Surfzone Turbulence and Bubble Dynamics

Trowbridge_0136088A将进行现场调查，以研究气泡及其相关浮力在冲浪区能量平衡中的作用。现有的测量结果与该地区现有的湍流耗散模型不一致。假设与气泡相关的显著浮力通量可能对平均密度有重要影响，并因此对消散有重要影响。将估计由于空气卷吸而产生的耗散、空泡率和浮力通量的垂直结构。关于能量收支和冲浪区湍流的新理论将被定义和检验。

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.