Work

An innovative flow-measuring device - Thermocouple boundary layer rake

Year: 2002

Type: conference-paper

Abstract: An innovative flow-measuring device, a thermocouple boundary layer rake, was developed. The sensor detects the flow by using a thin-film thermocouple (TC) array to measure the temperature difference across a heater strip. The heater and TC arrays are microfabricated on a constant-thickness quartz strut with low heat conductivity. The device can measure the velocity profile well into the boundary layer, about 65 gm from the surface, which is almost four times closer to the surface than has been possible with the previously used total pressure tube.

Source: AIAA Aerospace Sciences Meeting and Exhibit

DOI: 10.2514/6.2002-289

Authors: D. Hwang, G. Fralick, L. Martin, J. Wrbanek, C. Blaha

Institution: Glenn Research Center

Language: English

Topic: Flow Measurement and Analysis

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Aeronautics and Space Administration, Glenn Research Center

OpenAlex ID: W2113605275