| Autor: |
Anikin, N. B., Tyaktev, A. A., Bugaenko, I. L., Piskunov, Yu. A., Balabin, S. I., Pavlenko, A. V. |
| Předmět: |
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| Zdroj: |
Atomic Energy; Jul2023, Vol. 134 Issue 3/4, p245-253, 9p |
| Abstrakt: |
The paper describes an experimental study of lean hydrogen-air flames in a 1490-mm-long closed vertical channel of a square 138×138 mm section behind a horizontal diaphragm with a diameter of 50 mm. Schlieren images of the flame in a homogeneous hydrogen-air mixture are given along with the pressure dynamics for the mixtures with 6, 8, and 16 vol.% of hydrogen. It is shown that shear instability behind the diaphragm leads to a local instability of the lateral surface of a lean hydrogen-air flame, which causes a short-wave perturbation that spreads over the flame surface and crumples it, thereby enhancing the combustion. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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