Flame stabilization and blowoff over a single droplet

Lung Weei Huang, Chiun-Hsun Chen

研究成果: Article

7 引文 斯高帕斯(Scopus)

摘要

The burning behavior of a liquid fuel droplet under forced convection has been investigated numerically. The normalized governing system makes up the complete Navier-Stokes momentum, energy, species, and continuity equations in r-z coordinates with a one-step overall chemical reaction and finite-rale global kinetics. The evaporation process obeys the Clausius-Clapeyron law. The effects of incoming velocity (ua) and droplet diameter (d) are investigated separately. The envelope flame exists when free stream velocity is law. When u„ increases gradually, a critical velocity can be reached, at which the flame suddenly converts into a wake flame. No side flame is found. The envelope flames are retained throughout the decrement of the droplet diameter under the tow-speed flow regime. The d2 law is found to still hold in such an environment.

原文English
頁(從 - 到)53-71
頁數19
期刊Numerical Heat Transfer; Part A: Applications
27
發行號1
DOIs
出版狀態Published - 1 一月 1995

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