Issues

• [Bug] Pinball ignores observation_type and render() raises AttributeError

  dynamicslab/hydrogym#361 · Filter by author NopeCharon opened on Oct 28, 2026

• [Bug] Cylinder jet actuation is not zero-net-mass-flux

  dynamicslab/hydrogym#360 · Filter by author NopeCharon opened on Oct 28, 2026

• [Bug] SemiImplicitBDF start-up steps use the wrong scheme order

  dynamicslab/hydrogym#354 · Filter by author NopeCharon opened on Oct 27, 2026

• [Bug] FlowEnv restarts the solver iteration count on every multi-substep env.step()

  dynamicslab/hydrogym#352 · Filter by author NopeCharon opened on Oct 27, 2026

• [Bug]the observation of 2d naca(re=1000)

  bug
  dynamicslab/hydrogym#326 · Filter by author liangaomng opened on Oct 23, 2026
  1

• Contribution candidates?

  dynamicslab/hydrogym#258 · Filter by author weklund opened on Aug 21, 2026

• Funding Display

  dynamicslab/hydrogym#245 · Filter by author ludgerpaehler opened on Apr 8, 2026

• Weights and Biases Integration

  enhancementpriority
  dynamicslab/hydrogym#115 · Filter by author ludgerpaehler opened on Dec 9, 2023
  

• Reinforcement Learning Framework Integration Documentation

  enhancementgood first issue
  dynamicslab/hydrogym#113 · Filter by author ludgerpaehler opened on Nov 30, 2023 · Baseline Cut
  

• Add Koopman RL demonstration

  enhancement
  dynamicslab/hydrogym#110 · Filter by author ludgerpaehler opened on Nov 26, 2023 · Baseline Cut
  

• Example of visualizing rollout of trained agent

  dynamicslab/hydrogym#82 · Filter by author jcallaham opened on Apr 6, 2023 · v1.0 Paper Release
  

• (Unit-) Tests

  good first issue
  dynamicslab/hydrogym#78 · Filter by author ludgerpaehler opened on Mar 30, 2023 · Baseline Cut

• First release planning

  discussion
  dynamicslab/hydrogym#36 · Filter by author jcallaham opened on May 27, 2022 · v1.0 Paper Release
  10

• Linear algebra module

  dynamicslab/hydrogym#33 · Filter by author jcallaham opened on May 19, 2022

• Implement thermosyphon

  dynamicslab/hydrogym#32 · Filter by author jcallaham opened on May 19, 2022

• Balanced POD

  enhancement
  dynamicslab/hydrogym#28 · Filter by author jcallaham opened on May 12, 2022

• PySINDy integration

  enhancementPaper-Release
  dynamicslab/hydrogym#26 · Filter by author jcallaham opened on May 12, 2022 · v1.0 Paper Release
  1

  

• [Baseline] Linear optimal control for cylinder

  dynamicslab/hydrogym#17 · Filter by author jcallaham opened on May 12, 2022
  8