In-situ calibration for temperature-sensitive-paint heat-flux measurement on a finite base. (September 2019)

• Record Type: Journal Article
• Authors: Liu, Tianshu; Risius, Steffen
• Is Part Of: International journal of heat and mass transfer. Volume 140(2019)
• Page Start: 420
• Page End: 425
• Publication Date: 2019-09
• Subjects: In-situ calibration -- Heat flux -- Image-based heat flux measurement -- Inverse heat transfer -- Temperature-sensitive paint -- Hypersonic wind tunnel; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2019.06.021
• Languages: English
• ISSNs: 0017-9310

Abstract

Highlights: The in-situ calibration method for temperature-sensitive-paint (TSP) heat-flux measurements is developed by using the data obtained with a heat-flux sensor based on the analytical inverse heat transfer solution. The developed in-situ calibration method is used in TSP measurements in a high-enthalpy shock tube. The proposed method is useful for TSP measurements in various facilities. Abstract: This work incorporates in-situ calibration into the analytical inverse heat transfer solution for a finite base in temperature-sensitive-paint (TSP) measurements in high-enthalpy short-duration hypersonic wind tunnels. The thermal penetration parameter of the polymer layer (TSP) in the analytical inverse solution is determined by in-situ calibration based on the data obtained using a reliable heat flux sensor at a reference location. This method is applied to TSP images obtained on a wedge in a high-enthalpy shock tunnel.