Compute flux - CNR-Engineering/PyTelTools GitHub Wiki

• load 2D Serafin file
• load file (shp or i2s file format) with a set of polylines
• select flux computation (and specify optional time sampling)
• export temporal fluxes

Conventions:

• polylines are numbered from the input file order starting at 1
• flux thourgh a cross-section is positive if it is designed from left to right bank (ie. cross-section normal vector is oriented at 90° of the original cross-section in the anticlockwise direction)

Depending on variables which are in input Serafin files, following flux computations are available:

(X, Y) Vector field	Heigth	Scalar	Result	Unit
-	H	-	Cross sectional area	m²
(U, V)	H	-	Liquid flux	m³/s
(I, J)	-	-
-	H	M
-	-	Q
(QSX, QSY)	-	-	Total solid flux	m³/s
-	-	QS
-	-	QS CLASS *
(QSBLX, QSBLY)	-	-	Bed load solid flux	m³/s
-	-	QSBL
-	-	QS BEDLOAD CL*
(QSSUSPX, QSSUPY)	-	-	Suspension solid flux	m³/s
-	-	QSSUSP
-	-	QS SUSP. CL*
(U, V)	H	T	Solid flux	kg/s

* is the index of the sediment in case of multi-class approch.

ℹ️ Solid fluxes are also expressed in m3/s and correspond to the volume of solids (i.e. without void).

⚠️ Some solid flux computations might correspond to the maximum sediment transport capacity. Therefore beware of the meaning of the variables which are used for the flux computation.