IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 4: Responding to Shifting Water Resources : The effect of random inhomogeneities of pipe cross-sectional area on wave propagation
The effect of random inhomogeneities of pipe cross-sectional area on wave propagation
Author : H.-F. Duan1, J.L. Lu1, A.A. Kolyshkin2 and M.S. Ghidaoui1
Method of multiple scales is used in the present paper to derive an amplitude evolution equation for wave propagation in pipes where the area of the pipe contains random component. The derivation is based on one-dimensional linearized water hammer equation for pipe flows. Analytical results and numerical simulations confirm that waves are attenuated if the area of the pipe changes randomly along the longitudinal direction provided that the amplitude of the random component is small in comparison with the area of the pipe.
File Size : 517,657 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 4: Responding to Shifting Water Resources
Date Published : 01/07/2011
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