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intro story DELWAQ


DELWAQ is the engine of the D-Water Quality and D-Ecology programmes of the Delft3D suite. It is based on a rich library from which relevant substances and processes can be selected to quickly put water and sediment quality models together.

The processes library covers many aspects of water quality and ecology, from basic tracers, dissolved oxygen, nutrients, organic matter, inorganic suspended matter, heavy metals, bacteria and organic micro-pollutants, to complex algae and macrophyte dynamics. High performance solvers enable the simulation of long periods, often required to capture the full cycles of the processes being modelled.

The finite volume approach underlying DELWAQ allows it to be coupled to both the structured grid hydrodynamics of the current Delft3D-FLOW engine and the upcoming D-Flow Flexible Mesh engine (1D-2D-3D) of the Delft3D Flexible Mesh Suite (or even other models such as TELEMAC).

'DELWAQ in open source' is our invitation to all leading experts to collaborate in further development and research in the field of water quality, ecology and morphology using Delft3D. Feel free to post your DELWAQ related questions or comments in this dedicated forum space. If you are new to DELWAQ, the tutorial (in the user manual) is a good place to start. A list of DELWAQ related publications is available here.




Sub groups
D-Flow Flexible Mesh

Cohesive sediments & muddy systems


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error in flow_wave

Tulasiram Velpuri, modified 6 Months ago.

error in flow_wave

Youngling Posts: 7 Join Date: 1/30/19 Recent Posts


I get this error after 75% nearly for 2 days, can anybody help me out with this error 

ERROR: file 'norm_end' expected to signal a correct SWAN calculation
 ERROR: *** ERROR: file 'norm_end' expected to signal a correct SWAN calculation
 Wave exited abnormally

NEFIS message 8030:
 Cannot open file 'wavm-tst.def' for access type 'u'
 --- Permission denied

forrtl: severe (172): Program Exception - exception code = 0x7363 (29539)
Image              PC                Routine            Line        Source             
KERNELBASE.dll     00007FFDD1039149  Unknown               Unknown  Unknown
VCRUNTIME140.dll   00007FFDC4B4486D  Unknown               Unknown  Unknown
wave.exe           00007FF783E11701  Unknown               Unknown  Unknown
wave.exe           00007FF783BEED4A  Unknown               Unknown  Unknown
wave.exe           00007FF783C9CCBA  Unknown               Unknown  Unknown
wave.exe           00007FF783BA6D8A  Unknown               Unknown  Unknown
wave.exe           00007FF783B4187F  Unknown               Unknown  Unknown
wave.exe           00007FF783DF58EE  Unknown               Unknown  Unknown
wave.exe           00007FF783E1E2A9  Unknown               Unknown  Unknown
KERNEL32.DLL       00007FFDD3EA81F4  Unknown               Unknown  Unknown
ntdll.dll          00007FFDD4A9A251  Unknown               Unknown  Unknown



i have gone through Print file which says:

   "Terminating error: Input file missing"