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dc.contributor.authorWilhelm, Dirk-
dc.contributor.authorHärtel, Carlos-
dc.contributor.authorEckelmann, Helmut-
dc.date.accessioned2018-12-11T15:34:29Z-
dc.date.available2018-12-11T15:34:29Z-
dc.date.issued1998-03-
dc.identifier.issn1386-6184de_CH
dc.identifier.issn1573-1987de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/13736-
dc.description.abstractDirect numerical simulation results of turbulent channel flow are analyzed in order to examine the relation between two kinds of near-wall flow structures, namely the instantaneous shear layers and the fronts which are derived from two-point statistics of the streamwise velocity component. The near-wall shear layers are analyzed by flow visualizations and conditional sampling, while the fronts are examined by means of space-time correlations and spatial two-point correlation functions. The present study focuses on the analysis of the propagation speed and the spatial shape of the structures. Concerning the propagation speed it is shown that the results obtained from flow visualizations are in close agreement with the propagation velocities derived from space-time correlation functions. The comparison of VISA results for the instantaneous shear with spatial structures obtained from two-point correlations of the streamwise velocity and the shear gives evidence that the fronts are intimately related to the pronounced near-wall shear layers.de_CH
dc.language.isoende_CH
dc.publisherSpringerde_CH
dc.relation.ispartofFlow, Turbulence and Combustionde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectWall turbulencede_CH
dc.subjectCoherent structuresde_CH
dc.subjectDirect numerical simulationde_CH
dc.subject.ddc530: Physikde_CH
dc.titleOn the relation between fronts and high-shear layers in wall turbulencede_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
dc.identifier.doi10.1023/A:1009952224076de_CH
zhaw.funding.euNode_CH
zhaw.issue1de_CH
zhaw.originated.zhawNode_CH
zhaw.pages.end103de_CH
zhaw.pages.start87de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume60de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Wilhelm, D., Härtel, C., & Eckelmann, H. (1998). On the relation between fronts and high-shear layers in wall turbulence. Flow, Turbulence and Combustion, 60(1), 87–103. https://doi.org/10.1023/A:1009952224076
Wilhelm, D., Härtel, C. and Eckelmann, H. (1998) ‘On the relation between fronts and high-shear layers in wall turbulence’, Flow, Turbulence and Combustion, 60(1), pp. 87–103. Available at: https://doi.org/10.1023/A:1009952224076.
D. Wilhelm, C. Härtel, and H. Eckelmann, “On the relation between fronts and high-shear layers in wall turbulence,” Flow, Turbulence and Combustion, vol. 60, no. 1, pp. 87–103, Mar. 1998, doi: 10.1023/A:1009952224076.
WILHELM, Dirk, Carlos HÄRTEL und Helmut ECKELMANN, 1998. On the relation between fronts and high-shear layers in wall turbulence. Flow, Turbulence and Combustion. März 1998. Bd. 60, Nr. 1, S. 87–103. DOI 10.1023/A:1009952224076
Wilhelm, Dirk, Carlos Härtel, and Helmut Eckelmann. 1998. “On the Relation between Fronts and High-Shear Layers in Wall Turbulence.” Flow, Turbulence and Combustion 60 (1): 87–103. https://doi.org/10.1023/A:1009952224076.
Wilhelm, Dirk, et al. “On the Relation between Fronts and High-Shear Layers in Wall Turbulence.” Flow, Turbulence and Combustion, vol. 60, no. 1, Mar. 1998, pp. 87–103, https://doi.org/10.1023/A:1009952224076.


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