Abstract
This paper presents results of an experimental study on pressure fluctuation occurring at the inside of narrow slots beneath turbulent boundary layers. Experiments were carried out at a Reynolds number range of 3×10^4<Re_θ<1.25×10^5 using a large re-circulating water tunnel. Fluctuating pressure was measured for three types of slots; two spanwise slots of 1mm and 3mm width and a streamwise slot of 1mm width. In case of spanwise slots, measured pressure spectra show 4-6dB lower values than those measured on smooth surface. However, obtained two-point cross-spectral densities reveal that pressure fluctuations at the inside of the spanwise slot are more coherent than those measured on smooth surface. In case of streamwise slot, pressure fluctuation levels increase remarkably at a low frequency range.
Sign-in/Register to access full text options 
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 callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: 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.
