Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Stability and Angular Momentum of Accretion Disk with Viscosity-Collisions

점성-충돌 강착원반의 안정과 각운동량

  • Yoo, Kye-Wha (Department of Science Education, Ewha Womans University)
  • 유계화 (이화여자대학교 사범대학 과학교육과)
  • Published : 2001.10.31
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Abstract

The accretion disk with viscosity including collisions is examined. The diffusion process are also considered for a given mass distribution in the disk. Under such a circumstance the diffusion coefficient is simply proportional to 1/${\sqrt{r}}$ The disk rapidly transfers the turbulent angular momentum and the wave front toward the outer cold regions. Then an instability situation occurs in the disk.

점성과 충돌이 있는 강착원반의 확산 과정을 생각한다. 이때 확산계수는 단순하게 1/${\sqrt{r}}$로 비례한다. 강착원반의 난류에 의해서 각운동량은 외부로 수송된다. 파동도 또한 내부에서 외부로 전달되므로 강착원반은 불안정한 방향으로 진행된다.

Keywords

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