發(fā)布時間：2018-03-04 12:35

  本文選題：核心機驅(qū)動風(fēng)扇級　切入點：靜子　出處：《機械設(shè)計與制造》2016年04期 　論文類型：期刊論文

【摘要】：針對核心機驅(qū)動風(fēng)扇級氣動設(shè)計問題,采用定常數(shù)值模擬方法,對某核心機驅(qū)動風(fēng)扇級進(jìn)行建模,分別采用直葉片靜子和彎曲葉片靜子在級環(huán)境中進(jìn)行三維仿真,對比分析了單外涵模式和雙外涵模式下分別采用直葉片靜子和彎曲葉片靜子的氣動參數(shù)和流場,并揭示了不同模式下靜子的氣動參數(shù)特點,結(jié)果表明,正彎曲葉片適用于核心機驅(qū)動風(fēng)扇級,其能夠改變靜子載荷的徑向分布,削弱根部的氣流分離,減少了氣動損失,提高了效率,且對兩種工作模式均有效;單外涵模式靜子宜采用偏負(fù)攻角設(shè)計。
[Abstract]:Aiming at the aerodynamic design problem of the fan stage driven by the core engine, a steady numerical simulation method is used to model the fan stage driven by a certain core machine, and the stator of the straight blade and the stator of the curved blade are used to carry out the three-dimensional simulation in the stage environment, respectively. The aerodynamic parameters and flow field of stator with straight blade and curved blade in single culvert mode and double culvert mode are compared and analyzed, and the characteristics of aerodynamic parameters in different modes are revealed. The positive bending blade is suitable for driving fan stage of the core machine. It can change the radial distribution of the static load, weaken the air flow separation at the root, reduce the aerodynamic loss, improve the efficiency, and be effective for both working modes. The single external culvert model should be designed with partial negative angle of attack.
【作者單位】： 中國民用航空飛行學(xué)院航空工程學(xué)院;
【基金】：國家自然科學(xué)基金項目(51306201) 中國民航飛行學(xué)院青年基金項目(Q2014-037)
【分類號】：V233
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本文編號：1565678