1983 Volume 49 Issue 447 Pages 2601-2609
Large-scale unsteadiness in a separation bubble formed at the leading edge of a blunt flat plate with right-angled corners was studied experimentally. The relations between the low-frequency oscillation and accompanying wall-pressure fluctuations were clarified by means of conditional-sampling technique and cross-correlation measurements. A simple velocity-fluctuation model which includes the low-frequency fluctuation was presented to interpret the motion of instantaneous reattachment points in reattaching zone. Outcomes of the model were reasonably compared with the experimental results.
Transactions of the Society of Mechanical Engineers
Transactions of the Japan Society of Mechanical Engineers
Transactions of the Japan Society of Mechanical Engineers Series A