open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi everyone, I am a new user of Telemac2D and currently doing my FYP regarded to the Effect of Climate Change towards the Bed Morphology River. I am using the Liquid Boundaries File with T(s), Q(m3/s) and SL(m) to show the changes of Q and SL. Unfortunately the data I have is daily data, hence the txt file I formed is for 7 days. When running in Telemac 2D, the file does not exist for Liquid Boundaries File appeared. Wish to get help from here, you help will be much appreciated. Thanks.
Attached below is the files required to run in Telemac2D.

Hi
according to your files, there is probably a numbering error in the boundaries
The boundary 1 is where you impose SL and the boundary 2 is for Q...
Regards

In my case, my boundary option is 1;0. Hence I changed the Q and SL to both boundary 1, but the outcome still remains the same.

hi
this is the order in the CLI file which is used for all the keywords dealing with boundary conditions.
The first liquid boundary in the cli file is a Water level imposed (5 4 4) so first value will be the boundary with SL imposed
the second liquid boundary is a discharge imposed (4 5 5) so second value will be Q
in the steering file you should change boundary option according to this order and in the liquid file you should have SL(1) and Q(2)
regards

Thanks for the clarifying C.Coulet, I have changed the boundary option to 1;1 SL (1) and Q (2) in liquid boundary, however it still fails.
Attached are the latest files.

Esther,

There are a couple issues in your liquid file (maxrainfall...txt):
- T_ should be T
- the numbers in the second and third columns are not in the correct format, eg 1.2. should be 1.2

After correctly these two issues, your model could run.

Hailiang

Thanks for the correction, the model can run however I have another problem with my results, why the volume exit is less than the volume enter? may I know which step that I wrote wrongly inside the cas file or any other file?
Below attached are the files and results files from telemac 2D.

Thanks for the help a lot, one step closer :)

Best regards,
Esther

Thanks for the correction, the model can run however I have another problem with my results, why the volume exit is less than the volume enter? may I know which step that I wrote wrongly inside the cas file or any other file?
Below attached are the files and results files from telemac 2D.

Thanks for the help a lot, one step closer :)

Results::
LIQUID BOUNDARY: Q(2) = 1149.8977314814815

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 87 ITERATIONS, RELATIVE PRECISION: 0.9761063E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2690421E+08 M3
FLUX BOUNDARY 1: -1151.664 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.898 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.5980E+06 S : 0.8955354E-09

================================================================================
ITERATION 119700 TIME: 6 D 22 H 15 MN 0.0000 S ( 598500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7619791666666669
LIQUID BOUNDARY: Q(2) = 1149.7763304398150
LIQUID BOUNDARY: Q(2) = 1149.7751041666668

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 87 ITERATIONS, RELATIVE PRECISION: 0.9717459E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2690669E+08 M3
FLUX BOUNDARY 1: -1151.434 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.776 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.5985E+06 S : -0.5799819E-09

================================================================================
ITERATION 119800 TIME: 6 D 22 H 23 MN 20.0000 S ( 599000.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7626157407407406
LIQUID BOUNDARY: Q(2) = 1149.6537031250000
LIQUID BOUNDARY: Q(2) = 1149.6524768518518

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 83 ITERATIONS, RELATIVE PRECISION: 0.9989009E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2690915E+08 M3
FLUX BOUNDARY 1: -1150.945 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.653 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.5990E+06 S : 0.9664864E-10

================================================================================
ITERATION 119900 TIME: 6 D 22 H 31 MN 40.0000 S ( 599500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7632523148148147
LIQUID BOUNDARY: Q(2) = 1149.5310758101850
LIQUID BOUNDARY: Q(2) = 1149.5298495370371

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 96 ITERATIONS, RELATIVE PRECISION: 0.9729204E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2691163E+08 M3
FLUX BOUNDARY 1: -1150.845 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.530 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.5995E+06 S : 0.9000094E-09

================================================================================
ITERATION 120000 TIME: 6 D 22 H 40 MN 0.0000 S ( 600000.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7638888888888888
LIQUID BOUNDARY: Q(2) = 1149.4084484953703
LIQUID BOUNDARY: Q(2) = 1149.4072222222223

