Fricción y tensión tangencial por fondo con ola y corriente

José S. Antunes do Carmo; A. Temperville; Fernando J. Seabra-Santos

doi:10.4995/ia.2003.2583

Autores/as

José S. Antunes do Carmo Universidad de Coimbra
A. Temperville CNRS
Fernando J. Seabra-Santos Universidad de Coimbra

DOI:

https://doi.org/10.4995/ia.2003.2583

Palabras clave:

Tensión tangencial, Turbulencia, Ola-corriente, Fricción por fondo

Resumen

Se calcula la tensión tangencial debido a ola y corriente mediante un modelo numérico con cierre turbulento K-L, donde K es la energía cinética turbulenta y L es la escala longitudinal de turbulencia. Se obtiene el coeficiente de fricción parametrizado para el caso de flujo turbulento rugoso, siguiendo a Soulsby et al. (1994) y se amplía al caso de flujo turbulento liso. La comparación de estos resultados con otros existentes en la literatura, especialmente los proporcionados por Tanaka y Thu (1994) muestra un buen ajuste.Se propone una nueva parametrización de la serie temporal de la tensión tangencial que incluye el coeficiente de fricción local obteniéndose mejores resultados que aplicando la parametrización propuesta por Soulsby et al. (1994).

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Citas

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