Open-Channel Chute Flow Analysis

• Main Authors: Wang, Kun-Pao, 王昆保
• Other Authors: Hsu, Chung-C.
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/22950202375055464346

碩士 === 淡江大學 === 水資源及環境工程學系 === 85 === This study presents experimental analysis for open-channel chute flow at channel bed with 30, 35, 38, and 41 degrees. The channel bed was coated by plastic blankets with rough surface to simulate the Manning''s roughness coefficients. The Manning''s roughness coefficients were equal 0.020, 0.022, and 0.025. The location of white water inception point was found to be proportional to bed slope and inversely proportional to Reynolds number and Manning''s roughness coefficient. The Manning''s roughness coefficients were further modified by the experimental data. Relationships between the effective depth or the depth with air concentration being 95% and the depth calculated by the standard step without air concentration were found which enable the depth-averaged air concentration to be calculated.