loop flow中文什么意思

例句与用法

1. the principle, method and procedure for adjusting loop flow distribution by measured network data ( pressure and flow of feature node ) in the hydraulic calculation of city gas network are introduced, and the cause of errors occurring when using this method is analyzed
   摘要介绍了城市燃气管网水力计算中利用实测管网数据（特徵节点的压力和流量）调整环流量分配的原理、方法和步骤，分析了该方法出现偏差的原因。
2. to solve this problem, this paper re-numbers the nodes by using graph theory . when there are no loop flows, the power flow tracing results can be obtained without inverting the matrixes directly, so the efficiency is improved greatly . when there are loop flows, the power flow tracing problem can still be solved by using traditional methods
   为解决这一问题，本文将基于图论的节点编号方法引入到基于矩阵的追踪方法中，在无环流时，可以不用直接对矩阵进行求逆，从而加快了潮流跟踪的求解时间；在有环流时，仍可以通过传统的方法对潮流跟踪矩阵进行求逆。
3. to solve this problem, this paper re-numbers the nodes by using graph theory . when there are no loop flows, the power flow tracing results can be obtained without inverting the matrixes directly, so the efficiency is improved greatly . when there are loop flows, the power flow tracing problem can still be solved by using traditional methods
   为解决这一问题，本文将基于图论的节点编号方法引入到基于矩阵的追踪方法中，在无环流时，可以不用直接对矩阵进行求逆，从而加快了潮流跟踪的求解时间；在有环流时，仍可以通过传统的方法对潮流跟踪矩阵进行求逆。
4. when f is about fr, for curved pipes, the secondary flow appears eight vortexes for annular cross section and four for circular and four or six for elliptical; for helical pipe, the secondary flow appears as a loop flow for annular and circular cross section, and a saddle flow for elliptical cross section
   当f在fr左右时，对于弯管，环形截面上存在八个涡，圆截面上存在四个涡，椭圆截面上存在四个或六个涡；对于螺旋管，圆截面和环形截面上二次流表现为环流，椭圆截面上表现为鞍流。