【摘要】 从压力梯度的角度出发，对沿典型的绕流体后水平与竖直方向卷吸及其相互作用的机理第一次作了比较详尽的分析，并在对该绕流体后区域中传热传质机理探讨的基础上提出了燃烧劣质煤时使绕流体燃烧器发挥效能的必要条件。更多还原

【Abstract】 ksedon thepressure gradientbehind a bluff-body,the entrainment phenomenon andthe interaction between thefume in the horizontal direction and that in the vertical directionis studied.The heat and mass transfer in the recirculation region is discussed and the neces-sary condition for the profitable use of a bluff-body in low-grade coal combustiOn is suggest-ed.更多还原