화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2003년 가을 (10/24 ~ 10/25, 한양대학교)
권호 9권 2호, p.2612
발표분야 이동현상
제목 Mixed convection in porous media
초록 Many studies have been done in convection of porous media since the introduction of Horton-Rogers-Lapwood convection. Applying horizontal throughflow to porous medium heated from below, the mixed convection sets in. Also, the flow transition from the time-dependent oscillating transverse rolls to the longitudinal ones occurs, as the velocity increases. There are two kinds of driving forces, one is a horizontal pressure gradient and other is a buoyancy force. However, it is usually difficult to observe this phenomena due to its structural complexity. Therefore, in order to reproduce this physical phenomenon, the direct three-dimensional numerical simulation is applied. In addition, the related stability condition, i.e., the absolute and convetive instabilities, is examined by using the amplitude equation known as Ginzburg-Landau equation
저자 정태준, 최창균
소속 서울대
키워드 mixed convection; porous media; Ginzburg-Landau equation; 3-D numerical simulation
E-Mail benard@netian.com
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