<span style="background-color:#EE82EE ; color:#0000FF;">Von Karman vortex street (laminar, temperature), Re = 250</span>: <strong;, ;span style="color:#0000FF;, ; background-color: yellow;, ;font-size:xx-large;, ; font-family: "georgia""> ♡☆♡ Wish Fuilfiling-Lady Yamato Hime-Shining Pearly Box ♡☆♡ </span>

2018年09月18日

Von Karman vortex street (laminar, temperature), Re = 250

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Von Karman vortex street
(laminar, temperature), Re = 250

https://youtu.be/IDeGDFZSYo8

DolfynNet
2010/02/13 に公開
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A Computational Fluid Dynamics (CFD) simulation of the Von Karman vortex street behind a hot cylinder. Reynolds number Re = 250. Codes used: Gmsh, dolfyn, and VisIt. (wervelstraat, Wirbelstrasse)

カテゴリ　科学と技術
ライセンス　標準の YouTube ライセンス

NOTE
カルマン渦
https://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%AB%E3%83%9E%E3%83%B3%E6%B8%A6

逆カルマン渦
魚は泳ぐときに尾びれを運動させ後方に千鳥配置の渦列を作る。これはカルマン渦に似ているが渦の向きが逆であり、逆カルマン渦と呼ばれる[6]。逆カルマン渦は安定した渦列ではないが、渦の向きが逆であるために後流に発生する誘導速度が推進力を生み出す。

Fish move the tail fin when swimming and make a staggered vortex street behind. This is similar to the Karman vortex, but the direction of the vortex is opposite, called the reverse Karman vortex [6]. The inverse Karman vortex is not a stable vortex street, but because the direction of the vortex is reversed, the induction velocity generated in the wakeflow creates propulsive force.

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Reference Note

Kármán vortex street：Wikipedia

https://en.wikipedia.org/wiki/K%C3%A1rm%C3%A1n_vortex_street

Kármán vortex street

In fluid dynamics, a Kármán vortex street (or a von Kármán vortex street) is a repeating pattern of swirling vortices, caused by a process known as vortex shedding, which is responsible for the unsteady separation of flow of a fluid around blunt bodies. It is named after the engineer and fluid dynamicist Theodore von Kármán,[1] and is responsible for such phenomena as the "singing" of suspended telephone or power lines and the vibration of a car antenna at certain speeds.

This page was last edited on 24 June 2018, at 00:13 (UTC).

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