When the wind blows, the balcony door swishs, but it doesn t make a sound, what s going on?

Updated on Balcony 2024-04-17
2 answers
  1. Anonymous users2024-01-23

    When the air passes through the gap when it is closed, the flow rate is fast, and the sound is caused by friction with the gap. When opened, the air flows slowly, so it is silent.

  2. Anonymous users2024-01-22

    ——The balcony door is not tightly sealed.

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