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 -