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course:interesting_problems:2023:topic3:start [2022/08/26 13:49] yaohy |
course:interesting_problems:2023:topic3:start [2022/08/26 13:55] (当前版本) yaohy |
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| 3. Siren 汽笛 | 3. Siren 汽笛 | ||
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| If you direct an air flow onto a rotating disk with holes, a sound may be heard. Explain this phenomenon and investigate how the sound characteristics depend on the relevant parameters. | If you direct an air flow onto a rotating disk with holes, a sound may be heard. Explain this phenomenon and investigate how the sound characteristics depend on the relevant parameters. | ||
| 如果你将气流引导到一个带孔的旋转盘上，可能会听到声音。请解释这一现象并研究声音特性如何依赖相关参数的。 | 如果你将气流引导到一个带孔的旋转盘上，可能会听到声音。请解释这一现象并研究声音特性如何依赖相关参数的。 | ||
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| - | 图片 | + | {{:course:interesting_problems:2023:topic3:640.png?400|}} |
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| Stream lines over a hollow rotating disk | Stream lines over a hollow rotating disk | ||