The Froude number of flow is the factor of flow status: supercritical flow or subcritical flow.
流量的福劳德数是流动状态的影响因素，即超临界流或亚临界流。
The method considers that the flow near tunnel walls is subcritical while the flow near model may be supercritical and shock waves may exist near by model.
该方法要求洞壁附近为亚音速流动，但允许模型附近出现超音速区及激波。
The method considers that the flow near tunnel walls is subcritical while the flow near model may be supercritical and shock waves may exist near by model.
该方法要求洞壁附近为亚音速流动，但允许模型附近出现超音速区及激波。
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