Breaking waves and bubble plumes

Air entrainment and bubble statistics in breaking waves

Gas Transfer in Diffused Bubble Plumes

The gas transfer in aeration systems is broken into two processes: gas transfer at the bubble interface and gas transfer at the water surface. Experiments were conducted to separate these two sources of dissolved gas. Oxygen absorption was measured in a laboratory tank with air being diffused through a porous diffuser and then with nitrogen gas being diffused. The combination of these experimen...

Bubble entrainment by breaking waves and their influence on optical scattering in the upper ocean

Breaking waves at the ocean’s surface inject bubbles and turbulence into the water column. During periods of rough weather the scales of wave breaking will increase with increasing sea states and result in mixing of the surface waters and the turbulent transport of bubbles to depth. Depending on their concentrations and size distribution, the entrained bubbles can significantly change the optic...

High-Fidelity Simulations of Bubble, Droplet, and Spray Formation in Breaking Waves

Plunging wave breaking is of great importance to ship hydrodynamics, including strong turbulence with large amounts of air entrainment, bubbles, droplets, jets, and spray. Previous experimental fluid dynamics (EFD) and computational fluid dynamics (CFD) studies on plunging wave breaking are mainly focused on the global structures of the wave breaking, such as wave elevation, jet, air cavity, an...

Numerical simulation of bubble formation by breaking waves in turbulent two-phase Couette flow