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Lognormality of the scalar dissipation pdf in turbulent flows
dc.contributor.authorDahm, Werner J. A.en_US
dc.contributor.authorBuch, Kenneth A.en_US
dc.date.accessioned2010-05-06T22:20:55Z
dc.date.available2010-05-06T22:20:55Z
dc.date.issued1989-07en_US
dc.identifier.citationDahm, Werner J. A.; Buch, Kenneth A. (1989). "Lognormality of the scalar dissipation pdf in turbulent flows." Physics of Fluids A: Fluid Dynamics 1(7): 1290-1293. <http://hdl.handle.net/2027.42/70557>en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/70557
dc.description.abstractIt is shown that measurements of lower‐dimensional projections of the scalar gradient in an isotropic conserved scalar field ζ(x,t) are sufficient to construct the probability density function (pdf) for the true scalar dissipation χ. With this general method, the true scalar dissipation pdf is obtained from the result reported recently for the approximate pdf based on ‖∇ζ‖2≈3⋅(∂ζ/∂x)2. Results show that (i) the pdf of the true scalar dissipation is virtually lognormal and (ii) the most probable value of χ increases and the rms fluctuations of χ decrease in comparison with their one‐dimensional estimates.en_US
dc.format.extent3102 bytes
dc.format.extent501560 bytes
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/octet-stream
dc.publisherThe American Institute of Physicsen_US
dc.rights© The American Institute of Physicsen_US
dc.titleLognormality of the scalar dissipation pdf in turbulent flowsen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Aerospace Engineering, The University of Michigan, Ann Arbor, Michigan 48109‐2140en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/70557/2/PFADEB-1-7-1290-1.pdf
dc.identifier.doi10.1063/1.857356en_US
dc.identifier.sourcePhysics of Fluids A: Fluid Dynamicsen_US
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dc.owningcollnamePhysics, Department of


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