DNS of dispersed multiphase flows with heat transfer and rarefaction effects

被引：0

作者：

Ström, Henrik ^{[1
]}

Sasic, Srdjan ^{[1
]}

机构：

[1] Department of Applied Mechanics, Division of Fluid Dynamics, Chalmers University of Technology, Gothenburg

来源：

Journal of Computational Multiphase Flows | 2014年 / 6卷 / 03期

关键词：

Deformation - Froth flotation - Isotherms;

D O I：

10.1260/1757-482X.6.3.193

中图分类号：

TK1 [热力工程、热机];

学科分类号：

080702 ;

摘要：

We propose a method for DNS of particle motion in non-isothermal systems. The method uses a shared set of momentum and energy balance equations for the carrier- and the dispersed phases. Measures are taken to ensure that non-deformable entities (solid particles) behave like rigid bodies. Moreover, deformable entities (e.g. bubbles) as well as rarefaction effects can be accommodated. The predictions of the method agree well with the available data for isothermal solid particles motion in the presence of walls and other particles, natural convection around a stationary particle, solid particles motion accompanied with heat transfer effects and isothermal solid particles motion under rarefied conditions. The method is used to investigate the simultaneous effects of heat transfer and rarefaction on the motion of a solid catalyst particle in an enclosure, the interaction of a solid particle and a microbubble in a flotation cell and a case with more than 1000 particles.

引用

页码：193 / 206

页数：13

共 36 条

[1]

Adamczyk Z., Adamczyk M., De Ven T.G.M.Van, Resistance coefficient of a solid sphere approaching plane and curved boundaries, J. Colloid Interface Sci, 96, pp. 204-213, (1983)

[2]

Agrawal K., Holloway W., Milioli C.C., Milioli F.E., Sundaresan S., Filtered models for scalar transport in gasparticle flows, Chem. Eng. Sci, 95, pp. 291-300, (2013)

[3]

Apte S.V., Martin M., Patankar N.A., A numerical method for fully resolved simulations (FRS) of rigid particleflow interactions in complex flows, J. Comput. Phys, 228, pp. 2712-2738, (2009)

[4]

Apte S.V., Finn J., A variable-density fictitiuos-domain method for fully resolved simulation of high-density ratio fluid-particle systems, Proc. 7th Int. Conf. Multiphase Flow (ICMF-2010, (2010)

[5]

Boussinesq J., Théorieanalytique de la Chaleur, (1903)

[6]

Brenner H., The slow motion of a sphere through a viscous fluid towards a plane surface, Chem. Eng. Sci, 16, pp. 242-251, (1961)

[7]

Darwish M., Moukalled F., Convective schemes for capturing interfaces of free-surface flows on unstructured grids, Num. Heat Transfer B, 49, pp. 19-42, (2006)

[8]

Feng Z.-G., Michaelides E.E., Heat transfer in particulate flows with Direct Numerical Simulation (DNS, T. J. Heat Mass Transfer, 52, pp. 777-786, (2009)

[9]

Glowinski R., Pan T.-W., Hesla T.I., Joseph D.D., A distributed Lagrange multiplier/fictitiuos domain method for particulate flows, T. J. Multiphase Flow, 25, pp. 755-794, (1999)

[10]

Glowinski R., Pan T.-W., Hesla T.I., Joseph D.D., Periaux J., A fictitious domain approach to the direct numerical simulation of incompressible viscous flow past moving rigid bodies - Application to particulate flow, J. Comput. Phys, 169, pp. 363-426, (2001)

← 1 2 3 4 →