대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제19권12호
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- Pages.3352-3359
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- 1995
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- 1225-5963(pISSN)
DOI QR Code
공기/연료분무 혼합기의 점화 및 화염전파 해석
Numerical Analysis of Ignition and Flame Propagation in the Air/Fuel Spray Mixture
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- Kim, Sung-Jun
- 발행 : 1995.12.01
초록
An Eulerian-Lagrangian method is employed to simulate the ignition process and the flame propagation through the air/fuel spray mixture in a closed constant-volume combustor. The spray mixture is ignited by providing a hot wall at the end of the combustor or by firing the electric spark. The investigated parameters involve the initial droplet size, overall equivalence ratio, initial fuel vapor concentration, distance between the hot wall and the nearest droplet, and the ignition energy. Numerical results clearly show the existence of the optimum spray condition for minimizing the ignition energy and the ignition delay time as well as the critical dependence of ignition upon the distance of the heat source to the nearest droplet.
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