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! 


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: 

Post your questions, issues, suggestions, difficulties related to our Delft3D Flexible Mesh Suite on the new forum.





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


Message Boards

segmentation fault of flow_gui : error of SetSens.c

mount zhang, modified 7 Years ago.

segmentation fault of flow_gui : error of SetSens.c

Youngling Posts: 6 Join Date: 3/19/13 Recent Posts
I have installed the Delft3D_GUI, when I start the delft3d-menu, then click the flow to start the flow_gui, it is ok
but when I prepare to open a new file by clicking the file and open, the error is the following:
segmentation fault (dump core)

I use gdb to check the flow_gui, the result is the following:

[root@mount bin]# gdb flow_gui
GNU gdb (GDemoticon Fedora (
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-redhat-linux-gnu".
For bug reporting instructions, please see:
Reading symbols from /opt/delft3d/intel/flow/bin/flow_gui...done.
(gdb) r

Starting program: /opt/delft3d/intel/flow/bin/flow_gui
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/".

Program received signal SIGSEGV, Segmentation fault.
SetAncestorSensitive (widget=0x0,
ancestor_sensitive=ancestor_sensitive@entry=0 '\000') at SetSens.c:89
89 if (widget->core.ancestor_sensitive == ancestor_sensitive) return;
Missing separate debuginfos, use: debuginfo-install Delft3D-openhydromorpho_waq-4.00.01-02.i386
(gdb) list

84 {
85 Arg args[1];
86 register Cardinal i;
87 register WidgetList children;
89 if (widget->core.ancestor_sensitive == ancestor_sensitive) return;
91 XtSetArg(args[0], XtNancestorSensitive, ancestor_sensitive);
92 XtSetValues(widget, args, XtNumber(args));

Is the any problem about the source code of Delft3D-openhydromorpho_waq-4.00.01-02.i386.rpm?
waiting for the answer........................