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- Title
PARAMETRIC STUDY OF DROPLET BREAKUP BEHIND A SHOCK WAVE BY THE SHEET STRIPING MECHANISM.
- Authors
Poplavski, S. V.
- Abstract
The physical grounds of droplet breakup in a flow behind an incident shock wave in accordance with one of possible sheet stripping mechanisms (shedding of a liquid boundary layer) are considered. The analysis is performed on the basis of data of high-speed shadowgraphy of the droplet behavior behind the shock wave in the range of the Weber numbers We = 200–2200, measurements of the breakup induction period, and registration of the ablation character. The condition of instability of the liquid surface by the sheet stripping mechanism and the criterion of interface breakup are formulated with the use of parameters of a conjugate boundary layer in the fluid. On this basis and with due allowance for previous investigations, a dependence of the delay of droplet breakup by this mechanism on the fluid characteristics and flow parameters is derived.
- Subjects
SHOCK waves; BOUNDARY layer (Aerodynamics); LIQUID surfaces; FLUID flow; DROPLETS; STRIPES
- Publication
Journal of Applied Mechanics & Technical Physics, 2022, Vol 63, Issue 3, p408
- ISSN
0021-8944
- Publication type
Article
- DOI
10.1134/S0021894422030051