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Title: Generalized logarithmic scaling for high-order moments of the longitudinal velocity component explained by the random sweeping decorrelation hypothesis

Authors:
; ; ; ORCiD logo;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1322414
Grant/Contract Number:
SC0006967; SC0011461
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physics of Fluids
Additional Journal Information:
Journal Volume: 28; Journal Issue: 9; Related Information: CHORUS Timestamp: 2016-12-26 00:21:06; Journal ID: ISSN 1070-6631
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English

Citation Formats

Katul, Gabriel G., Banerjee, Tirtha, Cava, Daniela, Germano, Massimo, and Porporato, Amilcare. Generalized logarithmic scaling for high-order moments of the longitudinal velocity component explained by the random sweeping decorrelation hypothesis. United States: N. p., 2016. Web. doi:10.1063/1.4961963.
Katul, Gabriel G., Banerjee, Tirtha, Cava, Daniela, Germano, Massimo, & Porporato, Amilcare. Generalized logarithmic scaling for high-order moments of the longitudinal velocity component explained by the random sweeping decorrelation hypothesis. United States. doi:10.1063/1.4961963.
Katul, Gabriel G., Banerjee, Tirtha, Cava, Daniela, Germano, Massimo, and Porporato, Amilcare. 2016. "Generalized logarithmic scaling for high-order moments of the longitudinal velocity component explained by the random sweeping decorrelation hypothesis". United States. doi:10.1063/1.4961963.
@article{osti_1322414,
title = {Generalized logarithmic scaling for high-order moments of the longitudinal velocity component explained by the random sweeping decorrelation hypothesis},
author = {Katul, Gabriel G. and Banerjee, Tirtha and Cava, Daniela and Germano, Massimo and Porporato, Amilcare},
abstractNote = {},
doi = {10.1063/1.4961963},
journal = {Physics of Fluids},
number = 9,
volume = 28,
place = {United States},
year = 2016,
month = 9
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1063/1.4961963

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  • Tennekes (J. Fluid Mech. {bold 67}, 561 (1975)) estimated the time decorrelation of inertial-range excitation in isotropic turbulence by assuming effective statistical independence of the one-time distributions of inertial-range and energy-range excitation. This picture has been challenged by Yakhot, Orszag, and She (Phys. Fluids A {bold 1}, 184 (1989)), who studied forced turbulence by renormalization-group (RNG) methods. The analysis given in the present paper leads to the conclusion that (a) precise coherence between energy-range and inertial-range excitation is needed to inhibit sweeping effects; (b) in the case of randomly forced turbulence, this coherence is impossible and Tennekes' picture is unavoidable;more » and (c) the RNG analysis does not demonstrate inhibition of sweeping; instead, it discards sweeping effects at the outset. To augment the present study, an advected passive scalar is examined by computer simulation. Sweeping effects on small scales survive even in the case of long-time advection by a frozen velocity field. The observed probability distributions resemble those for the alignment of vorticity and velocity observed in flow simulations.« less
  • The generalized geometrical scaling hypothesis for elastic hadron-hadron scattering is tested by the precise experimental data of the {ital pp} and {bar {ital p}}{ital p} differential cross sections in the energy range {radical}{ital s}=20{endash}550 GeV. It is found that the departure from the hypothesis does not exceed 2{percent}. {copyright} {ital 1996 The American Physical Society.}
  • The previously proposed quark-parton model with logarithmic scaling violation is used to calculate the cross sections for deep inelastic ..nu..(nu-bar)N interactions and to determine the contribution from processes with charmed-particle production. Kinematic mass corrections to the scaling and threshold effects are taken into account in the calculations. A combined analysis of the experimental data on deep inelastic ep and ed scattering and the ..nu..(nu-bar)N interaction with charged currents is carried out using a unified set of variational parameters of the model. The masses of the c quark and the W boson are estimated. The data on neutral currents are analyzedmore » taking into account scaling violation. The Weinberg angle theta/sub W/ is estimated.« less
  • We propose a quark-parton model with logarithmic scaling violation. Its basic principles do not contradict the quantum chromodynamics. Explicit expressions for quark and gluon distributions in the nucleon have been obtained. On their basis, the cross sections of deep inelastic ep, ed, and nu(anti nu) N scattering have been calculated. The results of the calculations are compared with experimental data.
  • In an earlier paper (J. Acoust. Soc. Am. 50, 1116--1122 (1971)) I presented a lateralization model of binaural masking-level differences (MLD's), according to which detection under conditions which produce an MLD is based on the average value of an interaural parameter, ..delta... This factor is made up of interaural time (..delta..t) plus interaural intensity (..delta..I) weighted by a binaural trading ratio (TR). Two figures in that paper depicted application of the model to MLD's found as a function of frequency ((Hirch and Burgeat, J. Acoust. Soc. Am. 30, 827--832 (1958)); those figures are partially incorrect. They show the lateralization equationmore » with a time-intensity trading ratio of 20 ..mu..sec/dB to be the best fit, when, in fact, the fit to TR=0 ..mu..sec/dB is excellent. The lateralization model with a trading ratio of 0 is very much like the vector model of Webster (J. Acoust. Soc. Am. 23, 452-- 462 (1951)) and Jeffress et al. (J. Acoust. Soc. Am. 28, 416--426 (1956)). It is suggested here that variability in the noise process may be significant factor, allowing binaural neurons tuned to high frequencies to recover and then respond again to interaural differences of time.« less