MARC record from Internet Archive

LEADER: 01963nam 2200301 a 45 0
001 a184203
008 970414s1989 caua b f000|0 eng d
040 $aCMontNP$cCMontNP
086 0 $aD 208.14/2:NPS-53-89-012
100 1 $aCanright, David.
245 10 $aRayleigh-Taylor instability of a viscous film overlying a pasive fluid /$cDavid Canright, Stephen Morris.
260 0 $aMonterey, Calif. :$bNaval Postgraduate School ;$aSpringfield, Va. :$bAvailable from National Technical Information Service,$c[1989].
300 $a33, [13] p. :$bill. ;$c28 cm.
500 $aCover title.
500 $a"NPS-53-89-012"
500 $a"February 1989."
500 $aAD-A205 578.
504 $aIncludes bibliographical references (p. 33).
520 $aTo help understand the stability of cold, viscous boundary layers in geophysical contexts such as lava lakes and mantle convection, the following model problem is analyzed: Beneath a shear-free horizontal boundary, a thin layer of very viscous fluid overlies a deep layer of less viscous, less dense fluid. The initial unstable equilibrium is perturbed, and the growth of the disturbance is followed, including the nonlinear effects of large amplitude, by a long-wave analysis. The result shows that, in the final catastrophic growth, the peak thickness of the upper layer approaches infinity inversely proportional to the remaining time. (This conclusion also applies to fluids with power-law rheology.) Thus nonlinear effects greatly enhance growth. Keywords: Earth models. (EDC)
592 $aaq/aq cc:9116 04/14/97.
650 4 $aBOUNDARY LAYER FLOW.
650 4 $aEARTH MODELS.
650 4 $aVISCOUS FLOW.
700 1 $aMorris, Stephen.
710 2 $aNaval Postgraduate School (U.S.).$bDept. of Mathematics.
740 01 $aNPS-53-89-012.
926 $aNPS-LIB$bDIGIPROJ$cD 208.14/2:NPS-53-89-012$dBOOK$eNEVER$f1
926 $aNPS-LIB$bFEDDOCS$cD 208.14/2:NPS-53-89-012$dBOOK$f2