Critical conditions for spherical flame initiation in mixtures with high Lewis numbers

被引：71

作者：

He, LT ^{[1
]}

机构：

[1] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA

来源：

COMBUSTION THEORY AND MODELLING | 2000年 / 4卷 / 02期

关键词：

D O I：

10.1088/1364-7830/4/2/305

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A theoretical and numerical study was conducted to clarify the physical mechanism controlling the flame initiation in mixtures with high Lewis numbers. The analysis was based on the effects of curvature and heat addition on flame structure. It was found that the conditions for the existence of a self-sustained expanding spherical dame determine the critical power and energy of the ignition source for successful initiation. A new criterion was established to predict both the critical power and energy.

引用

页码：159 / 172

页数：14

共 12 条

[1] SPHERICAL FLAME INITIATION - THEORY VERSUS EXPERIMENTS FOR LEAN PROPANE-AIR MIXTURES [J].

CHAMPION, M ;

DESHAIES, B ;

JOULIN, G ;

KINOSHITA, K .

COMBUSTION AND FLAME, 1986, 65 (03) :319-337

[2] On Quenching of Curved Flames [J].

Frankel, M. L. ;

Sivashinsky, G. I. .

COMBUSTION SCIENCE AND TECHNOLOGY, 1984, 40 (5-6) :257-268

[3]

HE L, 2000, UNPUB COMBUST FLAME

[4] PREMIXED HYDROGEN-OXYGEN FLAMES .1. FLAME STRUCTURE NEAR THE FLAMMABILITY LIMITS [J].

HE, LT ;

CLAVIN, P .

COMBUSTION AND FLAME, 1993, 93 (04) :391-407

[5] POINT-SOURCE INITIATION OF LEAN SPHERICAL FLAMES OF LIGHT REACTANTS - AN ASYMPTOTIC THEORY [J].

JOULIN, G .

COMBUSTION SCIENCE AND TECHNOLOGY, 1985, 43 (1-2) :99-113

[6] LINEAR-STABILITY ANALYSIS OF NON-ADIABATIC FLAMES - DIFFUSIONAL-THERMAL MODEL [J].

JOULIN, G ;

CLAVIN, P .

COMBUSTION AND FLAME, 1979, 35 (02) :139-153

[7] SPARK-IGNITION OF PROPANE AIR MIXTURES NEAR THE MINIMUM IGNITION ENERGY .1. AN EXPERIMENTAL-STUDY [J].

KO, Y ;

ANDERSON, RW ;

ARPACI, VS .

COMBUSTION AND FLAME, 1991, 83 (1-2) :75-87

[8] ASYMPTOTIC STRUCTURE OF COUNTERFLOW DIFFUSION FLAMES FOR LARGE ACTIVATION-ENERGIES [J].

LINAN, A .

ACTA ASTRONAUTICA, 1974, 1 (7-8) :1007-1039

[9]

OLSEN HL, 1953, 4TH S INT COMB, P144

[10]

SIVASHINSKY GI, 1973, ASTRONAUT ACTA, V18, P253

← 1 2 →