| Turbulence compressibility reduction with helicity | |
Yang Y(杨焱)1 ; Zhu JZ2,3
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| Corresponding Author | Zhu, Jian-Zhou([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2022-04-01 | |
| Volume | 34Issue:4Pages:6 |
| ISSN | 1070-6631 |
| Abstract | A numerical test of isotropic turbulence compressibility reduction with helicity in a cyclic box is performed. The ratios of compressibility-relevant-mode spectra over those of kinetic energy present power laws at large wavenumbers in the dissipation range, indicating a common difference of 11/15 in the exponents of the algebraic prefactor of the nonhelical power spectra over those of helical ones. Our results being not derived from the shapes of the spectra themselves, the implied information about the helicity effect on the complex singularities of the discretized dynamical system can be of reasonable value for insight of the Navier-Stokes equation, though the high-order finite difference scheme used for computation may not be as accurate in the dissipation range as the state-of-the-art of incompressible turbulence with the pseudo-spectral method. Possible applications in controlling flows, for the purpose of, say, decreasing turbulence noise, are also discussed according to the spectral fluctuations.& nbsp;Published under an exclusive license by AIP Publishing.& nbsp; |
| DOI | 10.1063/5.0089333 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000790391900003 |
| WOS Keyword | COMPLEX SINGULARITIES ; INTERMITTENCY |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China (NSFC)[11672102] ; National Natural Science Foundation of China (NSFC)[11602277] |
| Funding Organization | National Natural Science Foundation of China (NSFC) |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Zhu, Jian-Zhou |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89088 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China; 2.Su Cheng Ctr Fundamental & Interdisciplinary Sci, Nanjing 211316, Peoples R China; 3.Nanchang Univ, Fluid Inst, Nanchang 330031, Peoples R China |
| Recommended Citation GB/T 7714 | Yang Y,Zhu JZ. Turbulence compressibility reduction with helicity[J]. PHYSICS OF FLUIDS,2022,34,4,:6.Rp_Au:Zhu, Jian-Zhou |
| APA | 杨焱,&Zhu JZ.(2022).Turbulence compressibility reduction with helicity.PHYSICS OF FLUIDS,34(4),6. |
| MLA | 杨焱,et al."Turbulence compressibility reduction with helicity".PHYSICS OF FLUIDS 34.4(2022):6. |
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| Jp2022FA443_2022_Tur（1701KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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