Comments (2)
Forgive me for being a novice in DRL and CFD, I have tried to adjust parameters, change reinforcement learning algorithm, change CFD training strategy and other methods, including extracting the complete action curve from your results to control drag reduction, but the desired effect has not been achieved.
BTW, I set the number of grids to 16200, the discrete format to CrankNicholson, the other settings are no different from your paper, and the algorithm used is also Tensorforce's PPO.
The following picture is the control effect made with the action curve in your paper:
The control curve from your paper looks like this:
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I have no idea why this happens in your code. I am quite confident that the work on this repo is working as it should - as it has been reproduced by other authors, for example https://github.com/npuljc/RL_control_Nek5000 got the same result when they implemented my DRL strategies in Nek5000.
I think that the most likely sources of erros are either in i) how your OpenFOAM case is set up, how the probes / jets are set up, etc, or ii) how you are coupling the DRL and the CFD.
In either case, this is not an issue with the present repo, this will be strongly dependent on your code and will require detailed analysis / debugging of your code to fix things. This is outside the scope of this repo to help other people set up their own DRL experiments, and I have no time for helping anyways - so closing.
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Related Issues (20)
- How to customize the .xdmf file for initial conditions? HOT 7
- How the reward function working HOT 3
- No file in mesh directory HOT 5
- How to define Neumann boundary condition HOT 1
- symmetric case HOT 4
- Problem with creating a new mesh HOT 3
- about changing the geometry HOT 5
- could not connect to display ":0.0" HOT 9
- Can not get the "fenics-and-more.img" file HOT 5
- Could not open image; image format not recognized HOT 15
- Change the model and run singlerunner from Ann_ controlled_ flow_ Singlerun folder, did not get the same result HOT 3
- New airfoil model encountered mesh convertion probelm HOT 2
- About Q<0.06 HOT 1
- Negative drag values while training HOT 4
- issues about running single_runner.py HOT 10
- higher Reynolds problem HOT 1
- Download the Singularity container HOT 2
- problems about singularity container parts HOT 3
- related to value of mean Drag HOT 3
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