最终证明了谱元方法求解计算气动声学问题的可行性。
Finally the feasibility of spectral element methods for Computational Aeroacoustics is verified.
旋翼桨-涡干扰噪声问题是直升机气动声学领域的一个研究热点和难点。
The research on the rotor blade-vortex interaction (BVI) noise is a very important aspect and a very challenging subject in the rotorcraft aeroacoustics field.
研究了非等距网格下高阶精度有限差分方法用于气动声学问题的可行性。
A high order finite difference scheme is constructed based on non-uniform meshes for aero - (acoustics) applications.
采用计算气动声学方法研究了管道近音速区的声传播和声波与激波的相互作用问题。
A computational aeroacoustics approach is applied to studying sound propagation in subsonic and supersonic nozzle.
从气动声学理论出发，探讨了贯流式风机气动噪声机理及不等节距叶片频率调制降噪的机理。
Based on the theory of airacoutics, the mechanism of denoising of cross_flow fan and the modulation of unequal spaced blades is discussed.
本文介绍了气动声学数值计算的方法和有关的问题、边界条件的处理以及计算非线性声波的数值方法和进展。
In this paper, the numerical methods, issues and development for aeroacoustics, were described, including finite difference scheme, boundary conditions and nonlinear acoustics and shocks.
法国的杰出研究领域有：推进与燃料、复合材料、空气动力学、声学、嵌入电子与信息系统等。
Sectors in which French research excels include: propulsion and combustion, composite materials, aerodynamics, acoustics, embedded electronic and it systems.
用充填，气动噪声，脉冲枪和扩音器实验研究燃烧室的各种声学响应。
Different inspiring methods are used to experimentally study the acoustic characteristics of the small chamber.
文章主要综述了国内外对局部扇风机气动噪声的研究与控制方法，对孤立叶轮的声学模型及其噪声控制方法。
The paper summarizes mainly the research and control of pneumatic noise of local fan, the sonic model of isolated blade wheel and the control method of noise in home and foreign countries.
设计并建造了一种用于船用柴油机排气消声器声学和气动性能试验研究的台架。
A test bed for the performance study of Marine diesel engine exhaust silencers was designed and built.
设计并建造了一种用于船用柴油机排气消声器声学和气动性能试验研究的台架。
A test bed for the performance study of Marine diesel engine exhaust silencers was designed and built.
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