STUDY OF A MULTI-LAYERED THIN FILM HEAT TRANSFER GAUGE AND A NEW METHOD OF MEASURING HEAT TRANSFER RATE WITH IT.

Masanori Hayashi, Akira Sakurai, Shigeru Aso

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A new type of thin-film heat transfer gauge with high spatial resolution and fast response is proposed for the measurement of the heat flux in wind tunnels with a long flow duration. The principle of the sensor is based on measuring the temperature gradient across a thin, heat-resistant layer of SiO with two, thin-film resistance thermometers on its upper and lower surfaces. These thin films and heat-resistant layer are deposited by the vacuum evaporation technique. The design consideration, the accuracy of the sensor, and the calibration technique are discussed. The sensor is applied to the measurement of the heat flux in a turbulent boundary layer on a flat plate at a Mach number of 4, a wall temperature ratio of 0. 64 and a Reynolds number of 1. 4 multiplied by 10**7.

Original languageEnglish
Pages (from-to)91-101
Number of pages11
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Volume30
Issue number88
Publication statusPublished - Aug 1 1987

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

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