平流层重力占优气溶胶粒子的耦合碰并

研究大气平流层中的重力作用占优的气溶胶粒子之间的耦合碰并问题.平流层由于空气稀薄,必须引入高Knudsen数下分子体系介质近似,对于重力占优的气溶胶粒子,采用高Qij下的处理方法,在新的对分布方程的基础上,求得重力作用占优的气溶胶粒子的对分布函数的解析解.结果表明,对于重力占优的气溶胶粒子,平流层中碰并率要大于对流层中的碰并率.

Coupled Coagulation of Aerosols in the Stratosphere when Gravity Motion is Dominant

Coupled coagulation of aerosol particles in the stratosphere is carried out when gravity motion is dominant. As the atmosphere is dilute in the stratosphere, the molecular system approximation at large Knudsen number must be used. When gravity motion is dominant, the analytic solutions of the new pair-distribution equation are obtained by the method at high Q ij number. The results show that there is larger coagulation rate of the aerosol particles in the stratosphere than in the troposphere.