旋渦的干擾 的英文怎麼說
中文拼音 [xuánguōdegānrǎo]
旋渦的干擾
英文
vortex interference- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 渦 : 渦名詞1. (漩渦) eddy; whirlpool; vortex 2. (酒窩) dimple
- 的 : 4次方是 The fourth power of 2 is direction
- 干 : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
- 擾 : Ⅰ動詞1 (擾亂; 攪擾) harass; trouble 2 (客套話 因受人款待而表示客氣) trespass on sb s hospital...
- 旋渦 : vortex (pl vortices; vortexes); whirlpool; vemous; eddy; vorticit; backset; swirl; [地質學] nuc...
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The research on the rotor blade - vortex interaction ( bvi ) noise is a very important aspect and a very challenging subject in the rotorcraft aeroacoustics field
旋翼槳-渦干擾噪聲問題是直升機氣動聲學領域的一個研究熱點和難點。In chapter 2, a simplified analytical model is presented for the analysis of the bvi mechanism, adopting the beddoes " prescribed wake model. by this model, the azimuthal location and miss - distance of the bvi and the radiation directivity of the bvi noise are calculated and discussed, and some conclusions are obtained
在第二章,使用beddoes預定尾跡模型,建立了一個用於旋翼槳-渦干擾特性機理分析的簡化數學模型,分別對旋翼槳-渦干擾位置、槳-渦干擾距離和聲輻射方向性等進行了計算和分析,得出了有意義的結果。In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced
研製出比傳統單鈍體渦街流量計流量下限降低約50的新型雙鈍體渦街流量計;揭示出脈動流中旋進旋渦流量計流體振動特性,並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場脈動對旋進旋渦流量計的干擾的方法。Finally, the experiments on the rotor bvi noise are conducted both in an aeroacoustic laboratory and at outdoors, and the noise characteristics at different locations are measured on different blade - tip mach numbers, collective pitch angles and rotor configurations. based on the experimental results, some new conclusions are presented
本文第七章分別在「消聲室」和外場進行了模型旋翼的槳-渦干擾噪聲實驗,對不同馬赫數、不同槳距角以及不同旋翼布置情況下的不同測點進行了噪聲測量,得出了一些新的結論。Based on this discovery, a novel swirlmeter with a strong anti - jamming performance was developed
基於這一結果,研製出抗干擾性能很強的新型旋渦進動流量計。In the third chapter, the method and choosing principle of the test system component at first were brought out. the component of test device was introduced. and then, the characteristics, such as strouhal number, vortex street strength, vortex street stability and pressure drop coeffi
縱觀全文,本文成功地將cfd技術和實驗流體力學方法應用於新型雙鈍體渦街流量計的研究,並對旋進旋渦流量計的流體振動特性和抗干擾方法進行系統研究,提出了旋進旋渦流量計抗干擾設計的新方法。In chapter 6, a new idea for simulating rotor bvi noise experiment is presented using a scissors rotor configuration with the vertical separation between a pair of rotors, based upon the fact that the important aerodynamic feature of this scissors rotor configuration is its close blade - vortex encounter. and the models and facilities designed for the bvi noise experiment are given
在第六章,基於槳-渦靠近通過是非共面剪刀式布置旋翼流場的一個重要特徵,提出了使用剪刀式布置旋翼來模擬旋翼槳-渦干擾噪聲實驗的新構想,並設計了用於噪聲實驗的模型。5. the dynamic system of the liquid - solid coupled satellite that is filled with an ideal liquid has been researched. the external disturbances and the liquid viscosity have been concerned in this study
5 、針對帶有橢球腔全充液的衛星,建立了液體做均勻渦旋運動的充液衛星動力學模型,分析了外界干擾和液體阻尼對衛星姿態穩定的影響。分享友人