论环境湍流对烟气抬升的作用

ON THE EFFECT OF AMBIENT TURBULENCE ON THE BUOYANT PLUME RISE

中文关键词:  环境湍流  烟气抬升  轨迹方程  终极抬升公式

英文关键词:Ambient turbulence  Buoyant plume rise  Trajectory equation  Final rise prediction formula

中文摘要:

      考虑环境湍流对烟气抬升具有增强烟气夹卷和促进烟气与环境空气间动、热量交换的双重作用,导出了中性层结条件下热烟气浮升的轨迹方程,并且无需对抬升的截止作任何假设,导得了理论的终极抬升公式。经与国内外烟气抬升实测资料对比,发现这些结果与实况基本一致。

英文摘要:

      Considering the effects of both enhancing entrainment and intensifying the exchanges of momentum and heat between plume and ambient air. the trajectory equation of buoyant plume under neutral conditions is derived, and without any hypotheses on the rise termination the final rise prediction formula is obtained theoretically. Compared to the field experiments, the final rise formula simulaes the observed final rise heights well.