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: 
/web/delft3dfm/forum

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

=======================================================

** PLEASE TAG YOUR POST! **

 

 

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

 


Message Boards

error wave on delft3d 3.27

DG
Dam Giang, modified 2 Years ago.

error wave on delft3d 3.27

Youngling Posts: 3 Join Date: 7/13/17 Recent Posts
Dear all,
i am using dleft3D 3.27
I only worked with DELFT 3D WAVE (standalone). i have problem
1

Execution started at 20170823.160359



---------------------------------------
SWAN
SIMULATION OF WAVES IN NEAR SHORE AREAS
VERSION NUMBER 40.51A
---------------------------------------



$***************************** HEADING *********************************

$

PROJECT 'wave ' '1 '

'wave '

' '

' '

$

$***************************** MODEL INPUT *****************************

$

SET LEVEL = 0.00 NOR = 90.00 DEPMIN = 0.05 _
MAXMES = 1000 MAXERR = 2 _
GRAV = 9.81 RHO = 1025.00 INRHOG = 1 _
NAUT

$

MODE NONST

CGRID CURV 400 190 EXCEPT 0.0 0.0 _
CIR 36 0.05 1.00 24
Resolution in sigma-space: df/f = 0.1329

$

READ COOR 1. 'TMP_grid2swan01' _
4 0 1 FREE
** Heading lines **
-> x-coordinates
** Heading lines **
-> y-coordinates

$

INPGRID _
BOTTOM CURV 0. 0. 400 190

READINP BOTTOM 1.0 'BOTNOW' 4 0 FREE

$

$

$

$

$

BOUN SHAPE JONSWAP 3.30 PEAK DSPR POWER

BOUN SIDE N CCW _
** Warning : keyword SIDE can be used for regular grid only
CON PAR 1.50 5.00 90.00 4.00

BOUN SHAPE JONSWAP 3.30 PEAK DSPR POWER

BOUN SIDE E CCW _
** Warning : keyword SIDE can be used for regular grid only
CON PAR 1.50 5.00 90.00 4.00

BOUN SHAPE JONSWAP 3.30 PEAK DSPR POWER

BOUN SIDE S CCW _
** Warning : keyword SIDE can be used for regular grid only
CON PAR 1.50 5.00 90.00 4.00

$

GEN3

BREAK CON 1.00 0.73

FRIC JON 0.0670

OFF QUAD

LIM 10 1

NUM DIR cdd= 0.50 SIGIM css= 0.50

$

NUM ACCUR 0.020 0.020 0.020 85.000 15

$

$***************************** OUTPUT REQUEST **************************

$

TABLE 'COMPGRID' NOHEAD 'SWANOUT1' _
HSIGN DIR TM01 DEPTH VELOC TRANSP _
DSPR DISSIP LEAK QB XP YP _
DIST UBOT STEEPW WLENGTH FORCES RTP _
PDIR WIND

$

TABLE 'COMPGRID' NOHEAD 'SWANOUT2' _
TPS TM02 TMM10 DHSIGN DRTM01 SETUP _
$

$

$

$

TEST ITEST= 0 ITRACE= 0

COMPUTE STAT 20161118.**0000
** Error : Wrong repetition factor
** Warning : Limiter is de-activated in case of no quadruplets
iteration 1; sweep 1
iteration 1; sweep 2
iteration 1; sweep 3
iteration 1; sweep 4
accuracy OK in 2.24 % of wet grid points ( 85.00 % required)

iteration 2; sweep 1
iteration 2; sweep 2
iteration 2; sweep 3
iteration 2; sweep 4
accuracy OK in 85.93 % of wet grid points ( 85.00 % required)

** WARNING : Differences in wave height at the boundary
Relative difference between input and computation >= 0.10
Hs[m] Hs[m] Hs[-]
ix iy index (input) (computed) (relative)
--------------------------------------------------
1 128 22 1.51 1.35 0.10
1 127 21 1.51 1.34 0.11
1 126 20 1.51 1.33 0.12
1 125 19 1.51 1.32 0.13
1 124 18 1.51 1.31 0.13
1 123 17 1.51 1.30 0.14
1 122 16 1.51 1.28 0.15
1 121 15 1.51 1.28 0.15
1 120 14 1.51 1.28 0.15
1 119 13 1.51 1.26 0.16
1 118 12 1.51 1.21 0.20
1 117 11 1.51 1.10 0.27
1 116 10 1.51 0.98 0.35
1 115 9 1.51 0.86 0.43
1 114 8 1.51 0.69 0.54
1 113 7 1.51 0.36 0.76
1 112 6 1.51 0.10 0.93
1 111 5 1.51 0.00 1.00
1 110 4 1.51 0.00 1.00
1 109 3 1.51 0.00 1.00
1 108 2 1.51 0.00 1.00
401 104 40011 1.51 0.63 0.58
401 103 40010 1.51 0.00 1.00
401 102 40009 1.51 0.00 1.00
401 101 40008 1.51 0.00 1.00
401 100 40007 1.51 0.00 1.00
401 99 40006 1.51 0.00 1.00
401 98 40005 1.51 0.00 1.00

** Error : Data field skipped:*0000

STOP

Someone could help me?
Thanks you,
Adri Mourits, modified 2 Years ago.

RE: error wave on delft3d 3.27

Yoda Posts: 1224 Join Date: 1/3/11 Recent Posts
Hi Dam Giang,

The line:
COMPUTE STAT 20161118.**0000
seems to cause the problems. Is there something wrong with the (hours in the) time definition of this model? What happens if you use non-stationary in stead of quasi-stationary?

If this doesn't help: can you zip the full set of input files and attach it to a post on this forum?

Thanks.

Regards,

Adri
DG
Dam Giang, modified 2 Years ago.

RE: error wave on delft3d 3.27

Youngling Posts: 3 Join Date: 7/13/17 Recent Posts
Thanks Mourits,