KS Inertial Range and Validity of Richardson Regime | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 63, Volume 13, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009, May 2009, Page 1-13 PDF (470.35 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.2009.23731 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| F. Nicolleau1; A. Abou El-Azm Aly2 | ||||
| 1Senior Lecturer, Department of Mechanical Engineering, The University of Sheffield, UK. | ||||
| 2Egyptian Armed Forces. | ||||
| Abstract | ||||
| Abstract: It has been argued in [10] that due to the lack of sweeping of small scales by large scales in kinematic simulation, the validity of the Richardson's power law might be affected. Here, we argue that the discrepancies between the authors on the ability of kinematic simulation, KS, to predict Richardson power law may be linked to the inertial subrange they have used. For small inertial subrange, KS is efficient and the significance of the sweeping can be ignored, as a result we limit the KS agreement with the Richardson scaling law t3 for inertial subrange kN/k1 ≤ 10000. Above this value, the sweeping effect of the small scales by the large scales must be taken in considerations where KS failed to reproduces this power law in that range as obtained in [13]. | ||||
| Keywords | ||||
| Richardson Regime; kinematic simulation; two-particle separation | ||||
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