Dispersion Process of Jet Engine Exhaust Plume : 2nd Report, Buoyant Jet

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概要

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• In the previous paper the initial dispersion process of jet engine exhaust plume was discussed with the data of jet engine field test as well as those of the model test. The momentum dominant region in the jet was treated mainly, and the model test was carried out for a few nozzle heights over the ground board corresponded to the engine installing heights of the aircraft. There are considerable differences in the ratio of inertia to buoyant forces in the jet between the engine operating modes, i.e., in takeoff mode (TO) the inertia is dominant, while the buoyancy is dominant in idling mode (ID). These typical conditions of TO and ID modes were examined and the results are compared with each other and with those of field test. The source position of atmospheric turbulent diffusion after the jet dispersion is estimated from these results.

• 一般社団法人日本機械学会の論文

著者

• Nishi Akira

  Faculty Of Engineering Miyazaki University

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