Spin-up of a double-diffusive fluid in a cylinder

Cited 1 time in webofscience Cited 0 time in scopus
  • Hit : 294
  • Download : 0
A numerical study is made of the linearized spin-up process of a double-diffusive fluid in a vertically mounted cylindrical vessel of aspect ratio 0(1). Both the temperature and concentration conditions render gravitationally stable contributions to the overall density profile. Numerical solutions are acquired to the time-dependent axisymmetric Navier-Stokes equations, using the standard Boussinesq fluid approximations. The major nondimensional parameters are identified. Results are compiled for small Ekman number, the Prandtl number similar to 0(1), and broad ranges of the stratification number St, buoyancy ratio R-p, and Lewis number Le, are dealt with. The evolution of the azimuthal velocities is described, and the attendant meridional flows are depicted. The global spin-up process is retarded for a double-diffusive fluid, and this trend is more pronounced as R-p increases. The spatial nonuniformity of the rate of spin-up is enhanced as St and R-p increase. The effects of double-diffusion on the fields of perturbation density, temperature, and concentration are plotted. The impact of Le on spin-up is illustrated, and the plots of the perturbation physical variables of interest are presented. (C) 1997 by Elsevier Science Inc.
Publisher
ELSEVIER SCIENCE INC
Issue Date
1997
Language
English
Article Type
Article
Keywords

STRATIFIED FLUID; HORIZONTAL TEMPERATURE; CRYSTAL-GROWTH; CONVECTION; FLOW; GRADIENTS; MELT

Citation

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, v.18, no.5, pp.507 - 517

ISSN
0142-727X
URI
http://hdl.handle.net/10203/77333
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 1 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0