Simulation of the Instability of Gas Layer Flow Inside Fluid
Journal Title: Advances in Robotics & Mechanical Engineering - Year 2019, Vol 1, Issue 5
Abstract
The stability of a thin gas layer flow between two fluid layers moving in the same or opposite direction is modeled and simulated numerically. A linear stability is considered for the system using the non-stationary equation array, which consists of the two onedimensional non-stationary equations of a seventh and fourth order. The results of the numerical study showed that the thin gas layer between two liquid layers is unstable to a number of different perturbations of the flow parameters. Gas or vapor layer flow may occur in a number of different physical facilities and devices [1-3], e.g. in a pool with volatile coolant [4,5]. Also, as a stage of drop disintegration through the phase of a film flow [6], etc. In fact, the first two phenomena may occur together in real cases [4,5]. Such liquid - gas (vapor) interfaces are prone to different types of instability. The jet’s stability increases in infinite medium by increasing viscosities of jet and medium [7-9]. Instability of thin gas layer between two fluid layers was not reported in the literature yet.
Authors and Affiliations
Іvan V Kazachkov
Keywords
Related Articles
- EP ID EP582428
- DOI 10.32474/ARME.2019.01.000123
- Views 76
- Downloads 0
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