000 04023nam a22005655i 4500
001 978-981-4560-23-8
003 DE-He213
005 20200420220223.0
007 cr nn 008mamaa
008 130807s2014 si | s |||| 0|eng d
020 _a9789814560238
_9978-981-4560-23-8
024 7 _a10.1007/978-981-4560-23-8
_2doi
050 4 _aTA357-359
072 7 _aTGMF
_2bicssc
072 7 _aTGMF1
_2bicssc
072 7 _aTEC009070
_2bisacsh
072 7 _aSCI085000
_2bisacsh
082 0 4 _a620.1064
_223
100 1 _aChing, Emily S.C.
_eauthor.
245 1 0 _aStatistics and Scaling in Turbulent Rayleigh-B�enard Convection
_h[electronic resource] /
_cby Emily S.C. Ching.
264 1 _aSingapore :
_bSpringer Singapore :
_bImprint: Springer,
_c2014.
300 _aVIII, 65 p. 8 illus., 1 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringerBriefs in Applied Sciences and Technology,
_x2191-530X
505 0 _aThe Rayleigh-B�enard Convection System -- Statistical Analysis of Turbulent Fluctuations -- Phenomenology and Scaling Theories -- Observed Scaling Behavior -- Summary and Outlook.
520 _aThis Brief addresses two issues of interest of turbulent Rayleigh-B�enard  convection. The first issue is the characterization and understanding of the statistics of the velocity and temperature fluctuations in the system. The second issue is the revelation and understanding of the nature of the scaling behavior of the velocity temperature structure functions. The problem under the Oberbeck-Boussinesq approximation is formulated. The statistical tools, including probability density functions (PDF) and conditional statistics, for studying fluctuations are introduced, and implicit PDF formulae for fluctuations obeying certain statistical symmetries are derived. Applications of  these PDF formulae to study the fluctuations in turbulent Rayleigh-B�enard convection are then discussed. The phenomenology of the different types of scaling behavior: the Bolgiano-Obhukov scaling behavior when buoyancy effects are significant and the Kolmogorov-Obukhov-Corrsin scaling behavior when they are not, is introduced. A crossover between the two types of scaling behavior is expected to occur at the Bolgiano length scale above which buoyancy is important. The experimental observations are reviewed. In the central region of the convective cell, the Kolmogorov-Obukhov-Corrsin scaling behavior has been observed. On the other hand, the Bolgiano-Obukhov scaling remains elusive only until recently. By studying the dependence of the conditional temperature structure functions on the locally averaged thermal dissipation rate, evidence for the Bolgiano-Obukhov scaling has recently been found near the bottom plate. The different behaviors observed in the two regions could be attributed to the different size of the Bolgiano scale. What physics determines the relative size of the Bolgiano scale remains to be understood. The Brief is concluded by a discussion of these outstanding issues.
650 0 _aEngineering.
650 0 _aFluids.
650 0 _aThermodynamics.
650 0 _aHeat engineering.
650 0 _aHeat transfer.
650 0 _aMass transfer.
650 0 _aFluid mechanics.
650 1 4 _aEngineering.
650 2 4 _aEngineering Fluid Dynamics.
650 2 4 _aThermodynamics.
650 2 4 _aEngineering Thermodynamics, Heat and Mass Transfer.
650 2 4 _aFluid- and Aerodynamics.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9789814560221
830 0 _aSpringerBriefs in Applied Sciences and Technology,
_x2191-530X
856 4 0 _uhttp://dx.doi.org/10.1007/978-981-4560-23-8
912 _aZDB-2-ENG
942 _cEBK
999 _c52021
_d52021