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A plug nozzle has been studied as a promising nozzle from a viewpoint of improving thrust efficiency for rocket or space plane. In the field of mechanical engineering, supersonic jets from a Laval or ...a conical nozzle are frequentlry used as a cleaning tool, cooling tool, mixing tool, etc. The plug nozzle also has possibility applicable to the field of mechanical engineering as well, however, the jet structure of the plug nozzle is now well known. The purpose of this paper is to clarify the structure of jets from a plug nozzle by solving Euler equations numerically. The jet flowfield is computed for an axisymmetric plug with a design Mach number 2.0, and the velocity distributions on jet center line are obtained for the over, correct and underexpanded supersonic jets. The structures of the jets issuing from a plug nozzle are highly complicated and are found to be quite different from the jets from a Laval nozzle.続きを見る
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Mendeley出力
