Drag characteristics of a turbulent boundary layer over a flat plate with transverse square grooves |
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| Authors: | C Y Ching B L Parsons |
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| Institution: | (1) Faculty of Engineering & Applied Science, Memorial University of Newfoundland, St. John’s, NF, A1B 3X5 Canada, CA;(2) NRC Institute for Marine Dynamics, St. John’s Newfoundland, NF, A1B 3T5, Canada, CA |
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| Abstract: | The effect of transverse square grooves on the drag characteristics of a flat plate has been investigated using direct drag
measurements in a tow tank. Two flat plates with 2.5 and 5 mm transverse square grooves, with groove spacing (s) to groove width (w) ratio, s/w=10, 20 and 40, were tested at plate length Reynolds numbers in the range 2–10×106. There is an increase in drag over the “smooth” plate for all s/w configurations.
Received: 31 December 1997/Accepted: 4 April 1998 |
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