REU Supplement: Mass Transfer and Two-Phase Flow

本项目有四个方面的内容：(1)对湍流流动的液体与固体壁面之间的传质速率和湍流空气对同时流动的液体的吸氧速率进行了新的物理解释；(2)研究了湍流流体中颗粒的分散，以了解流体湍流对沉积在含流管壁上的速率的影响；(3)存在于高速气液流动中的环形流态具有沿壁面移动的膜和湍流同时流动的气体中夹带的液滴。在实际环空流动条件下，对壁面膜雾化形成液滴的速率和壁面膜上液滴沉积的速率进行了研究；(4)对波浪上湍流的速度场进行了测量，以理解和预测波浪上的压力和剪切力。

This project has four aspects: (1) new physical interpretations of mass transfer rates between a turbulently flowing liquid and a solid wall and oxygen absorption rates from turbulent air to a concurrently flowing liquid are developed; (2) the dispersion of particles in turbulently flowing fluids is studied to understand the influence of fluid turbulence on the rate of deposition upon the pipe wall that contains the flow; (3) the annular regime that exists for high velocity gas-liquid flows has a film that moves along the wall plus droplets entrained in the turbulent concurrently flowing gas. Studies of the rate of formation of drops by atomization of the wall film and the rate of depositon of droplets on the wall film under actual annular flow conditions are being conducted; and (4) measurements of the velocity field for turbulent flow over a wave are being made to understand to predict the pressure and shear forces on the wave.