American Society of Civil Engineers

Fluid Motion Generated by Impact

by J. J. Monaghan, (Prof., School of Mathematical Sciences, Monash Univ., Clayton, Vic. 3800, Australia), A. Kos, (School of Mathematical Sciences, Monash, Univ., Clayton, Vic. 3800, Australia), and N. Issa, (School of Mathematical Sciences, Monash Univ., Clayton, Vic. 3800, Australia)

Journal of Waterway, Port, Coastal and Ocean Engineering, Vol. 129, No. 6, November/December 2003, pp. 250-259, (doi:

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Journal Paper
Abstract: In this paper we describe laboratory experiments and numerical simulations of the impact between a rigid body and water. The rigid body consists of a weighted rectangular box that slides down a curved ramp to enter the water at an angle to the horizontal of approximately 15. As the box enters the water, a vigorous spray projects fluid beyond the box, then, as the water is heaved up, it falls back on the upper surface of the box and initiates a solitary wave. The experiments cover a wide range of impact velocities and three water depths in the main body of the tank. The experiments have been simulated using the Lagrangian particle method smoothed particle hydrodynamics (SPH).

ASCE Subject Headings:
Rigid-body dynamics
Water flow
Lagrangian functions