2020年3月
気泡流中の短波の弱非線形伝播に粘性と熱伝導性が及ぼす影響に関する理論的研究
混相流
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回数 : 80
- ,
- 巻
- 34
- 号
- 1
- 開始ページ
- 148
- 終了ページ
- 157
- 記述言語
- 日本語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3811/jjmf.2020.015
- 出版者・発行元
- 日本混相流学会
This study theoretically clarifies an effect of the liquid viscosity and the thermal conductivity on weakly nonlinear propagation of pressure waves in a liquid containing many spherical microbubbles. As in our preceding paper (Kamei et al., J. JSCE, Ser. A2, 75 (2019), 499) focusing on a long wave, by the use of the method of multiple scales, a nonlinear Schrödinger equation describing the long-range propagation of an envelope wave of short carrier wave is derived from the basic equations incorporating the liquid viscosity and the thermal conductivity. As a result, as in our preceding long wave case, the liquid viscosity and the thermal conductivity affect the dissipation effect, and a nonlinear effect in the adiabatic process decreases in comparison with the previous study (Kanagawa et al., J. Fluid Sci. Technol., 6 (2011), 838). On the other hand, unlike in our preceding long wave case, a dispersion effect in the adiabatic process decreases in comparison with the previous study.
- ID情報
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- DOI : 10.3811/jjmf.2020.015