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Topics in multiphase flow.

Wang, Jing.

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Topics in multiphase flow.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Topics in multiphase flow./
作者:	Wang, Jing.
面頁冊數:	230 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2148.
Contained By:	Dissertation Abstracts International66-04B.
標題:	Applied Mechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3172858
ISBN:	9780542100253

Topics in multiphase flow.
Wang, Jing.

Topics in multiphase flow. - 230 p.

Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2148.

Thesis (Ph.D.)--University of Minnesota, 2005.

Several topics in multiphase flows are studied. The lift and motion of a particle in channel flows are studied by direct numerical simulation. We obtain power law correlations for the lift force by analogy with the classical lift formula L = rhoUGamma of aerodynamics. Explicit correlations for particle velocities and equilibrium positions are also constructed, which enable us to predict parameters of a particle at equilibrium state.

ISBN: 9780542100253Subjects--Topical Terms:

1018410
Applied Mechanics.

Topics in multiphase flow.
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300 $a 230 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2148.
500 $a Adviser: Daniel D. Joseph.
502 $a Thesis (Ph.D.)--University of Minnesota, 2005.
520 $a Several topics in multiphase flows are studied. The lift and motion of a particle in channel flows are studied by direct numerical simulation. We obtain power law correlations for the lift force by analogy with the classical lift formula L = rhoUGamma of aerodynamics. Explicit correlations for particle velocities and equilibrium positions are also constructed, which enable us to predict parameters of a particle at equilibrium state.
520 $a We discover that the addition of small concentrations of nanoparticles greatly enhances the pulling power of the liquid in tubeless and open siphons. The dramatic effects of the nanoparticles are attributed to a bridging mechanism, in which nanosized silica particles surrounded by an immobilized shell of polymer are bridged by much larger polymer molecules.
520 $a Viscous and viscoelastic potential flow is a theory in which the flow is assumed to be irrotational and the viscous and viscoelastic effects are retained. This theory is applied to the potential flow of a second-order fluid past a sphere or an ellipse. The effect of the viscoelastic terms is opposite to that of inertia; the normal stress at a point of stagnation can change from compression to tension. We compute a viscous correction of the irrotational pressure to resolve the discrepancy between the non-zero irrotational shear stress and the zero shear stress required at a free surface. Pressure corrections are calculated in problems such as a rising gas bubble in a viscous fluid, the decay of free gravity waves, and capillary instability; excellent results which are in agreement with those from the dissipation method or exact solutions were obtained.
520 $a A new boundary layer analysis was carried out for the flow past a rotating cylinder, in which the continuity of the shear stress at the outer edge of the boundary layer is enforced and the pressure across the boundary layer is solved from the governing equations. The viscous effects on the pressure, not given in Prandtl's theory, were obtained and the drag and lift force due to the pressure were calculated.
590 $a School code: 0130.
650 4 $a Applied Mechanics. $3 1018410
690 $a 0346
710 2 0 $a University of Minnesota. $3 676231
773 0 $t Dissertation Abstracts International $g 66-04B.
790 1 0 $a Joseph, Daniel D., $e advisor
790 $a 0130
791 $a Ph.D.
792 $a 2005
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