熱音響タコニス振動に対する臨界条件の数値的導出(波動(1),一般講演)

概要

論文の詳細を見る
This paper derives numerically marginal conditions for the onset of thermoacoustic Taconis oscillations in a helium-filled, quarter-wavelength tube. For step temperature distributions, the linear stability analysis is made by Rott (1969, 1973) and the marginal conditions derived are experimentally checked by Yazaki, Tominaga, and Narahara (1980). Although the boundary-layer theory was then regarded as being incapable of deriving the conditions, it has recently been revealed that the theory is valid in any situation for a short-time behavior after a disturbance is given. Therefore it is expected to be applicable to derivation of the marginal conditions. Using this theory, marginal conditions for smooth temperature distribution are sought and checked against the results by Rott.
日本流体力学会の論文
2010-09-09