摘要
仔细分析了在供热空调工程中水力网络系统数值计算的稳定域及导致病态的原因，提 出了有效地增大稳定域的处理方法．针对病态系统的求解，提出了使用方便，计算量小 的改进的ＭＫＰ法，并将其计算量与常规病态系统仿真所采用的隐式吉尔（Ｇｅａｒ）法进 行了定量的比较．通过应用实例，说明了所提出的处理方法行之有效，从而得出关于水 力网络非稳态流动过程数值计算问题的若干结论。
The region of stability and the cause of stiffness in numerical calculation of the dynamic process of flow in hydrodynamic network which usually appears in the field of HVAC engineering are analysed in detail. A method to extent the region of stability is suggested, and for calculating the stiff system a numerical algorithm called MMKP (Modified MKP) method is developed which spends much less computing time than the Gear method and furthermore, it is convenient to use. An application example is given which shows that the algorithm is effective.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1989年第5期72-78,共7页
Journal of Tsinghua University(Science and Technology)
关键词
供热
风网
水力网络
流动过程
hydrodynamic network, dynamic process of flow, stiff, numerical calculation, heating network, ventilating network
