Rock-ramp fishpasses
The rock-ramp fishpass calculation module makes it possible to calculate the characteristics of a rock-ramp pass made up of uniformly distributed blocks with equal transverse
Excerpt from Larinier et al., 20061
The tool allows you to calculate one of the following values:
- The width of the pass (m);
- The slope of the pass (m);
- The flow rate (m3/s);
- The depth
(m); - The concentration of the blocks.
It requires the following values to be entered:
- The upstream bottom coordinate (m);
- The length of the pass (m);
- The background roughness (m);
- The width of the blocks
facing the flow (m); - The useful height of the blocks
(m); - The drag coefficient of a single block (1 for round, 2 for square).
Bed roughness
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Larinier, Michel, Courret, D., Gomes, P., 2006. Technical guide for the design of "natural" fish passes, GHAPPE RA Report. Compagnie Nationale du Rhône / Adour Garonne Water Agency. http://dx.doi.org/10.13140/RG.2.1.1834.8562 ↩