Collision modeling between two non-Brownian particles in multiphase flow

TY - JOUR

T1 - Collision modeling between two non-Brownian particles in multiphase flow

AU - Veeramani, C.

AU - Minev, P. D.

AU - Nandakumar, K.

N1 - Funding Information: This study has been supported by Discovery Grants of the National Science and Engineering Research Council of Canada (NSERC).

PY - 2009/2

Y1 - 2009/2

N2 - In this paper, we develop a collision model for particle-particle and particle-wall interaction inside fluid medium based on stereomechanical impact model. One of the important parameters identified in literature that characterizes the interaction is the Stokes number (St), which is the ratio of the particles inertia and fluid viscosity. In dry air collisions, the coefficient of restitution (e) and coefficient of friction (f) are used to describe post-collision velocities on the basis of pre-collision velocities. In the case of collisions in fluid medium, we use the experimental results that provide the co-relation between the values of e and f as a function of the Stokes number. The collision models developed here are used in our direct numerical simulation of particulate flows to verify the model with some of the well-known behavior of particle interaction in fluids. Crown

AB - In this paper, we develop a collision model for particle-particle and particle-wall interaction inside fluid medium based on stereomechanical impact model. One of the important parameters identified in literature that characterizes the interaction is the Stokes number (St), which is the ratio of the particles inertia and fluid viscosity. In dry air collisions, the coefficient of restitution (e) and coefficient of friction (f) are used to describe post-collision velocities on the basis of pre-collision velocities. In the case of collisions in fluid medium, we use the experimental results that provide the co-relation between the values of e and f as a function of the Stokes number. The collision models developed here are used in our direct numerical simulation of particulate flows to verify the model with some of the well-known behavior of particle interaction in fluids. Crown

KW - Collision

KW - Multiphase

KW - Particulate flow

KW - Stereomechanical impact

UR - http://www.scopus.com/inward/record.url?scp=56649117254&partnerID=8YFLogxK

U2 - 10.1016/j.ijthermalsci.2008.01.005

DO - 10.1016/j.ijthermalsci.2008.01.005

M3 - 文章

AN - SCOPUS:56649117254

SN - 1290-0729

VL - 48

SP - 226

EP - 233

JO - International Journal of Thermal Sciences

JF - International Journal of Thermal Sciences

IS - 2

ER -