Flow Characteristics of a Three-dimensional, Rectangular Jet Reattaching to an Adjacent Flat Plate
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概要
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A three-dimensional, incompressible jet issuing from a rectangular nozzle with a smaller height (height : a) than the flow passage (height : H) oscillates periodically when the jet is issued into a suddenly enlarged flow passage. In order to obtain some basic knowledge on this oscillatory phenomenon, reattachment properties of a three-dimensional, rectangular jet flow from the nozzle with a/H < 1 to an adjacent flat plate, side wall, are examined. A theoretical analysis using momentum principle is developed for the reattachment distance, mean pressure within separation bubble, etc. The agreement with the experimental results is fairly good. Measurements of velocity profile were made not only about the mean properties of the reattached jet but also about the turbulent properties, √u'2, √v'2, √w'2, and Reynolds shear stress. These theoretical and experimental results are compared with ones for a two-dimensional reattached jet.
- Faculty of Engineering, Mie Universityの論文
- 1987-12-20
Faculty of Engineering, Mie University | 論文
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