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关注：1
2013-05-23 12:21
求翻译：For internal flows, the turbulence intensity at the fan, vent, or free opening is dependent on the upstream history of the flow. If the flow upstream is under-developed and undisturbed, you can use a low turbulence intensity. If the flow is fully developed, the turbulence intensity may be as high as a few percent. The 是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
For internal flows, the turbulence intensity at the fan, vent, or free opening is dependent on the upstream history of the flow. If the flow upstream is under-developed and undisturbed, you can use a low turbulence intensity. If the flow is fully developed, the turbulence intensity may be as high as a few percent. The
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2013-05-23 12:21:38
对于内部流动，在风扇的紊流强度，通风口，或自由开口依赖于流动的上游历史。
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2013-05-23 12:23:18
正在翻译，请等待...
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2013-05-23 12:24:58
正在翻译，请等待...
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2013-05-23 12:26:38
对于内部流动，风扇、 发泄或免费开放的湍流强度是依赖上游流的历史。如果对上游流是经济欠发达、 不受干扰，你可以使用低的湍流强度。如果流被充分开发，湍流强度可能高达几个百分点。一个充分发展的管流为核心的湍流强度可以由下面的公式从管流经验关系式推导出估计：
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2013-05-23 12:28:18
正在翻译，请等待...
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