| Autor: |
Niranjan Sahoo, Pankaj Kalita, Anil Kumar Rout |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Mechanical Engineering ISBN: 9789811577789 |
| DOI: |
10.1007/978-981-15-7779-6_5 |
| Popis: |
Measurement of transient heat flux values is a challenging task as it requires fast response sensors. The standard heat flux sensors cannot satisfy the requirement for transient measurement due to more response time. Therefore, a thermal probe has been prepared in-house for capturing transient response in high speed flows especially in aerodynamics studies. The probe has been fabricated from bare chromel and constantan thermoelements named as “coaxial surface junction thermocouple (CSJT).” Experiments are carried out for heat flux calibration with the help of a laser unit to access the capability of the probe in measuring heat flux values. The inferred experimental temperature signal is used to estimate the surface heat flux values analytically. Similarly, a numerical simulation has been performed to validate the results. The values are found to have a matching with the applied heat flux in terms of trend and magnitude in a timescale of 0.4 s. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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