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NONLINEAR EVOLUTION OF NON-AXISYMMETRICAL DYNAMICAL INSTABILITY IN A SLENDER ACCRETION TORUS
WANG, DY ; TAAM, RE ; WU, D
1994
Source PublicationSCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
ISSN1001-6511
Volume37Issue:1Pages:99-111
AbstractThe nonlinear evolution of non-axisymmetric dynamical instability has been interpreted here within the framework of soliton theory. The dispersion relation of a two-dimensional slender accretion torus in the long wavelength incompressible limit is similar to that of the linearized KdV equation. We argue that the 'planet-like' solutions of nonlinear dynamical instability in the numerical simulations should be the soliton solutions of KdV equation. We also find that the vorticity of accretion disk is a non-conservation quantity due to the variation of density and entropy in the nonlinear evolution of dynamical instability. It is the cause of the redistribution of angular momentum during the instability.
Subject Area天文和天体物理
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8520
Collection期刊(老文献)
Recommended Citation
GB/T 7714
WANG, DY,TAAM, RE,WU, D. NONLINEAR EVOLUTION OF NON-AXISYMMETRICAL DYNAMICAL INSTABILITY IN A SLENDER ACCRETION TORUS[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,1994,37(1):99-111.
APA WANG, DY,TAAM, RE,&WU, D.(1994).NONLINEAR EVOLUTION OF NON-AXISYMMETRICAL DYNAMICAL INSTABILITY IN A SLENDER ACCRETION TORUS.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,37(1),99-111.
MLA WANG, DY,et al."NONLINEAR EVOLUTION OF NON-AXISYMMETRICAL DYNAMICAL INSTABILITY IN A SLENDER ACCRETION TORUS".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 37.1(1994):99-111.
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