| 释义 |
Kármán|ˈkɑːmɑːn, -ən|
Also Karman.
[Name of Theodore von Kármán (1881–1963), Hungarian-born physicist and aeronautical engineer who investigated the phenomenon.]
Kármán (vortex) street, or Kármán street of vortices: a vortex street in which the vortices of one line are situated opposite points midway between those of the other line, an arrangement which is stable in certain conditions.
1928Proc. R. Soc. A. CXX. 34 (heading) The characteristics of the Karman vortex street in a channel of finite breadth. 1929Phil. Trans. R. Soc. A. CCXXVIII. 275 The following investigations deal with a Kármán street of vortices, or unsymmetrical double row, in a channel of finite width. 1936Proc. R. Soc. A. CLIV. 68 Some very fine photographs of Kármán streets have been taken..in the water tank at the Aeronautical Research Laboratory of the Imperial College. 1949O. G. Sutton Sci. of Flight iii. 64 In certain conditions the eddies detach themselves alternately from either edge of an obstacle placed across stream and as they break away they form in the wake the pattern known as the Kármán vortex street. 1956A. A. Townsend Struct. Turbulent Shear Flow vii. 149 The eddies occur alternately in each half of the wake (as in a Kármán vortex street). |