TY - GEN

T1 - Multifractal analysis by using high-resolution direct numerical simulation of turbulence

AU - Ishihara, Takashi

AU - Higuchi, Hirotaka

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Multifractal analysis based on the energy dissipation ε and the enstrophy Ω in isotropic turbulence is made by using high-resolution direct numerical simulation of turbulence with the number of grid points up to 2048 3. The analysis shows that the singularity exponents α and α that characterize the intermittencies associated with ε and Ω, respectively, agree well with each other in the inertial subrange. This result is consistent with logεr and logΩr correlating well with each other for the scale r in the inertial subrange, where the subscript denotes the local average over a cubic domain of size r.

AB - Multifractal analysis based on the energy dissipation ε and the enstrophy Ω in isotropic turbulence is made by using high-resolution direct numerical simulation of turbulence with the number of grid points up to 2048 3. The analysis shows that the singularity exponents α and α that characterize the intermittencies associated with ε and Ω, respectively, agree well with each other in the inertial subrange. This result is consistent with logεr and logΩr correlating well with each other for the scale r in the inertial subrange, where the subscript denotes the local average over a cubic domain of size r.

KW - Highresolution DNS

KW - Intermittency

KW - Isotropic turbulence

KW - Multifractal analysis

UR - http://www.scopus.com/inward/record.url?scp=84861110545&partnerID=8YFLogxK

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U2 - 10.1007/978-1-4020-6472-2_9

DO - 10.1007/978-1-4020-6472-2_9

M3 - Conference contribution

AN - SCOPUS:84861110545

SN - 9781402064715

T3 - Solid Mechanics and its Applications

SP - 61

EP - 66

BT - IUTAM Symposium on Computational Physics and New Perspectives in Turbulence - Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence

T2 - IUTAM Symposium on Computational Physics and New Perspectives in Turbulence

Y2 - 11 September 2006 through 14 September 2006

ER -