Boundary-Layer Flow at an Air-Water Interface with Spray Entrainment

The efIect of spray entrainment on Ihe mean wind profile above s wavy water surface has heen treated by including an additional spray stress term in the log law for Lurbulent boundary-layer flow. The results of measurtments in a high-sped wind/weve channel support the mndified lug law and Lhr partitioning of the vertical mtmentum flux betwcen wparation drag on the wave sh~pc and acceleration of cntraincd water drops. An existing correlation for the log he ruughness parameter for did houndaries is shown to apply Lu the wavy water snrfacr. At Lhc maximorn channel wind speed of 25 m/s, the drag force on Lhr npraj- accounted Cor 30-35% of the momentum flux inlu the sheur layer.