倾斜侧吹粉气流在熔池中射流轨迹的研究

Study on Jet Trajectory of Tilting Side-Blown Particle-Gas Flow in a Bath

根据动量定理和卷吸理论，建立了倾斜侧吹粉气流在熔池中的流轨迹的数学模型．结果表明，射流垂直穿透深度随弗劳德数或喷嘴向下倾角的增加而增大，但随密度比的增加而减少．

Based on the law of momentum and theory of entrainment,a mathematical model is established describing the jet trajectory of a particle-gas flow that is injected into bath on a slant. The results show thatthe vertical penetration depth increases with Froude Number or the tilting down angle of nozzle,but decreaseswith the increasing density ratio.