Acoustic Doppler Current Profiler Surveys of Velocity Downstream of Albeni Falls Dam

Perkins, William A. ; Titzler, P. Scott ; Richmond, Marshall C. ; Serkowski, John A. ; Kallio, Sara E. ; Bellgraph, Brian J.

Pacific Northwest National Laboratory (U.S.)

关键词: Flow Rate;    Installation;    Dams;    Acoustic Measurements;    Feasibility Studies;   

DOI  :  10.2172/1004827
RP-ID  :  PNNL-19816
RP-ID  :  AC05-76RL01830
RP-ID  :  1004827

美国|英语

来源: UNT Digital Library

【 摘 要 】

The U.S. Army Corps of Engineers (USACE), Seattle District, is studying the potential to locate fish bypass systems at Albeni Falls Dam. The USACE requested Pacific Northwest National Laboratory (PNNL) to survey velocity magnitude and direction in the dam tailrace. The empirical data collected will be used to support future numerical modeling, physical modeling, and evaluation of fish bypass system alternatives. In May 2010, PNNL conducted velocity surveys of the Albeni Falls Dam using a boat-mounted acoustic Doppler current profiler. The surveys were conducted over three days (May 25 through 27). During the survey period, total river discharge at the dam varied between 30.2 and 31.0 kcfs. A small amount of spill discharge, 2 kcfs, was present on two days (May 26 and 27). This report presents data plots showing measured velocity direction and magnitude averaged over the entire depth and over 5-ft depth increments from 5 to 30 ft.