서지주요정보
Dayside magnetopause에서 나타나는 비대칭적인 magnetic reconnection에 대한 3차원 MHD 시뮬레이션 = Three-dimensional MHD simulations of the asymmetric time-dependent magnetic reconnection at the dayside magnetopause
서명 / 저자 Dayside magnetopause에서 나타나는 비대칭적인 magnetic reconnection에 대한 3차원 MHD 시뮬레이션 = Three-dimensional MHD simulations of the asymmetric time-dependent magnetic reconnection at the dayside magnetopause / 황경주.
저자명 황경주 ; Hwang, Kyoung-Joo
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8010371

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 99032

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Using a three-dimensional compressible MHD code, I have numerically studied the asymmetric magnetic reconnection at the dayside magnetopause where (1) the magnetic field is higher on magnetospheric side, and where (2) the density is higher on magnetosheath side. Reconnection is caused by applying a localized resistivity in the center of the current sheet, which is dependent on the y- and z-component to give three-dimensional effect. Sudden onset of reconnection causes the development of a bulge in the current layer. But at xy-plane, its shape and velocity are different from the two-dimensional model. Even without any initial z-component of magnetic field, the field lines are found to be tilted. When the bulge has moved far enough from the reconnection site, steady reconnection proceeds at the X-line. Quasi-steady state of the reconnection has elongated field lines along the magnetopause. Also the erosion effects are weak. At xy plane, discontinuities are similar to the two dimensional model, but the variation of z value has changed the discontinuity type. It is found that the greater heating happens on the magnetospheric side discontinuity in both cases.

서지기타정보

서지기타정보
청구기호 {MPH 99032
형태사항 iv, 65 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kyoung-Joo Hwang
지도교수의 한글표기 : 민경욱
지도교수의 영문표기 : Kyoung-Wook Min
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 64-65
주제 Dayside(비대칭적인) magnetic reconnection
3차원 시뮬레이션
Bulge 형태
불연속 경계면
가열(에너지 변환)
Dayside(asymmetic) magnetic reconnection
Three-dimensional simulations
Bulge shape
Discontinuities
Heating(energy conversion)
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