simulation restart - D-Flow Flexible Mesh - Delft3D
intro story D-Flow FM
D-Flow Flexible MeshD-Flow Flexible Mesh (D-Flow FM) is the new software engine for hydrodynamical simulations on unstructured grids in 1D-2D-3D. Together with the familiar curvilinear meshes from Delft3D 4, the unstructured grid can consist of triangles, pentagons (etc.) and 1D channel networks, all in one single mesh. It combines proven technology from the hydrodynamic engines of Delft3D 4 and SOBEK 2 and adds flexible administration, resulting in:
An overview of the current developments can be found here. The D-Flow FM - team would be delighted if you would participate in discussions on the generation of meshes, the specification of boundary conditions, the running of computations, and all kinds of other relevant topics. Feel free to share your smart questions and/or brilliant solutions!
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simulation restart
JM
Jacob Morgan, modified 4 Years ago.
simulation restart
Youngling Posts: 5 Join Date: 7/31/15 Recent Posts 00
I am attempting to restart a river simulation that I have previously run. I have both the restart file (tri-rst.A00_MASTER.date.time) as well as the map-file (trim-A00_MASTER.dat and trim-A00_MASTER.def). When I attempt to use the restart file the simulation will begin from the correct time but the initial conditions of the bed elevations are apparently pulled from the depth file rather than the restart file. When I attempt to use the map-file the simulation fails before it begins and the tri-diag file reports: "*** ERROR Restart time not found on restart file trim-A00_MASTER.dat". Viewing the map-file in QUICKPLOT indicates that the restart time does occur in the map-file. The previous simulation and the one I am trying to begin are exactly the same except for the sediment supply rate. Is this somehow causing a problem? Do I need to change any of the input files other than adding "Restid = #trim-A00_MASTER#" to the .mdf file?
I would appreciate any help.
-Jacob
I would appreciate any help.
-Jacob
Adri Mourits, modified 4 Years ago.
RE: simulation restart (Answer)
Yoda Posts: 1221 Join Date: 1/3/11 Recent Posts 00
Hi Jacob,
The restart file does not contain bed levels, so that behaviour is as expected.
About using the map-file to restart from:
I managed to reproduce your error message by just adding the line "Restid = #trim-A00_MASTER#" to the mdf-file and nothing else. What you should do:
1. Be sure that the restart file and the current simulation have different runids, so if the mdf file is named "A00_MASTER.mdf" then rename the two trim files to something like "trim-A00_MASTER_previous.dat" and ".def" and use that as Restid specification.
2. Use for the current (new) simulation as starttime the endtime of the previous simulation.
Regards,
Adri
The restart file does not contain bed levels, so that behaviour is as expected.
About using the map-file to restart from:
I managed to reproduce your error message by just adding the line "Restid = #trim-A00_MASTER#" to the mdf-file and nothing else. What you should do:
1. Be sure that the restart file and the current simulation have different runids, so if the mdf file is named "A00_MASTER.mdf" then rename the two trim files to something like "trim-A00_MASTER_previous.dat" and ".def" and use that as Restid specification.
2. Use for the current (new) simulation as starttime the endtime of the previous simulation.
Regards,
Adri
JM
Jacob Morgan, modified 4 Years ago.
RE: simulation restart
Youngling Posts: 5 Join Date: 7/31/15 Recent Posts 00
Good info, Adri!
I think my problem was a mix of the filename and the start time.
Thanks for your help!
I think my problem was a mix of the filename and the start time.
Thanks for your help!