【摘要】：為對航空發(fā)動機(jī)蜂窩式軸心通風(fēng)器油氣分離效率進(jìn)行研究,建立考慮油氣雙向耦合的流場計(jì)算方法及油滴/壁面相互作用模型,在驗(yàn)證通風(fēng)阻力及油氣分離效率可靠性的基礎(chǔ)上,對不同轉(zhuǎn)速、通風(fēng)流量和環(huán)境溫度下蜂窩式軸心通風(fēng)器的油氣分離效果進(jìn)行計(jì)算和分析.結(jié)果表明:轉(zhuǎn)速的增加會使油氣分離效率得到提升,而通風(fēng)流量和環(huán)境溫度的增加則導(dǎo)致油氣分離效率的降低.蜂窩孔結(jié)構(gòu)的加入對通風(fēng)阻力影響不大,卻對通風(fēng)器的滑油分離過程起主要作用,計(jì)算表明其對滑油分離貢獻(xiàn)率在80%以上.
[Abstract]:In order to study the oil and gas separation efficiency of the honeycomb shaft ventilator of aero-engine, the flow field calculation method and the oil droplet / wall interaction model considering the bidirectional coupling of oil and gas are established. On the basis of verifying the reliability of ventilation resistance and oil and gas separation efficiency, the oil and gas separation effect of honeycomb axial ventilator under different rotational speed, ventilation flow rate and ambient temperature was calculated and analyzed. The results show that the oil and gas separation efficiency will be improved with the increase of rotational speed, while the increase of ventilation flow and ambient temperature will lead to the decrease of oil and gas separation efficiency. The addition of honeycomb structure has little effect on the ventilation resistance, but it plays a major role in the oil separation process of the ventilator. The calculation shows that the contribution rate of the honeycomb structure to the oil separation is more than 80%.
【作者單位】： 西北工業(yè)大學(xué)動力與能源學(xué)院;
【分類號】：V233

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1 鞠珊珊;蜂窩式通風(fēng)器流動和油氣分離數(shù)值模擬方法的研究[D];沈陽航空航天大學(xué);2013年

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本文編號：2397251