A Novel Apparatus for Simulating Oceanic Turbulence in the Laboratory

P.I.韦伯斯特，唐纳德（格鲁吉亚理工学院）提案编号：0219519 PI建议开发一种新的装置，在实验室中模拟海洋湍流。拟议的工作是一个为期一年的努力，完成设计，建造，并验证设备。所提出的设备是上级的传统设计，如网格振荡槽，因为更大的各向同性，改善均匀性，增加简单性，增加可控性，增加可运输性，并降低成本。该系统由一个立方体有机玻璃盒与致动器位于每个角落。每个致动器交替地迫使流体流出和将流体吸入盒壁中的小孔中。这个动作引起了一个湍流脉冲射流从每个角落瞄准盒子的中心;八个致动器的净结果是一个高度各向同性和均匀的湍流区域的体积周围的盒子中心。该系统是基于以前的一种用于气体的装置。一旦验证，该系统将在物理和生物海洋学以及基础流体力学的研究中具有广泛的应用。

P.I. Webster, Donald (Georgia Tech) Proposal #: 0219519The PIs propose to develop a new apparatus to simulate oceanic turbulence in the laboratory. The work proposed is a one-year effort to complete the design, construct, and validate the apparatus. The proposed equipment is superior to traditional designs, such as grid-oscillating tanks, because of greater isotropy, improved homogeneity, increased simplicity, increased controllability, increased transportability, and reduced cost. The system consists of a cubic Plexiglas box with an actuator located at each corner. Each actuator alternatively forces fluid out of and draws fluid into a small hole in the box wall. This action induces a turbulent pulsed jet originating from each corner aimed at the box center; the net result of the eight actuators is a highly isotropic and homogeneous turbulent region in the volume surrounding the box center. This system is based on a previous apparatus constructed for use with gases. Once validated, the system will have broad application for research in physical and biological oceanography as well as fundamental fluid mechanics.