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您的检索式：作者名="Miah MD.Ashraful ALAM"
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| 1 | Supersonic Moist Air Jet Impingements on Flat Surface显示文摘Pronounced aeroacoustic resonances are exhibited in the flowfield where a jet emerges from an orifice or a nozzle and impinges on a solid surface.One instance where such resonances are produced is in a high speed jet impingement,such as in the space launch vehicle systems,jet-engine exhaust impingement,and in the short take-off and vertical landing(STOVL) aircraft,etc.A highly unsteady flowfield leading to a drastic increase of noise level with very high dynamic pressure and thermal loads are noticed on nearby surfaces results dramatic lift loss,severe ground erosion and hot gas ingestion to the inlet in the jet engines.This highly unsteady behavior of the impinging jets is due to a feedback loop between the fluid and acoustic fields.In actual jet flow,the working gas may contain condensable gas such as steam or moist air.In these cases,the non-equilibrium condensation may occur at the region between nozzle exit and an object.The jet flow with non-equilibrium condensation may be quite different from that without condensation.Therefore,in this study,the effect of the non-equilibrium condensation of moist air on the axisymmetric under-expanded supersonic impinging jet on a vertical flat plate was investigated numerically. | ALAM Miah Md.Ashraful MATSUO Shigeru SETOGUCHI Toshiaki | 2010 | Journal of Thermal Science2010，19，1： | 1 |
| 2 | Effect of Non-Equilibrium Condensation of Moist Air on Unsteady Behaviour of Shock Waves around a Circular Arc Blade显示文摘在在机翼附近的接近音速的流动的不稳定的现象在扇子,压缩机片和蝴蝶阀门的流动地里被观察,并且这经常引起象 aeroacoustic 噪音那样的严重问题,颤动。在蒸汽在主要流动被包含的接近音速或超声的流动,流动的快速的扩大可以产生一个非平衡冷凝作用。然而,在机翼附近的接近音速的内部流动上的非平衡冷凝作用的效果还没令人满意地被澄清了。在现在的学习,圆形的弧片上的自我刺激的冲击波摆动上的潮湿的空气的非平衡冷凝作用的效果数字地被调查。结果证明在有非平衡冷凝作用的情况中,没有非平衡冷凝作用,流动摆动的频率变得比那些小。 | Shigeru MATSUO Kenbu TERAMOTO Miah MD.Ashraful ALAM Toshiaki SETOGUCHI Heuy Dong KIM Shen YU | 2007 | Journal of Thermal Science2007，16，2： | 1 |
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