Title
Fingerling Fish Research, High-Velocity Flow Through Four-Inch Nozzle
Date
1972
Keywords
high velocity, mortality
Summary
First paragraph: This report concludes scheduled tests on mortality of fingerling salmonid fish as they are carried into relatively still water by a submerged, high-velocity jet of water. Report No. 1 (20 August 1970) and Report No. 2 (1 December 1970) covered prior tests with maximum jet velocities of 57.5 through a six-inch nozzle and 67 fps through a four-inch nozzle, respectively. This report includes data from tests made with velocities up to a maximum of 92 fps through the four-inch nozzle. Four velocities, 57.5, 67, 77.5, and 92 fps, were used to establish a relationship between mortality and velocity. Data from the tests are summarized in Table 1 and on Figure 1, which include a portion of the data from Table 1 of Report No. 2