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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2006.11
- 수록면
- 139 - 140 (2page)
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Fluid mixing occurs frequently in basic science and engineering applications. When a heavy fluid is supported by a lighter fluid in a gravitational field, the interface between the fluids is unstable under small perturbations. This phenomenon is known as the Rayleigh-Taylor instability [1]. The Rayleigh-Taylor instability plays important roles in many fields ranging from astrophysics to inertial confinement fusion. Since Rayleigh first considered this problem, it has received attentions in a wide range of contexts, but many aspects of dynamics of the instability are still uncertain.
Small perturbations at the interface grow into nonlinear structures in the form of bubbles and spikes. When the interface has random initial perturbations, different frequencies excite nonlinear interactions and the flow eventually develops into a turbulent mixing. At the random perturbations, bubbles of different radii propagate with different velocities and the leading bubbles grow in size at the expense of their neighboring bubbles. This phenomenon is known as a bubble interaction or bubble merger process [1,2].
A central issue in the turbulent mixing by the RT instabilit ... 전체 초록 보기
Small perturbations at the interface grow into nonlinear structures in the form of bubbles and spikes. When the interface has random initial perturbations, different frequencies excite nonlinear interactions and the flow eventually develops into a turbulent mixing. At the random perturbations, bubbles of different radii propagate with different velocities and the leading bubbles grow in size at the expense of their neighboring bubbles. This phenomenon is known as a bubble interaction or bubble merger process [1,2].
A central issue in the turbulent mixing by the RT instabilit ... 전체 초록 보기
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UCI(KEPA) : I410-ECN-0101-2009-410-014679439