Calculation of the shock wave parameters from the detonation of combustible gas mixtures of variable composition

B. E. Gel'fand; S. A. Gubin; V. N. Mikhalkin; V. A. Shargatov

doi:10.1007/bf01463858

Calculation of the shock wave parameters from the detonation of combustible gas mixtures of variable composition

Combustion Explosion and Shock Waves ◽

10.1007/bf01463858 ◽

1985 ◽

Vol 21 (3) ◽

pp. 355-360 ◽

Cited By ~ 2

Author(s):

B. E. Gel'fand ◽

S. A. Gubin ◽

V. N. Mikhalkin ◽

V. A. Shargatov

Keyword(s):

Shock Wave ◽

Gas Mixtures ◽

Variable Composition ◽

Combustible Gas ◽

Wave Parameters

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Experimental Investigation of Ignition of Combustible Gas Mixtures by Friction Sparks

Физика горения и взрыва ◽

10.15372/fgv20180302 ◽

2018 ◽

Keyword(s):

Experimental Investigation ◽

Gas Mixtures ◽

Combustible Gas

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Conditions needed for generation of type II radio emission in the interplanetary space

10.5194/egusphere-egu21-10997 ◽

2021 ◽

Author(s):

Immanuel Christopher Jebaraj ◽

Athanasios Kouloumvakos ◽

Jasmina Magdalenic ◽

Alexis Rouillard ◽

Vratislav Krupar ◽

...

Keyword(s):

Shock Wave ◽

Shock Waves ◽

Radio Emission ◽

Interplanetary Space ◽

Region Of Interest ◽

Type Ii ◽

Radio Observations ◽

Wave Parameters ◽

First Results ◽

Radio Signature

Eruptive events such as Coronal mass ejections (CMEs) and flares cangenerate shock waves. Tracking shock waves and predicting their arrival at Earth is a subject of numerous space weather studies. Ground-based radio observations allow us to locate shock waves in the low corona while space-based radio observations provide us opportunity to track shock waves in the inner heliosphere. We present a case study of CME/flare event, associated shock wave and its radio signature, i.e. type II radio burst.In order to analyze the shock wave parameters, we employed a robust paradigm. We reconstructed the shock wave in 3D using multi-viewpoint observations and modelled the evolution of its parameters using a 3D MHD background coronal model produced by the MAS (Magnetohydrodynamics Around a Sphere).To map regions on the shock wave surface, possibly associated with the electron acceleration, we combined 3D shock modelling results with the 3D source positions of the type II burst obtained using the radio triangulation technique. We localize the region of interest on the shock surface and examine the shock wave parameters to understand the relationship between the shock wave and the radio event. We analyzed the evolution of the upstream plasma characteristics and shock wave parameters during the full duration of the type II radio emission. First results indicate that shock wave geometry and its relationship with shock strength play an important role in the acceleration of electrons responsible for the generation of type II radio bursts.

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