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Comparing the statistics of isothermal compressible turbulence in simulation : Single versus Double forcing
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  • Comparing the statistics of isothermal compressible turbulence in simulation : Single versus Double forcing
  • Comparing the statistics of isothermal compressible turbulence in simulation : Single versus Double forcing
저자명
유현주,조정연,Yoo. Hyun-Ju,Cho. Jung-Yeon
간행물명
천문학회보
권/호정보
2011년|36권 2호|pp.108-108 (1 pages)
발행정보
한국천문학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Turbulence is ubiquitous in astrophysical fluids such as the interstellar medium(ISM) and the intracluster medium(ICM). There are many driving mechanisms which can inject energy into the fluid in variety driving scales, But the plausible driving scale of ISM/ICM turbulence are yet unknown. Therefore, understanding different statistical properties between turbulence with single driving scale and turbulence with double driving scale is required. In this work, we performed 3-dimensional isothermal compressible, magnetohydrodynamic(MHD) turbulence simulations. We drive turbulence in the Fourier space in two ranges, 2<k<3(large scale) and 15<k<26(small scale). We injected different amount of energies by changing the amplitudes of forcing in these ranges. We present time evolution of kinetic and magnetic energy densities and spectra of density, kinetic and magnetic fields. We also examine density probability distribution function(PDF) and make statistical analysis.