硅酸盐学报2016，Vol.44Issue(5)：686-692,7.DOI:10.14062/j.issn.0454-5648.2016.05.11
三管燃烧器在生长室内燃烧特性的数值模拟
Simulation of Combustion Characteristics of Three-tube Burner in Growth Chamber
摘要
Abstract
Combustion characteristics of three-tube burner in growth chamber for the preparation of single crystal by a flame fusion method were investigated. The effect of nozzle structure on the combustion characteristics was analyzed. The results show that hydrogen flowed out from the nozzle diffuses with inner and outer oxygen, and two flames occur in the center and near the wall of growth chamber. The blowing depth of hydrogen is closed to outer oxygen, and the combustion reaction of hydrogen and oxygen is complete due to the significant mutual diffusion. The oxidizing atmosphere appears mainly by inner oxygen in growth chamber. The pressure of the molten cap of crystal is mainly derived from the central oxygen flow, and the maximal pressure of center and edge of molten cap is compressive and tensile. The inner oxygen aperture has an effect on the surface temperature and pressure of the molten cap of crystal but the outer oxygen diameter has a slight effect on the surface temperature and pressure of the molten cap of crystal. The diameter of hydrogen ring has an effect on the temperature of molten cap, but has a slight effect on the pressure.关键词
焰熔法/生长室/燃烧特性/数值模拟Key words
flame fusion method/growth chamber/combustion characteristics/numerical simulation分类
数理科学引用本文复制引用
刘旭东,毕孝国,唐坚,牛微,孙旭东..三管燃烧器在生长室内燃烧特性的数值模拟[J].硅酸盐学报,2016,44(5):686-692,7.基金项目
国家自然科学基金资助项目(No.51472047)。 （No.51472047）
