intro story D-Flow FM

 

D-Flow Flexible Mesh

D-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:

  • Easier 1D-2D-3D model coupling, intuitive setup of boundary conditions and meteorological forcings (amongst others).
  • More flexible 2D gridding in delta regions, river junctions, harbours, intertidal flats and more.
  • High performance by smart use of multicore architectures, and grid computing clusters.
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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We have launched a new website (still under construction so expect continuous improvements) and a new forum dedicated to Delft3D Flexible Mesh.
Please follow this link to the new forum: 
/web/delft3dfm/forum
Post your questions, issues, suggestions, difficulties related to our Delft3D Flexible Mesh Suite on the new forum.

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D-Flow Flexible Mesh
DELWAQ
Cohesive sediments & muddy systems

 

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  • iOS Compile Problem

    Hi everyone, I am trying to compile any version of Delft3D in iOS 10.15.6 (19G2021) but every single time when I run the command "make" gives me this error: Generating version number in the ./deltares_common_version.F90 Done, new version number is: 67540M /bin/sh ../../../../../libtool --tag=FC --mode=compile mpif90 -DHAVE_CONFIG_H -I. -I../../../../.. -DWITH_DELFTONLINE -g -O2 -ffree-line-length-none -cpp -c -o deltares_common_version.lo deltares_common_version.F90 libtool: compile: mpif90 -DHAVE_CONFIG_H -I. -I../../../../.. -DWITH_DELFTONLINE -g -O2 -ffree-line-length-none -cpp -c deltares_common_version.F90 -fno-common -o .libs/deltares_common_version.o libtool: compile: mpif90 -DHAVE_CONFIG_H -I. -I../../../../.. -DWITH_DELFTONLINE -g -O2 -ffree-line-length-none -cpp -c deltares_common_version.F90 -o deltares_common_version.o >/dev/null 2>&1 /bin/sh ../../../../../libtool --tag=FC --mode=compile mpif90 -DWITH_DELFTONLINE -g -O2 -ffree-line-length-none -cpp -c -o multi_file_io.lo multi_file_io.f90 libtool: compile: mpif90 -DWITH_DELFTONLINE -g -O2 -ffree-line-length-none -cpp -c multi_file_io.f90 -fno-common -o .libs/multi_file_io.o multi_file_io.f90:79:43: 77 | res = CUTIL_MF_READ(fptr,strout,savepos) ! pass the starting position of read back to the caller | 2 78 | else 79 | res = CUTIL_MF_READ(fptr,strout,lastpos) ! disregard starting position of read | 1 Error: Type mismatch between actual argument at (1) and actual argument at (2) (INTEGER(4)/INTEGER(8)). make[8]: *** [multi_file_io.lo] Error 1 make[7]: *** [all-recursive] Error 1 make[6]: *** [all] Error 2 make[5]: *** [all-recursive] Error 1 make[4]: *** [all-recursive] Error 1 make[3]: *** [all-recursive] Error 1 make[2]: *** [all-recursive] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2 Can anyone give me a light how do I solve this problem? Thanks! LP
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