LATENT REFERENCES / TAG2
Acoustic Streaming
Original title: 音響流
This reference note belongs to Tag2 in Latent References, an archive curated by Keigo Yoshida. Its archive region is Physics. The note preserves its source text and links so that readers can trace the material behind the 3D map.
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Acoustic streaming is a steady flow of fluid elements arising when powerful ultrasound is irradiated into a fluid. The driving force arises from absorption and attenuation of sound energy accompanying ultrasound propagation, so it becomes stronger at higher frequencies. Generally, acoustic streaming is clearly observed in frequency ranges of the order of MHz or above.
#physics
音響流とは、強力な超音波を流体中に照射した場 合に生じる、 流体要素の直流的な流れである。 この 流れの駆動力の発生は、 超音波の伝搬に伴う音のエ ネルギーの吸収減衰に起因するため、周波数が高い ほど駆動力は強くなる。 一般に、 音響流はMHz オー ダー以上の周波数領域で、はっきりと観察される。
#physics
Source updated 2024-08-05 · Snapshot 2026-10-08
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