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Hi,

I'm trying to use a stage-discharge curves file at an outflow boundary. This is the file:

#
# STAGE-DISCHARGE CURVE BOUNDARY 1
#
Q(1) Z(1)
m3/s m
0. 35.5
-148. 38.0
-296. 40.5

file is specified as:

STEERING FILE = cas.txt
FORTRAN FILE = princi.f
GEOMETRY FILE = geo20.slf
BOUNDARY CONDITIONS FILE = cli.txt
STAGE-DISCHARGE CURVES FILE = ZQcurve.txt
RESULTS FILE = res
LIQUID BOUNDARIES FILE = qsl
FORMATTED DATA FILE 1 = sur2
PARALLEL PROCESSORS = 0

boundary conditions are:

PRESCRIBED FLOWRATES = 0.;29.6
PRESCRIBED ELEVATIONS = 35.5;49.00
STAGE-DISCHARGE CURVES = 1;0
VELOCITY PROFILES = 4;4

initial conditions are set up as in 'Wesel' test case using 'sur' and within this file I've made sure the initial elevation is 35.5m at boundary 1.

I am returned the error message:

'ERROR IN STAGE-DISCHARGE CURVES FILE'

prior to any calculations as seen in the attached screen


is there anything wrong with the current scheme?

I want to use the stage-discharge curve at the outflow boundary and a time dependent flow curve at inflow. The time dependent flow curve works fine within the simulation but when i introduce this stage-discharge curve it doesn't even get to the stage where it begins doing iterations.

Thanks in advance.

Hi
You should try with positive value of Discharge.
Telemac cannot impose the water level with negative values of discharge.

Hope this helps