stream tubeの例文

例文

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1. Similarly, the lower stream tubes expand and the flow slows down.
2. Conservation of mass says that the flow speed must increase as the stream tube area decreases.
3. The picture shows that the upper stream tubes constrict as they flow up and around the airfoil.
4. The volume flux through a stream tube, bounded by a surface of constant " ? ", equals " 2? ? ", as before.
5. Using the concept of stream tube, the maximal achievable extraction of wind power by a wind turbine is 59 % of the total theoretical wind power ( see : Betz'law ).