HERBIG-HARO射流在剪切层中的折射

IF 1.1 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Revista Mexicana de Astronomia y Astrofisica Pub Date : 2023-04-01 DOI:10.22201/ia.01851101p.2023.59.01.07
A. Raga, A. Castellanos-Ramírez, J. Cantó
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引用次数: 0

摘要

研究了赫比格-哈罗(HH)射流穿过滑动面进入侧流环境区域的问题。与流环境的相互作用产生斜激波,使喷射光束偏转。对于这种冲击,一个简单的解析模型给出了射流偏转作为入射角和环境与射流闸板压力比的函数。我们发现,在较高的环境冲击压力的情况下,对于足够高的入射角,射流失速并且不会大量渗透到流环境中。我们提出了三维气体动力学模拟说明射流偏转和失速制度。讨论了HH射流在传播过程中出现突然偏转的可能应用。
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REFRACTION OF A HERBIG-HARO JET TRAVELLING THROUGH A SHEAR LAYER
We study the problem of a radiative Herbig-Haro (HH) jet which travels through a slip surface into a region of side-streaming environment. The interaction with the streaming environment produces an oblique shock that deflects the jet beam. A simple, analytic model for this shock gives the jet deflection as a function of the incidence angle and the environment-to-jet ram pressure ratio. We find that in the case of higher environmental ram pressure, for a high enough incidence angle, the jet stalls and does not penetrate substantially into the streaming environment. We present 3D gas dynamic simulations illustrating the jet deflection and stalling regimes. Possible applications to HH jets showing sudden deflections in their propagation are discussed.
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来源期刊
Revista Mexicana de Astronomia y Astrofisica
Revista Mexicana de Astronomia y Astrofisica 地学天文-天文与天体物理
CiteScore
1.30
自引率
10.00%
发文量
14
审稿时长
>12 weeks
期刊介绍: The Revista Mexicana de Astronomía y Astrofísica, founded in 1974, publishes original research papers in all branches of astronomy, astrophysics and closely related fields. Two numbers per year are issued and are distributed free of charge to all institutions engaged in the fields covered by the RMxAA.
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