Results 101 to 110 of about 1,987 (214)

Cavitation Characteristics and Aeration Mitigation for the Sidewall of a Radial Gate in a High-head Tunnel

工程科学与技术
Objective In high-head spillway tunnels, aeration devices are often installed at the outset of the radial gate to reduce cavitation erosion. Despite these precautions, cavitation erosion persists due to the complex flow pattern near the radial gate. Once
Wei WANG, Jun DENG, Wangru WEI
doaj  

Experimental Static Cavitation Tunnel for Underwater Marine Propeller Cavitation Study [PDF]

Advanced Science Letters, 2018
Wai Heng Choong, Kiam Beng Yeo, Fadzlita Mohd Tamiri, M. Noh Dalimin   +3 more
openaire   +1 more source

Nuceli Effects on Tip Vortex Cavitation Scaling

, 2001
A cavitation susceptibility meter has been used by the US Navy for 16 years to measure the tensile strength of water in the NSWCCD water tunnels, Lake Pend Oreille in Idaho, Exuma Sound in the Bahama Islands, the Pacific Ocean along the US West Coast ...
Gowing, Scott, Shen, Young T.
core  

Hydroacoustic characterisation of the AMC cavitation tunnel

, 2013
This paper presents recent results from an Industry-University-Defence collaborative project whose aim is to characterise the hydroacoustic environment of the Australian Maritime College Cavitation Tunnel. After summarising the operation of the tunnel, a
Brooks, L., Brandner, P., Butler, D., Pearce, B., Doolan, C., Moreau, D.   +5 more
core   +1 more source

An experimental investigation into the resistance characteristics of dimpled plates at high Reynolds numbers

Brodogradnja
Over the past quarter-century, substantial research has been conducted on the potential of dimpled surfaces to passively reduce turbulent friction resistance.
Aras Çetinkaya, Uğur Oral Ünal
doaj   +1 more source

Tip Leakage Cavitation, Associated Bubble Dynamics, Noise, Flow Structure and Effect of Tip Gap Size

, 2001
This paper focuses on the onset of tip-leakage cavitation on a fixed hydrofoil. The objectives are to investigate the effect of gap size on the flow structure, conditions of cavitation inception, the associated bubble dynamics and cavitation noise.
Gopalan, Shridhar, Katz, Joseph, Liu, Han L.   +2 more
core  

Experimental investigation of unsteady force suppression in a pump-jet rotor using oscillating stator trailing edge

Zhongguo Jianchuan Yanjiu
ObjectiveUnsteady forces generated by pump-jet rotors are a key factor affecting the vibration and noise levels of underwater vehicles. These forces not only induce structural vibrations through coupling between the propeller, shafting, and hull systems,
Wanghao TANG, Junjie XU, Xiuchang HUANG
doaj   +1 more source

Erosion and impact intensity of vibratory, jet and turbine cavitation [PDF]

The ratio of the cavitation erosion resistance of the new austenitic stainless steel Hydroloy to the one of the standard 308 has been found to vary from 11 to 16 in vibratory cavitation tests to about 5 in large hydroturbines. Cavitation erosion tests in
Bourdon, Paul, Simoneau, Raynald
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Incipient cavitation of ethylene glycol in a tunnel venturi

, 1965
Incipient cavitation studies with ethylene glycol and water over range of flow velocities and liquid temperatures in tunnel-mounted ...
Gelder, T. F., Moore, R. D., Ruggeri, R. S.   +2 more
core  

Observations and numerical simulations of unsteady partial cavitation on 2-D hydrofoil [PDF]

, 2009
In present paper, experimental observations and numerical simulations are used to understand some flow mechanism of partial cavity, such as the instability of attached sheet cavitation and the relations between cloud cavitation and erosion.
Peng, Xiaoxing
core