The spacing of reflections is of more doubtful reliability . 反射波系的间隔不是很可靠的。
The second is the sequence of the reflections and their spacing . 第二个是这个反射波系及其间隔。
The distinct flowfield structures with shock waves and vortices had been obtained 获得了流场清晰的波系结构,以及弹体表面的压力分布。
Abstract : a 3d numerical solution of transonic turbulent flowfield inside a compressor rotor is analyzed with a consideration of blade tip clearance 文摘:借助于考虑叶片顶部间隙的压气机转子内跨音速湍流流场的三维数值解,得到了该转子流场中的复杂涡系与波系结构。
In the result with lateral jets , the structure of jets , the pressure of projectile surface and the aerodynamics characteristics are all in steady periodical fluctuation 弹丸侧喷流场干扰波系的空间结构、弹体表面压力和各种空气动力参数均表现为稳定的周期性波动。
Complex wave structures of supersonic inlet at critical status are achieved by numerical simulation , and analysis on flow structure characteristic and shock wave structure is made 得到了临界工况下超声速进气道内外粘性流场复杂的波系结构,分析了流场结构特性和激波波系结构。
Collect the original data , use the linear dimension wavelet bag ( symlets wavelet ) in the wavelet function toolbox of matlab to give the original data eliminating noise treatment ; 2 采集原始数据,运用matlab小波函数工具箱中的一维小波( symlets小波系)分析对原始数据进行小波消噪处理; 2
To analysis combustor structure ’ s contribution to fluxion and combustion explicitly , it is necessary to study the impaction of wave system and fire temperature on chemical reaction and heat release ’ s procedure 为了细致分析燃烧室结构和流动进口参数对超燃的作用关系,必须细化研究超音速流场的波系结构和燃气温度对化学反应放热过程的影响。
Wave systems are analyzed from predicted flow parameters . combustion state is evaluated from the distribution of chemical component density . therefore , theoretical explanation is afforded to improve and optimize chamber frame 采用预测的流动参数分布云图分析了波系结构,从化学组分的浓度分布判断燃烧状况的好坏,从而为改善优化燃烧室结构提供理论依据。
The flow field that results from the interaction of lateral jets injection into supersonic flow over projectile has complicated shocks wave patterns , which include regions of shocks and expand waves , and the lateral jet interaction also effects base flow of projectile 弹丸侧喷流与绕流的相互干扰形成了包含喷口前激波、再附激波以及沿喷流边界发展的膨胀波等复杂的波系结构,并延伸影响到弹底部流动。