Yakiniku

Let's take a look!

What type of experiment is this?

Experimental procedure and explanation:

• This experiment is titled Yakiniku (Japanese barbecue). Do the flames look like yakiniku?
• Cut several strips of red paper tape, arrange them along a ruler, and secure them with cellophane tape. Place the ruler over the outlet of a circulator.
• When the circulator blows air, the paper strips flutter upward and sway like flames.
• If a balloon (45 cm in size) is placed above the airflow, it will float in the air. Changing the wind speed alters the height at which the balloon hovers.
• This video was produced with the support of the JSPS Grant-in-Aid for Scientific Research (18K03956).

[Keywords]	Properties of flow around objects, momentum theory
[Related items]	Lifting a Balloon with Circulator, Fountain with a dryer?
[References]	Ryozo Ishiwata, “Illustrated Fluid Dynamics Trivia,” Natsume Publishing, pp. 218–219, pp. 206–209. Ryozo Ishiwata and Mitsumasa Nemoto, “The Wonder of Flow,” Kodansha Bluebacks, pp. 128–133.

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