It is widely assumed that onshore winds significantly increase runup and overtopping; several recent research results have indeed shown that this effect cannot be neglected. The effects of the wind and of the spray generation on the overflow phenomenon thus seem to be important in the design of seawalls, even though they are difficult to quantify through hydraulic model experiments due to the problem of wind scaling. The use of a numerical model overcomes the limits of scale effects in experimental tests, thus making it possible to consider the action of wind-induced shear stress on the increase of the up-rushing jet near the wall. The present work presents a numerical wind stress model that takes into account such action on wave overtopping.
CFD ANALYSIS OF WIND EFFECT ON WAVE OVERTOPPING
Di Leo Angela
;Dentale Fabio;Pugliese Carratelli Eugenio
2022-01-01
Abstract
It is widely assumed that onshore winds significantly increase runup and overtopping; several recent research results have indeed shown that this effect cannot be neglected. The effects of the wind and of the spray generation on the overflow phenomenon thus seem to be important in the design of seawalls, even though they are difficult to quantify through hydraulic model experiments due to the problem of wind scaling. The use of a numerical model overcomes the limits of scale effects in experimental tests, thus making it possible to consider the action of wind-induced shear stress on the increase of the up-rushing jet near the wall. The present work presents a numerical wind stress model that takes into account such action on wave overtopping.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
