Geodesic
Numerical study of a descending sphere in a low Reynolds number strongly stratified fluid
Electronic transactions on numerical analysis, Tome 34 (2009)
The flow generated by a sphere descending uniformly in a linearly stratified diffusive fluid is investigated numerically for different Reynolds (Re) and Froude (F ) numbers. The parameters used for the simulations were 10 - $1 \leq $Re $\leq 10$ and 10 - $2 \leq F \leq 102$, keeping the Schmidt number, Sc (= 700, typical of sea water) fixed. The results demonstrate drag dependence on viscosity and stratification, suggesting that changes in these parameters would be intimately related to the phenomena of zooplankton vertical movement in the ocean.
Classification : 35Q30, 35Q35, 35K15, 35K20
Keywords: stratified fluid, flow past sphere, low Reynolds number, MAC method, preconditioning, Krylov methods 
@article{ETNA_2009__34__a6,
     author = {Torres,  Carlos R. and De Cecchis,  Dany and Larraz\'abal,  Germ\'an and Castillo,  Jos\'e},
     title = {Numerical study of a descending sphere in a low {Reynolds} number strongly stratified fluid},
     journal = {Electronic transactions on numerical analysis},
     year = {2009},
     volume = {34},
     zbl = {1185.35175},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2009__34__a6/}
}
TY  - JOUR
AU  - Torres,  Carlos R.
AU  - De Cecchis,  Dany
AU  - Larrazábal,  Germán
AU  - Castillo,  José
TI  - Numerical study of a descending sphere in a low Reynolds number strongly stratified fluid
JO  - Electronic transactions on numerical analysis
PY  - 2009
VL  - 34
UR  - http://geodesic.mathdoc.fr/item/ETNA_2009__34__a6/
LA  - en
ID  - ETNA_2009__34__a6
ER  - 
%0 Journal Article
%A Torres,  Carlos R.
%A De Cecchis,  Dany
%A Larrazábal,  Germán
%A Castillo,  José
%T Numerical study of a descending sphere in a low Reynolds number strongly stratified fluid
%J Electronic transactions on numerical analysis
%D 2009
%V 34
%U http://geodesic.mathdoc.fr/item/ETNA_2009__34__a6/
%G en
%F ETNA_2009__34__a6
Torres,  Carlos R.; De Cecchis,  Dany; Larrazábal,  Germán; Castillo,  José. Numerical study of a descending sphere in a low Reynolds number strongly stratified fluid. Electronic transactions on numerical analysis, Tome 34 (2009). http://geodesic.mathdoc.fr/item/ETNA_2009__34__a6/