Paper Title:
Experimental Investigation on Reaeration Performance in Parallel Flashboard Spillway
  Abstract

The reaeration performance in smooth and parallel flashboard spillways with 3cm, 6cm and 9cm board space over curve dams has been experimentally investigated respectively. Reaeration efficiencies of different types of spillways, in particular the effects of varying discharge rate of overflow and drop-water depth have been taken account in detail. The test data illustrates that the reaeration efficiency increases with increasing drop-water depth, and decreases with increasing discharge current; the flashboard spillways appear to offer markedly higher reaeration efficiency than the smooth spillway, which increases gradually with reduction of the space between streamwise adjacent flashboards. Empirical correlations predicting spill Froude number Fdo, relative weir depth hw/h and reaeration efficiency of different types of spillways on curve dams are developed. The results indicate that flashboard spillways are effective for oxygen transfer.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 3: Development and Utilization of Wind Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
2375-2379
DOI
10.4028/www.scientific.net/AMR.347-353.2375
Citation
K. J. Chu, Z. L. Hua, L. Gu, X. D. Liu, Q. M. Li, "Experimental Investigation on Reaeration Performance in Parallel Flashboard Spillway", Advanced Materials Research, Vols. 347-353, pp. 2375-2379, 2012
Online since
October 2011
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Price
$32.00
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