dc.date.accessioned | 2022-03-18T17:43:54Z | |
dc.date.available | 2022-03-18T17:43:54Z | |
dc.date.created | 2021-09-21T13:48:13Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Birnir, Björn Angheluta, Luiza Kaminsky, John Chen, Xi . Spectral link of the generalized Townsend-Perry constants in turbulent boundary layers. Physical Review Research (PRResearch). 2021, 3(4) | |
dc.identifier.uri | http://hdl.handle.net/10852/92580 | |
dc.description.abstract | We propose a first minimal theory for boundary layer turbulence that captures very well the profile of the mean-square velocity fluctuations in the streamwise direction and give a quantitative prediction of the Townsend-Perry constants. Our theory is based on connecting all moments of velocity fluctuations as a function of the distance to the wall with the turbulent energy spectrum. A similar spectral theory was proposed in G. Gioia and P. Chakraborty [Phys. Rev. Lett. 96, 044502 (2006)] to explain the friction factor and the von Kármán law in G. Gioia, N. Guttenberg, N. Goldenfeld, and P. Chakraborty [Phys. Rev. Lett. 105, 184501 (2010)]. We generalized it by including fluctuations in the wall-shear stress and the streamwise velocity. The theoretical predictions for the mean velocity and mean-square fluctuations reproduce the shape of the velocity profiles in the buffer and inertial layer obtained from wind tunnel experiments. | |
dc.language | EN | |
dc.publisher | American Physical Society (APS) | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Spectral link of the generalized Townsend-Perry constants in turbulent boundary layers | |
dc.type | Journal article | |
dc.creator.author | Birnir, Björn | |
dc.creator.author | Angheluta, Luiza | |
dc.creator.author | Kaminsky, John | |
dc.creator.author | Chen, Xi | |
cristin.unitcode | 185,15,18,0 | |
cristin.unitname | NJORD senter for studier av jordens fysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1936591 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review Research (PRResearch)&rft.volume=3&rft.spage=&rft.date=2021 | |
dc.identifier.jtitle | Physical Review Research (PRResearch) | |
dc.identifier.volume | 3 | |
dc.identifier.issue | 4 | |
dc.identifier.pagecount | 9 | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevResearch.3.043054 | |
dc.identifier.urn | URN:NBN:no-95152 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2643-1564 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/92580/1/PhysRevResearch.3.043054.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 043054 | |