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题名: ONE ZONE MODELING OF IRREGULAR VARIABILITY OF STELLAR CONVECTIVE ENVELOPE
作者: UNNO, W ; Xiong DaRun(熊大闰)
刊名: ASTROPHYSICS AND SPACE SCIENCE
出版日期: 1993
卷号: 210, 期号:1-2, 页码:77-81
学科分类: 天文和天体物理
英文摘要: One zone modeling of the irregular variability of red super-giants is intended with regard to the nonlinear coupling of finite amplitude pulsation with convection. The nonlocal mixing length is employed for the evaluation of the convective flux, the turbulent pressure and the turbulent power of temperature fluctuations. The radial pulsation and the Boussinesq convection are assumed for simplicity. The one zone is defined as the layer having the entropy maximum and the minimum at the bottom and at the top, respectively. The quasi-adiabatic approximation is consistent with this definition in fixing the zone to the same mass range. The spatial derivatives are evaluated under the assumption of homologous changes with the equilibrium homologous parameters. Then, a set of 6 simultaneous first order nonlinear ordinary differential equations are obtained as the one zone representation of the irregular variability of the convective envelope.
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11242
Appears in Collections:熊大闰_期刊论文

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UNNO, W; XIONG, DR.ONE ZONE MODELING OF IRREGULAR VARIABILITY OF STELLAR CONVECTIVE ENVELOPE,ASTROPHYSICS AND SPACE SCIENCE,1993,210(1-2 ):77-81
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