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空氣動力學(xué)詞匯 Aerodynamics Vocabulary

時間:2011-03-27 20:02來源:藍天飛行翻譯 作者:航空 點擊:


tip vortex   梢渦
radial components of flow  流動的徑向分量
over-predict  過大預(yù)示
under-predict  過小預(yù)示 
cruise speed   巡航速度
limitation  局限(性)
thrust  推力
torque   矩
subdivision   n. 再分,細分
subdivide     v. 再分,細分
(A propeller blade can be subdivided as shown into a discrete number of sections.)
propeller blade  螺旋槳葉片
inflow factors  入流參數(shù)(因子)
complexity  復(fù)雜性 
arise 出現(xiàn)
roughly equal to  粗略等于
slipstream  滑流
swirling nature 旋流特性
axial and circumferential directions  軸向和周向方向
unsteady effects due to the propeller's rotation  螺旋槳旋轉(zhuǎn)引起的非定常效應(yīng)
momentum flow rate  動量流量
in conjunction with   和…一起[共同,會合],連同…一起
final form(s) of  最終形式
nonlinear system of equations   非線性方程組
unknown variables   未知變量
iterative solution  迭代解(法)
solution procedure  求解步驟
have converged to within a specified tolerance  收斂到一個指定的容限范圍內(nèi)
It should be noted that  應(yīng)該注意的是
convergence enhancing technique(s)  收斂加強技術(shù)
Crank-Nicholson under-relaxation  ***欠松弛
propeller thrust and torque coefficients and efficiency 螺旋槳推力和矩系數(shù)及效率
gas turbine ideal cycle analysis   然氣渦輪理想循環(huán)分析
behaviour of a gas turbine engine  燃氣渦輪發(fā)動機性能
ideal Brayton cycle    理想Brayton循環(huán)
ideal intake   理想進氣道
isentropic compression   等熵壓縮
constant pressure combustion   等壓燃燒
isentropic expansion through a turbine and nozzle  通過渦輪和噴管的等熵膨脹
entropy  n. 熵
combustion chamber pressure  燃燒室壓強
burner  燃燒室
compressor 壓縮機
turbine  渦輪
exhaust nozzle  排氣噴管
ambient pressure  周圍環(huán)境壓強
 

 
 
bypass and core gas streams  旁路和核心流
turbo-fan engine  渦扇發(fā)動機 
flight Mach number   飛行馬赫數(shù)
engine conditions/geometry  發(fā)動機條件/幾何形狀
compressor pressure ratio  (CPR)    壓縮機壓力比
fan pressure ratio   (FPR)風(fēng)扇壓力比
bypass ratio   (內(nèi)外)涵道比,流量比
fuel-air ratio   燃料-空氣比
fuel consumption   燃料消耗
medium ['mi:di.m]  n. 介質(zhì),媒體  a. 中間的,中等的
intermediate [int. 'mi:dj.t]  a. 中間的,居中的,中級的  n. 中間物,仲裁者  v. 調(diào)解,介入
(Example sentences:  Turbofans in civil aircraft are generally divided intro three classifications, based on by-pass ratio: low bypass (1:1), medium bypass (2 or 3:1), and high bypass (4:1 or greater). In a low by-pass engine, the fan and compressor section utilize approximately the same mass airflow, but the fan discharge will generally be slighter greater than that of the compressor. A medium, or intermediate, by-pass engine has an airflow by-pass ratio of between 2:1 and 3:1, and has thrust ratio that is approximately the same as its by-pass ratio.) 

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