TY - JOUR

T1 - Developed Turbulence: From Full Simulations to Full Mode Reductions

AU - Grossmann, Siegfried

AU - Lohse, Detlef

AU - Reeh, Achim

PY - 1996

Y1 - 1996

N2 - Developed Navier-Stokes turbulence is simulated with varying wave-vector mode reductions. The flatness and the skewness of the velocity derivative depend on the degree of mode reduction. They show a crossover towards the value of the full numerical simulation when the viscous subrange starts to be resolved. The intermittency corrections of the scaling exponents zeta p of the pth order velocity structure functions seem to depend mainly on the proper resolution of the inertial subrange. Universal scaling properties (i.e., independent of the degree of mode reduction) are found for the relative scaling exponents rho p,q = ( zeta p- zeta 3p/3)/( zeta q- zeta 3q/3).

AB - Developed Navier-Stokes turbulence is simulated with varying wave-vector mode reductions. The flatness and the skewness of the velocity derivative depend on the degree of mode reduction. They show a crossover towards the value of the full numerical simulation when the viscous subrange starts to be resolved. The intermittency corrections of the scaling exponents zeta p of the pth order velocity structure functions seem to depend mainly on the proper resolution of the inertial subrange. Universal scaling properties (i.e., independent of the degree of mode reduction) are found for the relative scaling exponents rho p,q = ( zeta p- zeta 3p/3)/( zeta q- zeta 3q/3).

KW - IR-50341

U2 - 10.1103/PhysRevLett.77.5369

DO - 10.1103/PhysRevLett.77.5369

M3 - Article

SN - 0031-9007

VL - 77

SP - 5369

EP - 5372

JO - Physical review letters

JF - Physical review letters

IS - 27

ER -