渦輪機葉系 的英文怎麼說
中文拼音 [guōlúnjīyèxì]
渦輪機葉系
英文
turbine blading- 渦 : 渦名詞1. (漩渦) eddy; whirlpool; vortex 2. (酒窩) dimple
- 輪 : Ⅰ名1 (輪子) wheel 2 (像輪子的東西) wheel like object; ring; disc 3 (輪船) steamer; steamboa...
- 機 : machineengine
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 渦輪機 : aeroturbine
- 渦輪 : [機械工程] turbine; worm wheel渦輪泵 [航空] turbopump; roturbo; 渦輪發動機 turbine engine; 渦輪風...
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Numerical simulation of internal secondary vortex in skew - swept impellers
彎掠翼葉輪內流二次渦系的計算機數值模擬To meet the needs for wider surge margin of the turbofan engine, a new model was developed to predict the characteristics of the fan / high pressure compressor and turbine in this thesis. several ways, including, variable inlet guide vanes of the fan, variable guide vanes of the high pressure compressor, the variable inlet area ratio of the mixer and the nozzle areas, were presented to enlarge the surge margin of the turbofan engine. meanwhile, a method of combined variable geometries for optimizing controls of inlet guide vanes of the fan, guide vanes and the first two stators of high pressure compressor, area ratio of mixer and noz zle areas was established
為了滿足下一代作戰飛機對推進系統的性能和穩定性要求,本文建立了壓縮系統特性和渦輪特性的新模型,並分別採用改變渦扇發動機風扇進口導流葉片、壓氣機導流葉片和前兩級靜葉片、混合室進口處內、外涵面積比和尾噴管面積,研究了其對發動機性能和穩定性的影響,進而得出了渦扇發動機變幾何擴穩的方法,為發動機變幾何擴穩研究打下理論基礎。A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述,展現了新的先進設計體系在民用通風機上的成功運用,其研製特點是: ( 1 )在葉片氣動設計中為了降低葉根及葉尖區二次流損失,採用可控渦扭向規律設計,樣機實測的高性能驗證了這種方法的可行性和高效性; ( 2 )在設計方法中採用較精確的數值反驗算,獲取最優設計方案,大大提高設計的準確性和成功率,並縮短了設計試制周期; ( 3 )在設計過程中發展了計算機輔助三維葉片造型新方法,可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型,這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述,展現了新的先進設計體系在民用通風機上的成功運用,其研製特點是: ( 1 )在葉片氣動設計中為了降低葉根及葉尖區二次流損失,採用可控渦扭向規律設計,樣機實測的高性能驗證了這種方法的可行性和高效性; ( 2 )在設計方法中採用較精確的數值反驗算,獲取最優設計方案,大大提高設計的準確性和成功率,並縮短了設計試制周期; ( 3 )在設計過程中發展了計算機輔助三維葉片造型新方法,可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型,這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。Wind turbine generator systems - part 23 : full - scale structural testing of rotor blades
風力渦輪發電機系統.第23部分:轉式葉片全尺寸結構試驗In this thesis, the key technologies of turbine blade modeling cad system are studied based on the deep analysis of the turbine blade modeling. the following are listed works done on this topic : a joining method is given to create the smooth section profile curves of turbine blade
本文以航空發動機渦輪葉片為研究對象,重點研究了渦輪葉片造型cad系統的關鍵技術,完成了如下工作:本文研究了渦輪葉片的外型造型方法。Film cooling of the surface of a gas turbine blade was studied in a large - scale low - speed opening wind tunnel according to actual requirement of the design of aero - engine. the surface of a gas turbine blade was cooled by cylindrical holes in the experiment, with the hole number of fifteen in stator and eight in rotor
應航空發動機設計的要求,在大尺寸低速葉柵傳熱風洞中分別對發動機渦輪導向葉片和動葉表面的氣膜冷卻特性進行了研究,具體研究在不同氣膜孔出流時,在不同主流雷諾數和吹風比情況下葉片表面局部換熱系數的分佈規律。分享友人