环量(circulation)是流体的速度沿着一条闭曲线的路径积分,通常用Γ来表示。 一个矢量沿一条封闭曲线积分,得到的结果叫环量。 环量控制由边界层控制发展而来,已成为一个专门课题。所谓环量控制,是指在后缘为圆弧形的翼型后部上表面开缝,气流从缝中喷出,挟带着上面的气流绕后缘流动,直到在后缘某点分离,由此在该翼型上形成环量,产生升力。
关键词:离心压缩机;燃料电池;环量 [gap=1563]Key words:centrifugal compressor;fuel eell;circulation
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铂环量 loopful
环量守恒运动 circulation preserving motion
空气循环量 CIRCULATING AIR
无环量势流 [流] acyclic potential motion ; [流] acyclic potential flow
制冷剂循环量 [制冷] circulating mass of refrigerant
液氧循环量 [机] liquid oxygen circulation
环境质量 environmental quality ; [环境] Environmental quality ; [环境] quality of environment ; TCEQ
变环量流型 variable circulation flow pattern
等环量设计 equal circulation design
The influence of outlet circulation of mixed-flow pump on the hydraulic performance of the outlet pipe was studied in this dissertation.
本文主要研究混流泵出口环量对泵出水管道水力特性的影响。
参考来源 - 混流泵出口环量及其对出水管道水力特性影响的研究Compound immobile impeller can eliminate the fluid circulation and change the velocity energy into pressure energy.
复合式静叶的作用是消除液体的环量,转换速度能为压力能。
参考来源 - 多相泵复合式静叶CFD模拟及流场分析·2,447,543篇论文数据,部分数据来源于NoteExpress
翼片的间隙导致环量的减小。
The space of wings results in decrease of circulation around each wing.
本文主要研究混流泵出口环量对泵出水管道水力特性的影响。
The influence of outlet circulation of mixed-flow pump on the hydraulic performance of the outlet pipe was studied in this dissertation.
给出了机翼—挂架组合体的速度场,环量分布和外挂表面的压强分布。
The speed fields and circulation distribution of wing-pylon combination, and the surface pressure distributions of the stores are given.
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