on Mar 25, 2025
  1

  

• Catch solver exceptions

  enhancementgood first issue
  SimVascular/svZeroDSolver#150 · Filter by author mrp089 opened on Mar 20, 2025
  1

• Addition of spherical left ventricle model with growth and remodeling

  enhancement
  SimVascular/svZeroDSolver#144 · Filter by author EmmaJVE opened on Feb 6, 2025
  1

• Initial conditions should have instructions & be selectable for all variables

  enhancement
  SimVascular/svZeroDSolver#141 · Filter by author alexkaiser opened on Dec 4, 2024
  4

• output auxiliary variables for chamber blocks

  enhancement
  SimVascular/svZeroDSolver#138 · Filter by author ncdorn opened on Oct 16, 2024

• Clean up the GitHub Pages documentation

  enhancement
  SimVascular/svZeroDSolver#136 · Filter by author ktbolt opened on Oct 12, 2024
  2