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An efficient correction for the finite-size effects of multihole pressure probes in velocity gradients

Valery Chernoray (Institutionen för tillämpad mekanik, Strömningslära) ; Johan Hjärne
Proc. of XXII International Congress of Theoretical and Applied Mechanics, Adelaide, Australia, Aug. 24–29 p. 1–2. (2008)
[Konferensbidrag, övrigt]

This study describes an implementation and verification of an efficient and reliable correction for the finite-size effects of pressure probes. The performance of the correction in application to the highly three-dimensional flow downstream of the linear cascade is scrutinized through a detailed side-by-side comparison with corresponding cross hot-wire data. The influence of the correction on all three velocity components, flow streamlines and streamwise vorticity fields is thoroughly examined. The study demonstrates that the correction lead to a significant improvement of the velocity data. A very good performance of the correction for the finite-size effects of pressure probes presented in this study allow us to recommended it as a mandatory step in postprocessing procedures for multi-hole pressure probes.



Denna post skapades 2008-09-25.
CPL Pubid: 74413

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära

Ämnesområden

Strömningsmekanik

Chalmers infrastruktur