Bonneville Powerhouse 2 3D CFD for the Behavioral Guidance System

doi:10.2172/973411

GSTDTAP > 地球科学

DOI	10.2172/973411
报告编号	PNNL-19016
来源ID	OSTI ID: 973411
	Bonneville Powerhouse 2 3D CFD for the Behavioral Guidance System
	Rakowski, Cynthia L.; Richmond, Marshall C.; Serkowski, John A.
	2010-02-01
出版年	2010
语种	英语
国家	美国
领域	地球科学
英文摘要	In 2008 and 2009, a 700 ft long, 10-ft deep floating forebay guidance wall called a behavioral guidance structure (BGS) was deployed in the Bonneville Powerhouse 2 forebay. The US Army Corps of Engineers, Portland District (CENWP) contracted with the Pacific Northwest National Laboratory (PNNL) to develop computational tools to assess the impact of the BGS on forebay hydraulics (this study). The tools developed here to provide a characterization of forebay hydraulics to be integrated with acoustic telemetry studies designed to measure the impact on juvenile salmon guidance and survival through Bonneville Powerhouse 2. In previous work, PNNL performed computational fluid dynamics (CFD) studies for the Bonneville forebay for CENWP. In this study, the existing model was modified to include the BGS. The model included a bay-by-bay spillway, a truncated Powerhouse 1 forebay, Powerhouse 2 turbine intakes and corner collector, and the forebay bathymetry extending approximately 1.5km upstream from the tip of Cascade Island. Model validation outcomes were similar to that of past studies. Additional checks were included on the impact of the differencing scheme to flow solution. It was found that using upwind differencing was adequate and it was possible to use a truncated computational mesh of this model that included a BGS upstream of Powerhouse 2 and increased spatial resolution in the vicinity of the BGS. This model has been validated, run, and provided to CENWP to use for additional analysis of the Powerhouse 2 forebay hydraulics. The PNNL particle tracking software (PT6) was used to assess the impacts of mass and relative buoyancy on particle fate. The particle tracker was run for the Half Load case for the clean forebay and for the forebay with the BGS in place and the Corner Collector on. All tracker cases showed that the BGS moved the particles across the forebay increasing the number of particles exiting the model through the Corner Collector and (for streamlines and neutrally-buoyant particles) the lower numbered turbine units.
英文关键词	computational fluid dynamics behavioral guidance system Bonneville Dam salmon passage
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/4779
专题	地球科学
推荐引用方式 GB/T 7714	Rakowski, Cynthia L.,Richmond, Marshall C.,Serkowski, John A.. Bonneville Powerhouse 2 3D CFD for the Behavioral Guidance System,2010.