Analysis of five-hole probe calibration parameters
31st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2015, Texas, Amerika Birleşik Devletleri, 22 - 26 Haziran 2015, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası:
- Basıldığı Şehir: Texas
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
© 2015, American Institute of Aeronautics and Astronautics Inc, AIAA.Five-hole pressure probes are used to measure total and static pressure, magnitude and angles of flow velocity vector. Calibration procedure is of high importance to obtain ac- curate results. Different approaches are proposed in literature to obtain calibration coefficients and data reduction algorithm. In this paper, a significance analysis is conducted for the parameters of the third-order multiple regression model used in data reduction process. A new multi regression curve fitting is applied with the most significant parameters. The new reduced model gives more accurate results compared to the first-order regression whereas extensive data acquisition process of the third-order model is eliminated with reduced parameters.