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 97 ITERATIONS, RELATIVE PRECISION: 0.9957343E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2691410E+08 M3
FLUX BOUNDARY 1: -1150.882 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.408 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6000E+06 S : 0.4867082E-09

================================================================================
ITERATION 120100 TIME: 6 D 22 H 48 MN 20.0000 S ( 600500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7645254629629630
LIQUID BOUNDARY: Q(2) = 1149.2858211805556
LIQUID BOUNDARY: Q(2) = 1149.2845949074074

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 86 ITERATIONS, RELATIVE PRECISION: 0.9812708E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2691656E+08 M3
FLUX BOUNDARY 1: -1150.770 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.285 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6005E+06 S : 0.3394408E-09

================================================================================
ITERATION 120200 TIME: 6 D 22 H 56 MN 40.0000 S ( 601000.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7651620370370371
LIQUID BOUNDARY: Q(2) = 1149.1631938657408
LIQUID BOUNDARY: Q(2) = 1149.1619675925924

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 92 ITERATIONS, RELATIVE PRECISION: 0.9989844E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2691906E+08 M3
FLUX BOUNDARY 1: -1150.520 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.163 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6010E+06 S : -0.8449390E-09

================================================================================
ITERATION 120300 TIME: 6 D 23 H 5 MN 0.0000 S ( 601500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7657986111111110
LIQUID BOUNDARY: Q(2) = 1149.0405665509259
LIQUID BOUNDARY: Q(2) = 1149.0393402777777

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 92 ITERATIONS, RELATIVE PRECISION: 0.9879406E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2692154E+08 M3
FLUX BOUNDARY 1: -1150.704 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1149.040 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6015E+06 S : 0.1589252E-09

================================================================================
ITERATION 120400 TIME: 6 D 23 H 13 MN 20.0000 S ( 602000.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7664351851851852
LIQUID BOUNDARY: Q(2) = 1148.9179392361111
LIQUID BOUNDARY: Q(2) = 1148.9167129629629

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 97 ITERATIONS, RELATIVE PRECISION: 0.9733378E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2692399E+08 M3
FLUX BOUNDARY 1: -1150.185 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.917 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6020E+06 S : -0.3310346E-09

================================================================================
ITERATION 120500 TIME: 6 D 23 H 21 MN 40.0000 S ( 602500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7670717592592593
LIQUID BOUNDARY: Q(2) = 1148.7953119212964
LIQUID BOUNDARY: Q(2) = 1148.7940856481482

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 89 ITERATIONS, RELATIVE PRECISION: 0.9767609E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2692648E+08 M3
FLUX BOUNDARY 1: -1150.267 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.795 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6025E+06 S : -0.4211621E-09

================================================================================
ITERATION 120600 TIME: 6 D 23 H 30 MN 0.0000 S ( 603000.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7677083333333334
LIQUID BOUNDARY: Q(2) = 1148.6726846064814
LIQUID BOUNDARY: Q(2) = 1148.6714583333332

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 90 ITERATIONS, RELATIVE PRECISION: 0.9956292E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2692894E+08 M3
FLUX BOUNDARY 1: -1150.121 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.672 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6030E+06 S : -0.7189176E-09

================================================================================
ITERATION 120700 TIME: 6 D 23 H 38 MN 20.0000 S ( 603500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7683449074074074
LIQUID BOUNDARY: Q(2) = 1148.5500572916667
LIQUID BOUNDARY: Q(2) = 1148.5488310185185

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 89 ITERATIONS, RELATIVE PRECISION: 0.9895321E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2693144E+08 M3
FLUX BOUNDARY 1: -1150.186 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.549 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6035E+06 S : -0.8194307E-09

================================================================================
ITERATION 120800 TIME: 6 D 23 H 46 MN 40.0000 S ( 604000.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7689814814814815
LIQUID BOUNDARY: Q(2) = 1148.4274299768520
LIQUID BOUNDARY: Q(2) = 1148.4262037037038

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 90 ITERATIONS, RELATIVE PRECISION: 0.9854994E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2693390E+08 M3
FLUX BOUNDARY 1: -1149.600 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.427 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6040E+06 S : 0.2283480E-09

