Simulation of undular bores evolution with damping

Tiong, W. K. and Tay , K. G. and Ong, C. T. and Chiew, K. L. (2017) Simulation of undular bores evolution with damping. Dynamics of Continuous, Discrete and Impulsive Systems Series B: Applications & Algorithms, 24 (2). pp. 113-126. ISSN 14928760

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Propagation of undular bores with damping is considered in the framework of perturbed extended Korteweg-de Vries (peKdV) equation. Two types of damping terms for the peKdV equation, namely linear and Chezy frictional terms, which describe the turbulent boundary layers in the fluid flow are considered. Solving the peKdV equation numerically using the method of lines shows that under the influence of damping, the lead- ing solitary wave of the undular bores will split from the nonlinear wavetrain, propagates and behaves like an isolated solitary wave. The amplitude of the leading wave will remain the same for some times before it starts to decay again at a larger time. In general the amplitude of the leading wave and the mean level across the undular bore decreases due to the effect of damping.

Item Type:Article
Uncontrolled Keywords:Undular bores; damping; linear friction; Chezy friction; extended Korteweg-de Vries equation
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA349-359 Mechanics of engineering. Applied mechanics
Divisions:Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
ID Code:10319
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:26 Aug 2018 15:59
Last Modified:26 Aug 2018 15:59

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