Free surface of a liquid in a rotating frame with time-depend velocity

"Free surface of a liquid in a rotating frame with time-depend velocity"
[English version] [Leer en español]

Martín MONTEIRO (1), Fernando TORNARÍA (2), Arturo C. MARTÍ (3)
  1. Universidad ORT Uruguay
  2. CES-ANEP, Montevideo, Uruguay
  3. Instituto de Física, Facultad de Ciencias, Universidad de la República, Uruguay

Abstract: The shape of liquid surface in a rotating frame depends on the angular velocity. In this experiment, a fluid in a rectangular container with a small width is placed on a rotating table. A smartphone fixed to the rotating frame simultaneously records the fluid surface with the camera and also, thanks to the built-in gyroscope, the angular velocity. When the table starts rotating the surface evolves and develops a parabolic shape. Using video analysis we obtain the surface's shape: concavity of the parable and height of the vertex. Experimental results are compared with theoretical predictions. This problem contributes to improve the understanding of relevant concepts in fluid dynamics.

Martín Monteiro, Fernando Tornaría, Arturo C. Martí (2019)
"Free surface of a liquid in a rotating frame with time-depend velocity"
arXiv:1908.04256 Physics Education (physics.ed-ph); Fluid Dynamics (physics.flu-dyn)






Paper:





Buy Me a Coffee at ko-fi.com

Comentarios