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Träfflista för sökning "WFRF:(Rahm Lars) srt2:(1979)"

Sökning: WFRF:(Rahm Lars) > (1979)

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1.
  • Rahm, Lars, 1948-, et al. (författare)
  • On thermal convection in stratified fluids
  • 1979
  • Ingår i: Geophysical and Astrophysical Fluid Dynamics. - : Informa UK Limited. - 0309-1929 .- 1029-0419. ; 13, s. 51-65
  • Tidskriftsartikel (refereegranskat)abstract
    • The study of the mechanisms controlling the stratification in closed fluid regions is an important branch of geophysical fluid dynamics. Part of this subject can be handled with a simple linear model, consisting of a buoyancy layer at the non-horizontal boundaries of a container and an advective-diffusive interior coupled by volume continuity. The model is valid under the following conditions: firstly, the buoyancy-frequency characterizing the solution must be sufficiently large to give rise to a flow pattern of boundary layer type and, secondly, the non-horizontal walls must not have too large thermal conductivity.The main purpose of the present paper is to summarise previous work done by the authors in this field and to present some consequences of their theory not previously discussed.Three important cases are discussed; certain stationary solutions, the decay of a given stratification and the build up of a stratification in a homogeneous fluid. The experimental results concerning the afore-mentioned cases are presented.
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2.
  • Walin, Gösta, et al. (författare)
  • Theory and experiments on the control of the stratification in almost-enclosed regions
  • 1979
  • Ingår i: Journal of Fluid Mechanics. - 0022-1120 .- 1469-7645. ; 90:2, s. 315-325
  • Tidskriftsartikel (refereegranskat)abstract
    • A comparison is made between the theoretically predicted and the observed stratification in a container which is traversed by a prescribed flux of fluid. Two different geometries were used illustrating respectively a useful procedure for the control of a stratified laboratory system and a mechanism which is believed to be geophysically significant, e.g. for the control of the stratification in certain estuaries. The behaviour of the fluid system was in all cases characterized by an almost stagnant interior with a boundary layer at the non-horizontal wall of buoyancy-layer type. Agreement between theory and experiment was satisfactory within experimental errors, say 10% of the overall temperature difference.
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  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
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Rahm, Lars, 1948- (2)
Walin, Gösta (2)
Lärosäte
Linköpings universitet (2)
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Engelska (2)
Forskningsämne (UKÄ/SCB)
Samhällsvetenskap (2)
År
1979 (2)Ta bort avgränsningen

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