open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi.
Im new in the program and I could finally model the geometry and the Boundary condition and I could get the saved file out of the pre-processor.The problem is I don't know how to generate the cas.txt specifically for my project to run the simulation and simulation to transfer the result to post-processor.How can I generate the cas.txt specifically for my project to place it in the same address of the geometry and BC file to run the simulation.

The CAS file is a text file so you can edit it with a text editor. However, since you are a beginner, I would recommend you use FUDAA for this, as it will help you explore the keyword while showing your GEO and CONLIM files.

Hope this helps.

Sébastien.

I cant find the source of FUDAA on download section!

Do I have to copy the cas.txt from one of the test file to the same root and change it,then copy it to the same root of the BC and Geometry file????is it correct?
tnx

Hello,

Yes, you can copy a parameter file in the directories of test-cases and adapt it to your own case, by changing the names of files and other parameters.

With best regards,

Jean-Michel Hervouet

will the result appropriate for the post-processor be saved in the same root????

Hello,

Yes, if you do not specify any path in the results file name it will be saved in the directory where you launched your case (if I understand well the question).

With best regards,

Jean-Michel Hervouet

Hi again,
Actually my task is modeling a free falling of water from a savoir released from a specified elevation,the problem is that it seems that there is no document available to explain the parameters to be used in the cas.txt to model such file.As an example I just put a test steering file in here.I wonder if you could guid me how to change this file to make it compatible with my project.
tnx




/
/ DONAU : TESTING NEW POSSIBILITIES ON FRICTION
/ DEVELOPPED AT BAW
/
/
/ HP C3700 compilateur HP : 2375 s version 5.5 23/11/2004
/ HP C3700 compilateur HP : 1424 s version 5.7 19/04/2007
/ Dell 2.8 MHz compilateur pgi : 896 s version 5.7 19/04/2007
/
/ HP C3700 compilateur HP : 1454 s version 5.8 19/12/2007
/ HP C3700 compilateur Nag : 3080 s version 5.8 26/12/2007
/ Dell 2.8 MHz compilateur pgi : 857 s version 5.8 19/12/2007
/
/ HP C3700 compilateur HP : 1425 s version 5.9 16/10/2008
/ Dell 2.8 MHz compilateur pgi : 857 s version 5.9 16/10/2008
/
/ HP C3700 compilateur HP : 1438 s version 6.0 24/11/2009
/ HP C3700 compilateur Nag : 3003 s version 6.0 27/11/2009
/ Dell 2.8 MHz compilateur Intel : 688 s version 6.0 26/11/2009
/
/

---

/ FILE DEFINITION
/

---

/
BOUNDARY CONDITIONS FILE : cli.txt
GEOMETRY FILE : geo
FORTRAN FILE : princi.f
RESULTS FILE : res
PARALLEL PROCESSORS : 0
VALIDATION : YES
REFERENCE FILE : ref
/
/

---

/ GENERAL OPTIONS
/

---

/
TITLE : 'donau_00'
/
VARIABLES FOR GRAPHIC PRINTOUTS : 'U,V,S,B,H,Q,M,W'
VARIABLES TO BE PRINTED : ''
/
TIME STEP : 0.5
NUMBER OF TIME STEPS : 900
GRAPHIC PRINTOUT PERIOD : 900
LISTING PRINTOUT PERIOD : 100
/
COMPUTATION CONTINUED : NO
/
/

---

/ BOUNDARY CONDITIONS
/

---

/
PRESCRIBED ELEVATIONS : 309.205 ; 309.205
PRESCRIBED FLOWRATES : 218.0 ; 218.0
/
/

---

/ INITIAL CONDITIONS
/

---

/
INITIAL CONDITIONS :'CONSTANT ELEVATION'
INITIAL ELEVATION : 309.4D0
/
/

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/ PHYSICAL CONSTANTS
/

---

/
LATITUDE OF ORIGIN POINT : 48.
WATER DENSITY : 1000.
/
/

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/ NUMERICAL OPTIONS
/

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/
TIDAL FLATS : YES
OPTION FOR THE TREATMENT OF TIDAL FLATS : 1
MASS-BALANCE : YES
SOLVER : 7
SOLVER OPTION : 5
SOLVER ACCURACY : 1.D-6
MAXIMUM NUMBER OF ITERATIONS FOR SOLVER : 70
PRECONDITIONING : 2
TYPE OF ADVECTION : 7;5
SUPG OPTION : 2;2;2;2
DISCRETIZATIONS IN SPACE : 11; 11
MATRIX STORAGE : 3
IMPLICITATION FOR DEPTH : 1.
IMPLICITATION FOR VELOCITY : 0.55
/
/

