• 提出一个自适应线网格计算定常声速数值方法

    A numerical method of computing steady supersonic flow fields by using adaptive streamline grids.

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  • 连续近自由分子,计算分析声速稀薄效应

    Rarefaction effect on supersonic flow fields in the transition from near continuum to near free-molecule flow is analyzed numerically.

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  • 本文介绍操纵机翼非定常跨声速的有限差分计算方法

    A numerical method is presented for predicting unsteady transonic aerodynamic flow about aircraft wings with control surface.

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  • 实验结果表明混合过程损失两种声速密度比增大增加。

    The experimental results show that the higher the static temperature and the density ratio between two supersonic flow, the more the total pressure losses of flow during mixing.

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  • TVD格式目前数值研究激波主要特征之一声速高超声速场的先进算法之一。

    TVD scheme is one of the most advanced schemes for investigating supersonic and hypersonic complex flows in which shock wave is one of important properties up to date.

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  • 一种已知超声速或高超声速流生成气动构设计点乘波体构型的整个前缘产成附的激波

    A wave rider is a configuration designed such that the bow shock generated by the shape is perfectly attached along the leading edge at the design condition.

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  • 笔者自行设计研制了用于高超声速推进风洞测量带有水冷装置可移动式扫描总压

    A kind of scan pitot-pressure rake with water cooler was designed in IMCAS for the hypersonic propulsion wind tunnel flow measurement.

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  • 声速高超声速中,种很严重脉动压力环境激波边界层相互作用引起的激波振荡

    One of the more severe fluctuating pressure environments encountered in supersonic or hypersonic flows is the shock wave oscillation driven by interaction of a shock wave with boundary layer.

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  • 本文依据三元通用理论完成一个声速压气机转子三元迭代计算

    According to the "General Theory of Three-Dimensional flow in Turbomachines", the quasi-three dimensional calculation of the transonic flow field has been achieved for a compressor rotor.

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  • 作为平均迎角趋于特殊情况,本文数值结果声速线化的理论是一致的,高超声速情况与活塞理论一致。

    Numerical solutions agree with supersonic linearized potential flow theory as a special case when the mean angle of attack tends to zero and with piston theory in hypersonic case.

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  • 通过理论分析实验测量数值模拟研究高超声速粘性相互作用实验自由静压测量影响

    Hypersonic viscous interaction effects on measurement of free stream pressure in test section are studied through theoretical analysis, experiment measurement and numerical simulation.

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  • 采用C-H网格守恒型非定位势方程的时间精确近似因式分解差分法计算二维、三维的跨声速非定常位势

    The conservative full potential equation and C H grid are used to compute the unsteady transonic flows around airfoils and wings.

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  • 研究结果表明方法满足精细求解声速/高超声速复杂要求

    The results showed that the method meets the requirements of sophisticated simulation of supersonic/hypersonic flow.

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  • 声速进气道数值模拟结果数值模拟结果存在较明显差别说明进气道侧壁面层影响不容忽略;

    There is a difference between the numerical simulation results of two-dimensional and three-dimensional flow field in supersonic inlet, which shows the influence of boundary layer on the side wall.

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  • 利用CFD软件数值模拟高超声速空气球体场。

    The steady hypersonic flow of air over a sphere is studied numerically using CFD-FASTRAN softwares.

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  • 得到高速旋转工况下对应不同攻角旋转角速度临界工况时,声速进气道内外复杂系结构

    Complex wave structures of supersonic inlet at different Angle of attack and spinning velocity related to high speed spinning and critical status were achieved.

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  • 声速气动力采用面源计算,高超声速气动力采用修正牛顿理论计算。

    Panel Method was used for subsonic aerodynamic analysis, and the Modified Newtonian Impact Theory was used for hypersonic aerodynamic analysis.

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  • 采用结构网格二阶精度场分区求解技术,对固体火箭冲压发动机增弹丸声速进气道特性进行了深入研究

    By means of block structure grid and second-order zonal solver method, the research on supersonic inlet performance of solid rocket ramjet assisted range projectiles was carried out.

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  • 研究声速预混可燃温度以及当量比对声速燃烧结构点火火焰传播特性影响

    The effects of temperature and equivalence ratio of supersonic premixed combustible flow on the structure of supersonic combustion flow field, ignition and flame propagation were studied.

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  • 声速风洞研究了激励对于可压缩细长旋成体大迎角非对称性影响效果

    The effect of acoustic excitation on the flow asymmetry over a slender body in compressible flows was investigated in a transonic wind tunnel.

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  • 本文采用可压缩非定常N-S方程模拟带有上下的跨声速二维风洞超临界翼型场。

    Transonic tube wind tunnel flows over supercritical airfoils with slots on both upper and lower walls have been simulated by using compressible unsteady two dimensional Navier-Stokes equations.

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  • 采用纹影系统声速可燃中的火焰传播进行显示

    A schlieren system was used for flow visualization of the flame propagating in a supersonic, combustible flow.

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  • 针对各种温度压力下马赫数2.5场中超临界煤油声速燃烧性能进行了实验研究

    Characteristics of supersonic combustion by injecting supercritical kerosene fuel into a Mach 2.5 crossflow at various preheat temperatures and pressures were investigated experimentally.

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  • 本文提出了一个高超声速烧蚀钝体简化模型简化的空气化学模型。

    A simplified flow field model and simple air chemical model for the chemical nonequilibrium wakes of hypersonic non-ablating blunt-body are presented.

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  • 本文定性分析开式分离性状,声速的开式分离数值模拟

    The nature of an open separation has been analysed qualitatively and the numerical simulation has been made for the hypersonic flow with an open separation over the blunt cone at Angle of attack.

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  • 声速进气道性能优劣决定了补燃室场内压强空气进而影响冲压发动机的工作性能。

    The performance of supersonic inlet determines the pressure and the air flux in combustor, then affect the work of ramjet.

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  • 冲压增程弹用声速双锥进气道特性进行研究,在风洞试验中得到合理结构图谱及试验数据。

    Flow characteristic of supersonic bi-cone inlet of ramjet assisted range projectiles is studied, and reasonable flow structures are also achieved through the wind tunnel experiment.

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  • 采用数值分析方法分析了声速喷管无粘声速板的冲击场。

    Numerical analyses of the transonic nozzle inviscid flow and supersonic jet impingement on a jet TAB are presented.

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  • 采用低速重复压气机实验数据验证了本文所采用数值方法模拟声速压气机精度可靠性。

    The accuracy and realability of the numerical software used to simulate the flow field of subsonic compressor is verified by the experiment data of a certain low speed two stage repeated compressor.

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  • 采用低速重复压气机实验数据验证了本文所采用数值方法模拟声速压气机精度可靠性。

    The accuracy and realability of the numerical software used to simulate the flow field of subsonic compressor is verified by the experiment data of a certain low speed two stage repeated compressor.

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