intro story Coast / Estuary

Coast / Estuary

Coastal systems are among the most dynamic physical systems on earth and are subject to a large variety of forces. The morphodynamic changes occurring to coastlines worldwide are of great interest and importance. These changes occur as a result of the erosion of sediments, its subsequent transport as bed load or suspended load, and eventual deposition. 
Estuaries are partly enclosed water bodies that have an open connection to the coast. Estuaries generally have one or more branching channels, intertidal mudflats and/or salt marshes. Intertidal areas are of high ecological importance and trap sediments (sands, silts, clays and organic matter).
Within the Delft3D modelling package a large variation of coastal and estuarine physical and chemical processes can be simulated. These include waves, tidal propagation, wind- or wave-induced water level setup, flow induced by salinity or temperature gradients, sand and mud transport, water quality and changing bathymetry (morphology). Delft3D can also be used operationally e.g. storm, surge and algal bloom forecasting. 
On this discussion page you can post questions, research discussions or just share your experience about modelling coastal and/or estuarine systems with Delft3D FM. 




Sub groups
D-Flow Flexible Mesh
Cohesive sediments & muddy systems



Message Boards

WAQ maximum number of time series limit : 43 is OK

Sung Tae LEE, modified 16 Days ago.

WAQ maximum number of time series limit : 43 is OK

Youngling Posts: 8 Join Date: 3/23/17 Recent Posts

Regarding WAQ, I have 11 discharge points and there comes error when I configure more than total 43 time series. (until 43 time series, it is OK)
(Until WAQ, every phase was successful configuring 426 days and 11 points (that means 4,700 time series (426 x 11))!
It was very excellent, even though very long time consuming, FLOW 5 hours, Coupling 1.5hours)

The WAQ error pattern (43 time series) was found by a lot of test running.
Under 43 time series (2 or 3 time series per one discharge point), WAQ was also successful!

Does any body have experience of some memory allocation limit problem like this?
What will be solution?

For your reference, the error msg (in the case of more than 43 time series simulation) is as below :

forrtl: severe (157): Program Exception - access violation
Image              PC                Routine            Line        Source             
delwaq.dll         00007FFC7DAAF8F5  SETVAT                    368  setvat.f
delwaq.dll         00007FFC7DA296D9  WR_PROCESWRK              185  wr_proceswrk.f
delwaq.dll         00007FFC7D9FF9DA  DLWQP1                    824  dlwqp1.f
delwaq.dll         00007FFC7D6DAA55  Unknown               Unknown  Unknown
delwaq1.exe        00007FF7DF0512A8  MAIN__                     45  dlwq1.f
delwaq1.exe        00007FF7DF0A74D2  Unknown               Unknown  Unknown
delwaq1.exe        00007FF7DF0A7868  Unknown               Unknown  Unknown
KERNEL32.DLL       00007FFCD63D7974  Unknown               Unknown  Unknown
ntdll.dll          00007FFCD8F3A271  Unknown               Unknown  Unknown
Sung Tae LEE, modified 16 Days ago.

RE: WAQ maximum number of time series limit : 43 is OK

Youngling Posts: 8 Join Date: 3/23/17 Recent Posts
I think this error may be occurred from other reasons like unstable computer h/w or OS or installation itself because now it works well.

But please refer to this phenomenon for future simulation.