| 单词 | vortex sheet |
| 释义 | > as lemmasvortex sheet vortex sheet n. a region of vortices that is created at the interface of two masses of fluid having different velocities along the interface. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > vortex > arrangement or region of vortices vortex sheet1879 street1926 Kármán street of vortices1928 cloud street1954 1879 H. Lamb Treat. Math. Theory Motion Fluids vi. 154 Let us suppose we have a series of vortex-filaments arranged in a thin film over a surface... The infinitely thin film is then called a ‘vortex-sheet’. 1926 H. Glauert Elem. Aerofoil & Airscrew Theory viii. 100 When two parallel layers of fluid are moving in the same direction with different velocities, the surface of separation is a vortex sheet. 1983 Jrnl. Fluids Engin. 105 53 Nascent vortex strength and position are determined from the Kutta condition so that the nascent vortex has the same strength as a vortex sheet of uniform strength. < as lemmas |
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