Accession Number:

AD1104528

Title:

Theoretical and Experimental Characterization of Turbulent Heat Transfer in Compressible Flows

Descriptive Note:

Technical Report,01 Jun 2016,31 May 2019

Corporate Author:

TRUSTEES OF PRINCETON UNIVERSITY PRINCETON United States

Personal Author(s):

Report Date:

2019-09-10

Pagination or Media Count:

7.0

Abstract:

In this project, we have developed a nano-scale fast thermal anemometry probe to be used in supersonic and hypersonic conditions. The sensor is based on silicon and is manufactured using semiconductor manufacturing techniques. We have characterized how the heat transfer is altered due to the miniaturization and how this can be used to significantly simplify calibration and data analysis. Specifically, it was shown that the relationship between the Nusselt number and the Reynolds number is linear when the sensor is miniaturized, and we have further shown that this is due to slip-conditions. The new sensor was used in a high-speed wind tunnel and compared conventional hot-wires and to Particle Image Velocimetry PIV.

Subject Categories:

  • Thermodynamics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE