Geometric sensitivity of the NSTAP

IF 2.3 3区工程技术 Q2 ENGINEERING, MECHANICAL

Experiments in Fluids Pub Date : 2025-02-11 DOI:10.1007/s00348-025-03983-5

Ian E. Gunady, Liuyang Ding, Marcus Hultmark, Alexander J. Smits

引用次数: 0

Abstract

The nanoscale thermal anemometry probe (NSTAP) has been widely used to measure turbulence levels in high Reynolds number flows. Here, we report that the probe measurements are geometrically sensitive to its particular orientation in the flow under certain conditions. The geometric sensitivity appears as an amplification of the turbulence signal but has no effect on the mean. Data are taken using an NSTAP in multiple configurations and compared to data from previous studies and a conventional hot-wire. Results suggest that geometric sensitivity is caused by a difference between the mean and dynamic calibrations of the NSTAP.

查看原文本刊更多论文

NSTAP 的几何灵敏度

纳米尺度热风速测量探针（NSTAP）被广泛用于测量高雷诺数流中的湍流水平。在这里，我们报告了探头测量在一定条件下对其在流动中的特定方向具有几何敏感性。几何灵敏度表现为湍流信号的放大，但对平均值没有影响。使用NSTAP在多种配置下获取数据，并与之前的研究数据和传统热线数据进行比较。结果表明，几何灵敏度是由NSTAP的平均校准和动态校准之间的差异引起的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Experiments in Fluids 工程技术-工程：机械

CiteScore

5.10

自引率

12.50%

发文量

157

审稿时长

3.8 months

期刊介绍： Experiments in Fluids examines the advancement, extension, and improvement of new techniques of flow measurement. The journal also publishes contributions that employ existing experimental techniques to gain an understanding of the underlying flow physics in the areas of turbulence, aerodynamics, hydrodynamics, convective heat transfer, combustion, turbomachinery, multi-phase flows, and chemical, biological and geological flows. In addition, readers will find papers that report on investigations combining experimental and analytical/numerical approaches.