Free flow flow-rate for OVOIDAL cross section pipes

The app returns the flov velocity and flow rate in a OVOIDAL cross-section pipeline in free-flow conditions

Inclination
% Filling rate
Design flow-rate

Pipe data
Pipe dimensions		(cm x cm)
Pipe nominal radius		(m)
Roughness coefficient
Gauckler-Strickler (G-S)	Ks	(m^1/3s^-1)
Design filling rate	h/R	( )
% Filling rate		%
Flow data
Inclination	i	( )
A/r² ratio	A/r²	( )
R/r ratio	R/r	( )
Wet area	A	(m²)
Hydraulic radius	R=A/P	(m)
Avg flow speed	v	(m/sec)
Design flow-rate	Q	(m³/sec)