Ef K>0 L8r=1 Mar Stretch K Critical stretch LeF <1 one Stretch U1<U2<U3 LeF >1 SLO-LAEK Stretch 《燃烧学基础》6，层流预混火 管内传播火焰法 Mass flow controller fuel Quartz tube d1=U。-S 810 dt 一=u出 《燃烧学基础》6，层流预混火焰 陈正(a@pku.edu.cn)34
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球形传播火焰法 四8 .1896 R=R() P=P， 0 0.01 Constant-Pressure Method Constant-Volume Method 定压法 定容法 《燃烧学基础》6，层流预混火焰 陈正(z@pku.edu.cnm)35 球形传播火焰法（定容） Fig.1.Schematic diagram of the SV method system.The mbers in the figure are:1.pressure transducer:2.dynami strain amplifier:3.probe:4.electrodes:5.the mocouple 《燃烧学基础》6，层流预混火焰 陈正(a@pku.edu.cm)36
澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT ࡄ䍡ݏѭڤࣁ pressure transducer optical access high speed camera )UTYZGTZ<UR[SK3KZNUJ ࡄ؟ؓ )UTYZGTZ6XKYY[XK3KZNUJ ࡄԸؓ Time, t (S) Flame position, Rf (cm) 0 0.01 0.02 0.03 0 1 2 3 4 5 6 Rf =Rf (t) Time, t (S) Pressure, P (atm) 0 0.01 0.02 0.03 1 2 3 4 5 6 7 8 P=P(t) Rf=Rf(t) t 澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT ؟ؓࡄ䍡ݏѭڤࣁ