Description Usage Arguments Details Value Examples
Compute geometry relations for trapezoidal channels.
1 | channel_geom(y, B, SS)
|
y |
Flow depth [L]. |
B |
Channel bottom width [L]. |
SS |
Channel sideslope [L L^{-1}]. For a rectangular channel, |
Channel geometry relations are routinely calculated in numerical solutions of steady, gradually-varied and unsteady flows. This function is used extensively by internal procedures and is made accessible to the user for convenience.
Named vector:
A |
Flow area [L^2]. |
P |
Wetted perimeter [L]. |
R |
Hydraulic radius [L]. |
dAdy |
Water surface width [L]. |
dPdy |
First derivative of wetted perimeter w.r.t. flow depth. |
dRdy |
First derivative of hydraulic radius w.r.t. flow depth. |
DH |
Hydraulic depth [L]. |
ybar |
Vertical distance from water surface to centroid of flow area [L]. |
1 2 | channel_geom(1.71, 100, 0) # rectangular channel
channel_geom(5.79, 6.1, 1.5) # trapezoidal channel with sideslope 3H:2V
|
A P R dAdy dTdy dPdy
171.0000000 103.4200000 1.6534519 100.0000000 0.0000000 2.0000000
dRdy DH ybar
0.9349555 1.7100000 0.8550000
A P R dAdy dTdy dPdy dRdy
85.6051500 26.9761419 3.1733652 23.4700000 3.0000000 3.6055513 0.4458854
DH ybar
3.6474286 2.3281400
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.