Surfzone Turbulence and Bubble Dynamics

将进行Trowbridge_0136088A现场调查，以研究气泡及其相关浮力在碎波带能量平衡中的作用。 现有的测量不同意目前的湍流耗散模型在这一地区。 据推测，一个显着的浮力通量与气泡可能有一个重要的影响，平均密度，因此，耗散。 由于空气卷吸，耗散，空隙率和浮力通量的垂直结构将被估计。 将定义和检验能量收支和碎波区湍流的新理论。

Trowbridge_0136088A field investigation will be carried out to study the role that bubbles and their associated buoyancy play in the energy balance of the surf zone. Existing measurements do not agree with present models of turbulent dissipation in this region. It is hypothesized that the a significant buoyancy flux associated with bubbles may have an important effect on mean density and, consequently, dissipation. The vertical structure of dissipation, void fraction, and buoyancy flux due to air entrainment will be estimated. New theory for energy budgets and surf zone turbulence will be defined and tested.