Abstract
An approach to measure heat flux in transpiration-cooled environments from plenum pressure gauges is presented. The inverse problem of determining the net surface heat flux from an in-depth temperature measurement is replaced by the measurement of the pressure change in the gas reservoir at the rear side of the porous structure. The measurement is based on an in situ calibration using noninteger system identification. The pressure data are directly related to the net surface heat flux. In comparison with temperature readings at different depths and by analyzing different coolant gas mass flows, the hypothesis is that the main pressure increase is evolving over the thickness of the sample due to the heat flux at the surface. Consequently, the measurement of plenum pressure changes at constant outflow pressure conditions to analyze surface heat flux is considered a valuable tool for future heat flux measurements in transpiration-cooled environments.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
