| 摘要: |
| 在推导船闸复杂分散输水系统非恒定流通用的数学模型基本方程的基础上，给出了其在各种输水系统中的应用形式，提出了基本方程求解的全隐差分格式。验证计算结果令人满意。通过数值计算，对出水支孔流量分配规律系统地研究表明，支孔边缘形状、支孔间距和廊道水流损失对支孔流量分配均有影响。 |
| 关键词: 复杂分散输水系统,支孔流量分配,船闸,数学模型 |
| DOI： |
| 分类号:U641 |
| 基金项目:国家自然科学基金，三峡开发总公司资助 |
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| A mathematical model of unsteady flow in complicated diverging filling and emptying system |
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Yang Chaodong, Xuan Guoxiang, Zhang Ruikai
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Nanjing Hydraulic Research Institute
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| Abstract: |
| The basic equations describing unsteady now in complicated manifold filling and emptying system are derived. The numerical method used to solve these equations is based on backward differences, and difference equations are in implicit form. Compared with the laboratory data, the solution by computer is in agreement with the observed. By means of numerical calculation, the distribution of flow in a lock chamber manifold is investigated.The results show that edge-shape of lock chamber ports, culvert length and head loss in culvert will all affect the distribution of port discharge. |
| Key words: complicated manifold filling and emptying system, distribution of port discharge, ship lock, mathematical model, |
