Characteristics of a coherent jet enshrouded in a supersonic fuel gas

作     者：Fei Zhao Rong Zhu Wen-rui Wang Fei Zhao;Rong Zhu;Wen-rui Wang

作者机构：Key Laboratory of Fluid Interaction with MaterialUniversity of Science and Technology BeijingBeijing 100083China National Center for Materials Service SafetyUniversity of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China School of Mechanical EngineerUniversity of Science and Technology BeijingBeijing 100083China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2020年第27卷第2期

页      面：173-180页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：financially supported by Fundamental Research Funds for the Central Universities (No. FRF-GF18-008B) 

主　　题：EAF steelmaking coherent jet supersonic shrouding fuel gas supersonic combustion field characteristics 

摘      要：Based on a current coherent jet,this study proposes a supersonic combustion(SC)coherent jet in which the main oxygen jet is surrounded by a supersonic fuel *** characteristics of the proposed coherent jet are analyzed using experimental methods and numerical simulations in the high-temperature environment of electric arc furnace(EAF)*** SC coherent jet achieved stable combustion in the EAF steelmaking *** simulated combustion temperature of the supersonic shrouding methane gas was 2930 K,slightly below the theoretical combustion temperature of methane–oxygen *** high speed and temperature of the supersonic flame effectively weakened the interaction between the main oxygen jet and the external ambient gas,inhibiting the radial expansion of the main oxygen jet and maintaining its high speed and low turbulence over a long *** features improved the impact capacity of the coherent jet and strengthened the stirring intensity in the EAF bath.