【摘要】 基于对流云云中催化剂扩散理论建立了一个适用对流云的云中点源催化剂扩散模拟系统,介绍了该系统的设计思想和应用情况。讨论了催化剂扩散与扩散时间、风速、湍流系数、垂直速度等因素的关系,得到以下结论:对流云中催化剂的扩散速度较快,几分钟后就能扩散到一个相对稳定的范围;风速和湍流系数越大水平扩散范围越大;在垂直方向上催化剂扩散主要集中在爆炸层高度之上附近的地方。这些研究结果可为对流云的增雨作业方案的确定提供科学依据,同时对增雨效果的评估也有意义。更多还原

【Abstract】 A diffusion simulating system of point-source catalysts in convective clouds is established based on the theory of catalyst diffusion in convective clouds,and the system design and its application are described.The relationship of catalyst diffusion to the time,wind speed,turbulence coefficient,and vertical speed is discussed.The results indicate that in convective clouds the catalysts diffuse relatively quickly and the diffusion speed can reach a steady extension after several minutes;the larger the wind speed and turbulence coefficient,the wider the diffused area can be;the catalyst diffusion is mainly concentrated around the explosive height.The conclusion could be useful for artificial precipitation enhancement in convective clouds and the evaluation of precipitation enhancement effectiveness.更多还原