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High-Precision Trigonometric Leveling Based on Correction with Atmospheric Refraction Coefficient Model
Publisher: ASCE
Abstract: When an electromagnetic wave passes through the atmosphere, due to variation of atmospheric parameters, its propagation path is usually altered and the propagation speed also changes. Therefore, errors will be induced in ...
Experimental Investigation on Influence of Aeration on Plane Jet Scour
Publisher: American Society of Civil Engineers
Abstract: A series of experiments was conducted to investigate the influence of aeration on plane jet scour. The scour holes caused by the aerated and the nonaerated jets were compared under the same conditions of jet velocity, water ...
Modified Bottom Air Entrainment Estimate by Chute Offset Aerator
Publisher: ASCE
Abstract: Offset aerators are a common design for the prevention of cavitation damage to chute spillways. The aeration capacity is linked to the offset air cavity length and jet velocity. Observations suggest that air entrainment ...
Roller Characteristics of Preaerated High-Froude-Number Hydraulic Jumps
Publisher: ASCE
Abstract: A hydraulic jump in a stilling basin at the base of spillway is typically characterized by preaerated inflow conditions. This paper presents an experimental study of high-Froude-number hydraulic jumps with different ...