---

/ TURBULENCE MODEL
/

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/
TURBULENCE MODEL : 2
VELOCITY DIFFUSIVITY : 10.
/
/

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/
/ FRICTION PARAMETERS /
/

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/
/LAW OF BOTTOM FRICTION = 5
/FRICTION COEFFICIENT = 0.025
/
FRICTION DATA = YES
FRICTION DATA FILE = roughness.tbl
FORMATTED DATA FILE 1 = gitter_09_tbl.bfr
MAXIMUM NUMBER OF FRICTION DOMAINS = 10
NON-SUBMERGED VEGETATION FRICTION = NO
&ETA
&FIN

Hello,

Your case seems closer to a dam-break case, so you should preferably start from the Malpasset test case. It is in the test.fr directory but there is a file in English : cas_gb.txt to start with. The rest depends on your geometry. In this case all boundaries are solid, and the reservoir is represented by the water depth in the initial conditions, without the dam, so the water then just falls down into the valley. Look in Fortran file how initial conditions are done, and you can probably inspire from this case to build your application.

With best regards,

Jean-Michel Hervouet

Hi again,
by copying those file you suggested the processor started to run but with errors that it could not get the result out of it.
I think the problem lied on the place to enter the prescribed height which I dont know how!in the fallowing is the steering file of the dam-break ,please tell me where to change to set the prescribed height;besides,the errors saved on the directory of the project say that compiling of princi.f is impossible by this:
*** ERROR : COMPILATION princi.f ***

Please help me with these two issue,I know that I seem a real beginner ,but I really need these infos.
Here is the steering file mentioned above.




/

---

/ COMPUTER INFORMATIONS
/

---

/
GEOMETRY FILE = geo
FORTRAN FILE = princi.f
BOUNDARY CONDITIONS FILE = cli.txt
RESULTS FILE = res
REFERENCE FILE = ref
PARALLEL PROCESSORS = 0
/
/

---

/ GENERAL INFORMATIONS - OUTPUTS
/

---

/
TITLE = 'DAM BREAK OVER DRY BED'
VARIABLES FOR GRAPHIC PRINTOUTS = 'U,V,H,F,L,N'
GRAPHIC PRINTOUT PERIOD = 10
LISTING PRINTOUT PERIOD = 15
TIME STEP = 0.01
NUMBER OF TIME STEPS = 150
VARIABLE TIME-STEP : YES
DURATION : 1.5
MASS-BALANCE = YES
INFORMATION ABOUT SOLVER = YES
VALIDATION = YES
/

---

/ INITIAL CONDITIONS
/

---

/
COMPUTATION CONTINUED = NO
INITIAL CONDITIONS = 'PARTICULAR'
/
/

---

/ PHYSICAL PARAMETERS
/

---

/
LAW OF BOTTOM FRICTION = 0.
TURBULENCE MODEL = 1
VELOCITY DIFFUSIVITY = 0.
/
/

---

/ NUMERICAL PARAMETERS
/

---

/
EQUATIONS = 'SAINT-VENANT FV'
FINITE VOLUME SCHEME = 2
NUMBER OF PRIVATE ARRAYS = 1
TIDAL FLATS = YES
TYPE OF ADVECTION = 7;5
SUPG OPTION = 2;2
DISCRETIZATIONS IN SPACE = 11;11
SOLVER ACCURACY = 1.E-4
SOLVER = 7
SOLVER OPTION = 3
PRECONDITIONING = 2
IMPLICITATION FOR DEPTH = 1.
IMPLICITATION FOR VELOCITY = 0.6
INITIAL GUESS FOR H = 1
/
&FIN