Abstract
The paper studies effect of momentum injection, accomplished through circular cylindrical rotating elements, on the pressure distribution at the roof of a model house. Extensive wind tunnel tests, complemented by flow visualization, suggest that such Moving Surface Boundary-layer Control (MSBC) effectively delays separation and significantly increases the pressure, both on leeward and windward surfaces. This would assist in protection of the roof against wind storms and snow accumulation.
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Vinod J. Modi: He received a bachelor’s degree in mechanical and electrical engineering from Bombay University in 1953. Recipient of several fellowships, he obtained his M.S. at the University of Washington (1956) and Ph.D. from Purdue University (1959), both in aerospace engineering. He is currently a professor emeritus at the University of British Columbia, Canada. His contributions are recognized by a number of international awards including the American Astronautical Society’s (AAS) Dirk Brouver Award (1991), the Canadian Aeronautics and Space Institute’s (CASI) McCurdy Award (1993), and AIAA’s Mechanics and Control of Flight Award (1996). He is a fellow of the AAS, AIAA, ASME, CASI, the British Interplanetary Society, the Royal Society of Canada, as well as a member of the International Academy of Astronautics.
Toshio Yokomizo: He received his master degree in science education in 1961 from International Christian University, the thesis is “The motion of magnetized bodies under their field” and his degree of Dr.(Eng) in 1982 from Kanto Gakuin University(KGU), the title is “On the experimental study of the cavitation bubble flow, shock intensity and erosion”. After the master degree, he belonged to the faculty of KGU as a teaching staff. His research interests in flow analysis for bluff body, flow deformed blood vessel, super sonic nozzle, flow meter, fluid machinery and mixing of two-phase flow. He is one of authors “Understanding of fluid dynamics”, published by Nisshin Shuppan Co. in 1994. Main author is Dr. Masanobu Yamamasu, emeritus professor of KGU.
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Modi, V.J., Yokomizo, T. Pressure distribution on a roof in presence of the Moving Surface Boundary-layer Control. J Vis 1, 255–260 (1999). https://doi.org/10.1007/BF03181406
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DOI: https://doi.org/10.1007/BF03181406