Maximum dust-to-gas mass flux ratio in spherically expanding dusty-gas flow

IF 2.5 2区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Icarus Pub Date : 2024-11-03 DOI:10.1016/j.icarus.2024.116363

V.V. Zakharov , N.Y. Bykov , A. Rotundi , A.V. Rodionov , V. Della Corte , S.L. Ivanovski

引用次数: 0

Abstract

In this paper, we consider the motion of a solid spherical particle in a spherically expanding gas flow as an elementary model of the gas-dust atmosphere of a comet. Based on the results of numerical simulations we propose an approximation for the terminal dust velocity and an estimate of the maximum dust-to-gas mass flux ratio (in a dusty-gas flow with the dust size distribution given by a power law) which is consistent with assumption of negligible impact of dust on the gas flow (frequently used in simulations of dusty gas flows).

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球形膨胀尘气流中尘埃与气体的最大质量通量比

在本文中，我们把固体球形粒子在球形膨胀气体流中的运动视为彗星气尘大气的基本模型。根据数值模拟的结果，我们提出了尘埃末端速度的近似值，并估算了尘埃与气体的最大质量通量比（在尘埃大小分布由幂律给出的尘埃-气体流中），该近似值与尘埃对气体流的影响可忽略不计的假设（常用于模拟尘埃气体流）是一致的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Icarus 地学天文-天文与天体物理

CiteScore

6.30

自引率

18.80%

发文量

356

审稿时长

2-4 weeks

期刊介绍： Icarus is devoted to the publication of original contributions in the field of Solar System studies. Manuscripts reporting the results of new research - observational, experimental, or theoretical - concerning the astronomy, geology, meteorology, physics, chemistry, biology, and other scientific aspects of our Solar System or extrasolar systems are welcome. The journal generally does not publish papers devoted exclusively to the Sun, the Earth, celestial mechanics, meteoritics, or astrophysics. Icarus does not publish papers that provide "improved" versions of Bode''s law, or other numerical relations, without a sound physical basis. Icarus does not publish meeting announcements or general notices. Reviews, historical papers, and manuscripts describing spacecraft instrumentation may be considered, but only with prior approval of the editor. An entire issue of the journal is occasionally devoted to a single subject, usually arising from a conference on the same topic. The language of publication is English. American or British usage is accepted, but not a mixture of these.