Yasui Kyuichi, Izu Noriya
National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan.
J Acoust Soc Am. 2020 Jan;147(1):267. doi: 10.1121/10.0000599.
In the original paper [Yasui and Izu, J. Acoust. Soc. Am. 141(6), 4398-4407 (2017)], the temperature gradient in Rott equations was assumed as zero by mistake as an author error, although temperature gradient was adequately taken into account in the numerical simulations of thermal conduction between a fluid parcel and the wall of a stack. In the present erratum, the results of the corrected numerical simulations are shown. The results show that the pV work done by a fluid parcel is larger in a wet stack compared to that in a dry stack not only in a traveling-wave thermoacoustic engine but also in a standing-wave thermoacoustic engine. The pV work is determined not only by the volume oscillation amplitude of a fluid parcel but also by the change in the mean volume of a fluid parcel.
在原论文[安井和伊豆，《美国声学学会杂志》141(6)，4398 - 4407(2017)]中，由于作者失误，罗特方程中的温度梯度被错误地假定为零，尽管在流体微团与叠层壁之间的热传导数值模拟中已充分考虑了温度梯度。在本勘误中，给出了修正后的数值模拟结果。结果表明，不仅在行波热声发动机中，而且在驻波热声发动机中，湿叠层中流体微团所做的pV功都比干叠层中的大。pV功不仅由流体微团的体积振荡幅度决定，还由流体微团平均体积的变化决定。
