Sets properties for a tank
ENsettankdata(
nodeindex,
elevation,
init_level,
min_level,
max_level,
diameter,
min_volume,
volume_curve = ""
)
tank's node index (starting from 1)
the tank's bottom elevation.
the initial water level in the tank.
the minimum water level for the tank.
the maximum water level for the tank.
the tank's diameter (0 if a volume curve is supplied).
the volume of the tank at its minimum water level.
the name of the tank's volume curve ("" for no curve)