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Flow Field and Effects of SF6 Released in Ionosphere

Chinese Journal of Space Science, ISSN: 0254-6124, Vol: 39, Issue: 5, Page: 623-628
2019
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Article Description

The initial velocity and mass flow rate of sulfur hexafluoride (SFg) released in the ionosphere are key factors for the release effects research. They are not involved in traditional simulation models. In order to realize high precision simulation, the flow field in the storage vessel during SF$ release is studied. According to the structural size of the SFe storage vessel, the geometric model is established, and the grid model uses structured grid and unstructured grid to discretize the computational area of the geometric model. Using the standard k-e model and SIMPLE algorithm in the professional software Fluent, the temperature, pressure, velocity of flow and mass flow rate in the storage vessel during SFe ionosphere release are simulated under different initial conditions, including initial temperature, pressure and filling mass. The flow field simulation results are taken as initial parameters in the three-dimensional refined model of SFg ionosphere release, and the refined effects of SFe ionosphere release are obtained.

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