TELEMAC-MASCARET Forum: I get confused with the "flow rate" or "discharge" boundary condition (1/1)

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TOPIC: I get confused with the "flow rate" or "discharge" boundary condition

I get confused with the "flow rate" or "discharge" boundary condition 4 years 2 months ago #36684

lijian_cug

Dear Sir:
I get confused with the keyword "flow rate" and "discharge".In English, flow rate mean unit discharge or discharge per width. In telemac2D model, the prescribed flowrate means what? Is it unit discharge or discharge? In the code of telemac2d model (nomvar_sisyphe.f), the flowrate has unit of " M3/S/M". so could you please explain for me? Thanks!
TEXTE(01) = 'VELOCITY U M/S '
TEXTE(02) = 'VELOCITY V M/S '
TEXTE(03) = 'WATER DEPTH M '
TEXTE(04) = 'FREE SURFACE M '
TEXTE(05) = 'BOTTOM M '
TEXTE(06) = 'FLOWRATE Q M3/S/M '
TEXTE(07) = 'FLOWRATE QX M3/S/M '
TEXTE(08) = 'FLOWRATE QY M3/S/M '
TEXTE(09) = 'RIGID BED M '
TEXTE(10) = 'FRICTION COEFT '
TEXTE(11) = 'BED SHEAR STRESSN/M2 '
TEXTE(12) = 'WAVE HEIGHT HM0 M '
TEXTE(13) = 'PEAK PERIOD TPR5S '
TEXTE(14) = 'MEAN DIRECTION DEG '
TEXTE(15) = 'SOLID DISCH M2/S '
TEXTE(16) = 'SOLID DISCH X M2/S '
TEXTE(17) = 'SOLID DISCH Y M2/S '
TEXTE(18) = 'EVOLUTION M '
TEXTE(19) = 'RUGOSITE TOTALE M '
TEXTE(20) = 'FROT. PEAU MU '
TEXTE(21) = 'MEAN DIAMETER M '

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I get confused with the "flow rate" or "discharge" boundary condition 4 years 2 months ago #36685

pham OFFLINE Administrator Posts: 1559 Thank you received: 602	Hello, What is computed in "FLOWRATE" is the magnitude of velocity coming from TELEMAC-2D (depth averaged velocity) times water depth. You can have a look at the PREDES subroutine in sources/sisyphe directory or PRERES_TELEMAC2D subroutine in sources/telemac2d directory. Hope this helps, Chi-Tuan
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