Small Grants for Exploratory Research: An Investigation of Small Scales of Turbulence in a Boundary Layer at High Reynolds Numbers

SGER补助金（探索性研究小额补助金）a 湍流局部各向同性试验将通过 美国国家科学基金会的一名赠款人在一个大雷诺数风洞， NASA艾姆斯研究实验室。实验将使用特殊的 微型多元热线探头及其测试 各向同性将基于速度梯度数据。 实验将有助于解决有效性的问题 普遍认为的普遍性假设 高雷诺数下的湍流尺度以及范围 这个概念的有效性。这一概念构成了 目前各种工程中的湍流模型 系统，而这种预测模型的改进需要 澄清这一基础。

Under an SGER grant (Small Grant for Exploratory Research) a test for local isotropy of turbulence will be carried out by an NSF grantee at a large Reynolds number windtunnel at the NASA Ames Research Laboratory. The experiment will use special miniature multielement hot-wire probes, and the test for isotropy will be based on velocity gradient data. The experiment will help settle the question of how valid is the commonly held assumption of universality at the fine scales of turbulence at high Reynolds numbers, and the range of validity of this concept. Th concept forms the basis of present models of turbulent flow in various engineering systems, and improvement in such predictive models requires clarification of this basis.