标题： 可压缩MHD湍流中的耗散 显示英文标题

标题： Dissipation in Compressible MHD Turbulence

摘要： 我们报告了对超音速可压缩磁流体动力学湍流的三维、高分辨率（高达512^3）数值研究。 我们考虑了强迫湍流和衰减湍流。 模型参数适用于银河系分子云中的条件。 我们发现，即使在强磁场存在的情况下，湍流的耗散时间也约为流动穿越时间或更小。 大约一半的耗散发生在激波中。 弱磁场被湍流增强并纠缠，而强磁场则保持良好有序。 显示英文摘要

摘要： We report results of a three dimensional, high resolution (up to 512^3) numerical investigation of supersonic compressible magnetohydrodynamic turbulence. We consider both forced and decaying turbulence. The model parameters are appropriate to conditions found in Galactic molecular clouds. We find that the dissipation time of turbulence is of order the flow crossing time or smaller, even in the presence of strong magnetic fields. About half the dissipation occurs in shocks. Weak magnetic fields are amplified and tangled by the turbulence, while strong fields remain well ordered.