变特性长管道内水流冲击气团的刚性数学模型  

Rigid model of transient analysis for multiple-characteristic long pipelines with trapped air mass

作　　者：刘德有[1] 索丽生[1] 

机构地区：[1]河海大学,江苏南京210098

出　　处：《水动力学研究与进展（A辑）》2005年第1期44-49,共6页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(50179008);教育部高校博士点专项科研基金(20010294006)

摘　　要：导出了可模拟分析变特性长输水管道系统内有压水流冲击管道内滞留气团的瞬变流现象的实用刚性数学模型,并通过算例对比分析了该数学模型与现有针对单特性管道的几种简化刚性数学模型的差异,验证了该数学模型的有效性和合理性。Based on the rigid water column theory, a transient analysis model is developed to simulate the trapped air mass in the long pipeline system with multiple-characteristics. The difference from several simplified rigid models that are suitable for the single-characteristic pipeline is demonstrated and analyzed by the comparison of simulation results, and the utility and rationality of this model is verified as well.

关 键 词：管道系统 变特性 水锤 瞬变流 滞留气团 

分 类 号：TV134[水利工程—水力学及河流动力学]