平面火焰应用 Bumermm )c n 齐飞教授 陈正(z@pku.edu.cn)13 一维驻定预混火焰 Burner stabilized 1-D premixed flames Flame Hlat flame Cylindrical flame Spherical flame 《燃烧学基础》6，层流预混火焰 陈正(a@pku.edu.cm)14
澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT ࣐ڀ䍡ٴ 喀伎ᮉᦸ 澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT ▁ঢؓஓ䍡 Flat flame Cylindrical flame Spherical flame Burner stabilized 1-D premixed flames
本生灯火焰 Nompremixed lhcrmlbtstionpoducts Air R.Bunsen (1811-1899) Fuel-air premiure 德国化学家 ariallop Air 《燃烧学基础》6，层流预混火焰 陈正(a@pku.edu.cm15 本生灯火焰 (pUn)u=(pUn)b Pu Un.b Un.u Pb 1.b=.nT stu=Vn.M Un.u =Vul sin a Figure 2.4.Kinematic balance for a steady oblique flame 《燃烧学基础》6，层流预混火焰 陈证(z@pku.edu.cm)16
澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT 䍥䍡࣏ޯ R.Bunsen (1811-1899) ؞Ԗ֡ڳ 澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT 䍥䍡࣏ޯ 1mm
不同颜色的本生灯火焰 秀 fuel rich fuel lean oereteamepetoaeanybiomegepeaios8ne8e8ngheaetahygeh 《燃烧学基础》6，层流预混火焰 陈正(z@pku.edu.cn)17 开口和闭口本生灯火焰 closed closed open (a) (b) RR。 teo 油 he9aenec 《燃烧学基础》6，层流预混火焰 陈正(a@pku.edu.cm)18
澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT 䍥䍡࣏ޯࣩЈբச৸ Different flame types of a Bunsen burner depend on oxygen supply. On the left a rich fuel with no premixed oxygen produces a yellow sooty diffusion flame; on the right a lean fully oxygen premixed flame produces no soot and the flame color is produced by molecular radicals, especially CH and C2 band emission. The purple color is an artifact of the photographic process. fuel rich fuel lean 澦䏝ׁक澧 ͧࡗقஓ䍡 ୟࠔ I`&VQ[KJ[IT 䍥䍡࣏ޯՌՌոڏ open closed closed open