Geophysical fluid dynamics in the hypergravity field  

超重力场中的地球流体动力学

作　　者：Harry Yeh 

机构地区：[1]School of Civil&Construction Engineering,Oregon State University,Corvallis,OR,97331,USA

出　　处：《Acta Mechanica Sinica》2024年第6期3-10,共8页力学学报（英文版）

基　　金：supported by the US National Science Foundation(Grant No.CMMI-1538211)。

摘　　要：Hypergravity can be realized by creating a field imposed by centripetal acceleration in a centrifuge apparatus.Such an apparatus is often used to test soil response in geotechnical engineering problems.Here we present the potential usage of a centrifuge apparatus to study various topics in hydrodynamics.The scaling law associated with hydrodynamics is first reviewed,and the advantage of controlling the body force is described.One of the perceived disadvantages in such experiments is the unwanted presence of the Coriolis effect in the centrifuge.However,we propose exploiting this effect to our advantage to study geophysical fluid-dynamic problems that occur particularly in the equatorial region.超重力可以通过在离心机装置中创建由向心加速度施加的场来实现.这样的装置通常用于测试岩土工程问题中的土壤响应.本文介绍了离心机装置在研究流体力学中各种主题的潜在应用.本文首先回顾了与流体力学相关的尺度定律,并描述了控制体积力的优势.在这样的实验中,其中一个被认为是不利因素的是离心机中存在的科里奥利效应.然而,我们提出利用这种效应来研究在赤道地区特别发生的地球物理流体动力学问题,从而将其转化为我们的优势.

关 键 词：HYPERGRAVITY SCALING Geophysical fluid dynamics CENTRIFUGE 

分 类 号：O35[理学—流体力学]