Numerical Simulation of Two-Dimensional Turbulence with High-Symmetry
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概要
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A two-dimensional high-Reynolds number flow is simulated starting from ahigh-symmetric random initial condition. At early stages of evolution narrowband renions of vorticit>' are built-ur b>' stretchinn of ecuuivorticit>r lines. Theirare broken down into a block of eddies of very complicated structure through arolling-up instability and subsequent stretching and reconnection processes ofequi-vorticity lines. Around this break-down time the enstrophy-dissipation ratetakes the maximum value and the power form of the energy spectrum in theinertial range changes from k-"' to k-'
- 1985-08-15
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関連論文
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