Experimental evaluation of the acoustic properties of stacked-screen regenerators.
Experimental evaluation of the acoustic properties of stacked-screen regenerators.
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DOI：
10.1121/1.3056552
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发表时间：
2009-02
期刊：
影响因子：
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通讯作者：
Y. Ueda;Toshihito Kato;C. Kato
中科院分区：
文献类型：
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作者：
Y. Ueda;Toshihito Kato;C. Kato
描述了叠屏蓄热体波数和特性阻抗的实验评估。首先，根据在四个不同位置进行的压力测量来估计堆叠屏幕再生器的二乘二传递矩阵；然后，使用“基于毛细管”的理论评估蓄热器的波数和特性阻抗，该理论将堆叠屏幕蓄热器建模为具有均匀横截面的孔阵列。该评估适用于七种类型的叠屏再生器。实验结果表明，这些堆叠屏幕再生器可以建模为圆形横截面管阵列。此外，还提出了一个经验方程，用于估计构成模型堆叠屏幕再生器的管子的圆形横截面的半径。
The experimental evaluation of the wave number and characteristic impedance of stacked-screen regenerators is described. First, a two-by-two transfer matrix of a stacked-screen regenerator was estimated from pressure measurements performed at four different positions; then, the wave number and characteristic impedance of the regenerator were evaluated using a "capillary-tube-based" theory that models a stacked-screen regenerator as an array of pores having a uniform cross section. The evaluation was applied to seven types of stacked-screen regenerators. The experimental results show that these stacked-screen regenerators can be modeled as arrays of circular-cross-section tubes. Moreover, an empirical equation used to estimate the radius of the circular cross section of the tubes comprising the modeled stacked-screen regenerators was addressed.