摘要
ＳＢ－ＹＺＣＰ人工降雨模拟装置经５年研制、３年应用、３万个数据率定，计算确定了该装置特性的关系式：（１）喷射中心（Ｌ）～喷孔直径（Ｄ）～工作压强（Ｐ）的关系式；（２）降雨均匀系数（Ｋ）～Ｄ～面积（Ｓ）的关系式；（３）平均降雨强度（Ｉ）～Ｓ的关系式；Ｉ～Ｄ～Ｐ的关系式；（４）平均雨滴动能（Ｅ）～Ｄ～Ｐ的关系式；（５）雨滴中数直径（Ｄ５０）～Ｄ～Ｐ的关系式；（６）Ｅ～Ｄ的关系式。经模拟不同雨型、不同植被的水保效益试验，检验了机械性能、降雨特征及模拟效果。经检定认为：该装置性能稳定，观测数据精确可靠，自控部分运行灵敏、降雨特性与天然降雨特性别无它样，是我国目前较先进的野外移动降雨装置。
The development of the SBYZCP artificial simulating rainfall equipment went through five years, its application underwent three years, 3 000 data were measured, the following characteristic equations were established:(1)central length of rainfall (L)～spray head diameter(D)～intensity of pressure(P);(2)rainfall even coefficient(K)～D～area(S);(3)average rainfall intensity(I)～S;I～D～P;(4)average raindrop kinetic energy(E)～D～P;(5)raindrop middle diameter(D50)～D～P;(6)E～D.By simulating the different rainfall intensity,the test of soil and water conservation benefit in the different vegetation,the characteristic and the simulating effect for the rainulator were examined,the function is stable,the determined data are accurate and reliable,the artificial rainfall simulator is more advanced in our country at the moment.
