Indexed by:期刊论文

Date of Publication:2011-06-01

Journal:CANADIAN JOURNAL OF CIVIL ENGINEERING

Included Journals:Scopus、SCIE、EI

Volume:38

Issue:6

Page Number:605-615

ISSN No.:0315-1468

Key Words:ship's propeller jet; laser Doppler anemometry (LDA); computational fluid dynamics (CFD); momentum decay; energy decay

Abstract:Previous researchers use the velocity decay as an input to investigate the ship's propeller jet induced scour. A researcher indicated that most of the equations used to predict the stability of various protection systems are often missing a physical background. The momentum decay and energy decay are currently proposed as an initial input for seabed scouring investigation, which are more sensible in physics. Computational fluid dynamics (CFD) and laser Doppler anemometry (LDA) experiments are used to obtain the velocity data and then transforming into momentum and energy decays. The findings proposed several exponential equations of velocity, momentum and energy decays to estimate the region exposed to the seabed scouring.