雷诺数对机翼尾缘噪声的影响(英文)
【文章页数】:11 页
【部分图文】:
图1翼型区域的计算网格(每5个网格)Fig.1Computationalgridsaroundtheairfoil(every5gridpoint)
heminimumgridspacingand+denotesanormalizationbasedonviscousunit.Non-slipandadiabaticconditionsareappliedonthewallsurface.Zero-gradientpressu....
图2时均压力系数与实验(Asada[23])对比结果(b)
airfoilqualitatively.Therefore,thetwo-dimensionalcomputationsareconsideredasanappropriateapproachwithinthecurrentrangeofReynoldsnumbers.(a)R....
图5一个典型周期内的相平均流场(R1A0)Fig.5Onetypicalloopofnoisegenerationusingphase-averagedflowfieldsfortheR1A0case
heacousticwavesinthefarfieldsareexactlyrelatedtothesuccessivepassageofvortices.FormoderateReynoldsnumbercases,itisdifficulttoconductphase-av....
图8翼型压力面上T-S波的局部增长率(R5A2和R1A4)(b)
2(c)R5A4Fig.7LocalgrowthratiosofT-SwavesonsuctionsideoftheairfoilforthecaseofR5A0,R5A2andR5A4图7翼型吸力面上T-S波的局部增长率(R5A0,R5A2和R5A4)(a)R5A2(b)R5A....
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