UC知道英语翻译中文九
来源：百度知道 编辑：UC知道 时间：2024/06/17 08:38:33
curved diffuser is that its critically unfavourable geometry is
prone to generating pressure fluctuations in the flow, which
can then be transmitted to distance along the wind tunnel. Furthermore,
the addition of flow splitters inside the 90-curved diffuser
may also generate extraneous noise as a result of flow
impingement and boundary layer growth. The settling chamber
was therefore acoustically lined to attenuate the noise sources
located downstream of the valve. The theory of Kurze [19] was
used to predict the transmission loss for different combinations
of lined-splitter numbers and thicknesses. In the final design,
the acoustical liners consist of five parallel absorptive-line splitter
plates and two lined-sideliners. The splitter plates are
1800 mm in length and 110 mm in thickness; whereas the sideliners
are 40 mm in thickness. Super-elliptical leading
A further undesirable consequence of introducing the 90 - curved diffuser is that its critically unfavourable geometry is prone to generating pressure fluctuations in the flow, which can then be transmitted to distance along the wind tunnel. 引入90度曲线扩压器的进一步不希望有的结果是，它的受到批评的不利的几何形状，有在流动中产生压力波动的倾向，于是它可能沿风洞传递到远处。Furthermore, the addition of flow splitters inside the 90 -curved diffuser may also generate extraneous noise as a result of flow impingement and boundary layer growth. 而且，在90地曲线扩压器中加一个分流器，也可能因为流动冲击和边界层生长而产生外来的噪声。 The settling chamber was therefore acoustically lined to attenuate the noise sources located downstream of the valve. 因此沉降室从声学上衬里，以衰减位于阀门下游的噪声源。The theory of Kurze [19] was used to predict the transmission loss for different combinations of lined-splitter numbers and thicknesses.Kurze的理论【19】被用来预测不同衬里分流器数和厚度组合下的传递损耗。 In the final design, the acoustical liners consist of five parallel absorptive-line splitter plates and two lined-sideliners. 在最后设计中，声学衬里包括5块平行的吸收线分流板和2个衬里的