================================================================================
ITERATION 120900 TIME: 6 D 23 H 55 MN 0.0000 S ( 604500.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7696180555555556
LIQUID BOUNDARY: Q(2) = 1148.3048026620370
LIQUID BOUNDARY: Q(2) = 1148.3035763888888

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 92 ITERATIONS, RELATIVE PRECISION: 0.9962129E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2693635E+08 M3
FLUX BOUNDARY 1: -1149.586 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.304 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6045E+06 S : -0.1697908E-10

================================================================================
ITERATION 120960 TIME: 7 D 0 H 0 MN 0.0000 S ( 604800.0000 S)
LIQUID BOUNDARY: SL(1) = 1.7700000000000000
LIQUID BOUNDARY: Q(2) = 1148.2312262731482
LIQUID BOUNDARY: Q(2) = 1148.2300000000000

---

ADVECTION STEP

---

DIFFUSION-PROPAGATION STEP
RESCJG (BIEF) : 95 ITERATIONS, RELATIVE PRECISION: 0.9951849E-05

---

BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.2693784E+08 M3
FLUX BOUNDARY 1: -1150.035 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: 1148.231 M3/S ( >0 : ENTERING <0 : EXITING )
ADDITIONAL VOLUME DUE TO SOURCE TERMS: 31.63944 M3
RELATIVE ERROR IN VOLUME AT T = 0.6048E+06 S : 0.2196480E-09

---

FINAL BALANCE OF WATER VOLUME

RELATIVE ERROR CUMULATED ON VOLUME: -0.8334341E-06

INITIAL VOLUME : 0.3209050E+08 M3
FINAL VOLUME : 0.2693784E+08 M3
VOLUME THAT ENTERED THE DOMAIN: -8979791. M3 ( IF <0 EXIT )
VOLUME ADDED BY SOURCE TERM : 3827107. M3
TOTAL VOLUME LOST : -26.74532 M3

END OF TIME LOOP

CORRECT END OF RUN

ELAPSE TIME :
5 HOURS
53 MINUTES
55 SECONDS


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

... handling result files

+> sgphgmax.cas
moving: MAXCC_SP_results.slf
copying: sgphgmax.cas_2018-04-06-10h21min32s.sortie


My work is done

Easter, there are a few things to note:

- you are performing a modelling with transient Q and SL. Your initial elevation (3 m) in the domain is a constant value which is probably not realistic for the first time stamp. What you could do is to run the model with the first Q and first SL (in your liquid boundary) as constant until steady state and use the steady state result as initial condition instead of constant elevation, so you get a more realistic node depth and velocity in the domain for the first time stamp.

- as Coulet has pointed out, your first boundary is SL, and second boundary is Q, as dictated by the order of appearing in boundary condition file (.cli). All other files need to respect this order. So the order is correct in the liquid file. However, you still did not update this order in the cas file. PRESCRIBED FLOWRATES = 1012;0 should be PRESCRIBED FLOWRATES = 0;1012, and PRESCRIBED ELEVATIONS = 0;3 should be PRESCRIBED ELEVATIONS = 3;0.

- you also have rainfall added to the model domain. I suggest to remove it for now until you get the model correct with Q and SL only. Also when you check the mass balance be sure to include the rainfall.

- what software did you use to generate the mesh. It seems the nodes are not numbering properly. It will not impact the model results I believe but may slower model run due to larger matrix band width and needed memory storage. Renumbering the nodes can significantly reduce band width.

Hailiang

Thanks Hailiang for the help here, but I am actually quite confusing with the boundary conditions. The codes I used for the boundary 1 is 455 (blue) while boundary 2 is 544 (green). I wish to get my first boundary in 455 and the exit boundary as 544. How do I manage to do that? or which step i did wrongly? I am using Blue Kenue as my pre-processor. Attached file is the boundary conditions in BK.

"- you are performing a modelling with transient Q and SL. Your initial elevation (3 m) in the domain is a constant value which is probably not realistic for the first time stamp. What you could do is to run the model with the first Q and first SL (in your liquid boundary) as constant until steady state and use the steady state result as initial condition instead of constant elevation, so you get a more realistic node depth and velocity in the domain for the first time stamp."

How would I do that? Do you have any examples that are close to this situation so that I can make it as reference. Your help is so so much appreciated. Thanks!