CAREER: The Effect of Clean and Contaminated Free Surfaces on Turbulence and Gas Transfer at an Air-Water Interface: An Integrated Research and Educational Program

摘要CTS-0093794E。科恩，康奈尔大学-国际和平研究所提出了一个综合的研究和教育计划，以检查空气-水界面污染对湍流和气体传输的影响。跨界面的气体交换过程是环境、生物和工业流体力学的基础。实验将在水箱中进行，在有表面活性剂和没有表面活性剂的情况下，网格产生的湍流。用数字粒子跟踪测速仪(DPTV)和激光诱导荧光(LIF)技术测量速度和CO2浓度，以获得流体在界面处的涡旋传输和CO2通量。最终目的是利用实验数据建立界面气体传递的分析模型。

AbstractCTS-0093794E. Cowen, Cornell UniversityThe PI proposes an integrated research and educational program to examine the effect of air-water interface contamination on turbulence and gas transfer. Gas exchange processes across interfaces are fundamental to environmental, biological, and industrial fluid mechanics. Experiments will be conducted in a water tank with grid generated turbulence with and without surfactants. Velocity and CO2 concentration will be measured by digital particle tracking velocimetry (DPTV) and Laser Induced Fluorescence (LIF) techniques to obtain the vortical transport of fluid and flux of CO2 at the interface. The ultimate goal is to use the experimental data to develop an analytical model for gas transfer at the interface.