Wind tunnel experiments were conducted on a series of two-dimensional perforated plates normal to an air stream to study the characteristics of unsteady wake pressures and to ascertain the parameters amongst which a certain level of correlation can be established. The velocity ranged from 5 m/s to 15 m/s in the present study. The pressure field gets significantly modified as the perforation level increases. The present study is concerned with three plates with perforation level of 0%, 25% and 35%. There appears to be a correlation between the maximum normalized value of the RMS pressure fluctuation levels, base pressure and the perforation level of the normal plate.

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dc.contributor.authorYaragal, S.C.
dc.contributor.authorGovinda Ram, H.S.
dc.contributor.authorTamura, Y.
dc.date.accessioned2026-02-05T11:00:17Z
dc.date.issuedExperimental investigation of the 2-D flow field associated with bleed flows
dc.description.abstract2005
dc.identifier.citationJournal of the Institution of Engineers (India): Civil Engineering Division, 2005, 86, NOV., pp. 109-112
dc.identifier.issn3731995
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27906
dc.subjectBleed flows
dc.subjectTwo dimensional plates
dc.subjectUnsteady characteristics
dc.subjectWake pressures
dc.subjectCorrelation methods
dc.subjectParameter estimation
dc.subjectPlates (structural components)
dc.subjectPressure measurement
dc.subjectWakes
dc.subjectWind tunnels
dc.titleWind tunnel experiments were conducted on a series of two-dimensional perforated plates normal to an air stream to study the characteristics of unsteady wake pressures and to ascertain the parameters amongst which a certain level of correlation can be established. The velocity ranged from 5 m/s to 15 m/s in the present study. The pressure field gets significantly modified as the perforation level increases. The present study is concerned with three plates with perforation level of 0%, 25% and 35%. There appears to be a correlation between the maximum normalized value of the RMS pressure fluctuation levels, base pressure and the perforation level of the normal plate.

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