Smoothed particle hydrodynamics simulation of shear-induced powder migration in injection moulding

被引：5

作者：

Kauzlaric, David ^{[1
,3
]}

Pastewka, Lars ^{[4
]}

Meyer, Hagen ^{[1
]}

Heldele, Richard ^{[5
]}

Schulz, Michael ^{[5
]}

Weber, Oxana ^{[5
]}

Piotter, Volker ^{[5
]}

Hausselt, Juergen ^{[2
,5
]}

Greiner, Andreas ^{[1
]}

Korvink, Jan G. ^{[1
,3
]}

机构：

[1] Univ Freiburg, Lab Simulat, D-79110 Freiburg, Germany

[2] Univ Freiburg, Dept Microsyst Engn, Lab Mat Proc Technol, D-79110 Freiburg, Germany

[3] Univ Freiburg, Freiburg Inst Adv Studies, Sch Soft Matter Res, D-79104 Freiburg, Germany

[4] Fraunhofer Inst Mech Mat IWM, D-79108 Freiburg, Germany

[5] Karlsruhe Inst Technol, Inst Mat Res 3, D-76344 Eggenstein Leopoldshafen, Germany

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2011年 / 369卷 / 1944期

关键词：

smoothed particle hydrodynamics; concentrated suspensions; segregation; injection moulding; FLOWS; SPH;

D O I：

10.1098/rsta.2011.0043

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We present the application of the smoothed particle hydrodynamics (SPH) discretization scheme to Phillips' model for shear-induced particle migration in concentrated suspensions. This model provides an evolution equation for the scalar mean volume fraction of idealized spherical solid particles of equal diameter which is discretized by the SPH formalism. In order to obtain a discrete evolution equation with exact conservation properties we treat in fact the occupied volume of the solid particles as the degree of freedom for the fluid particles. We present simulation results in two-and three-dimensional channel flow. The two-dimensional results serve as a verification by a comparison to analytic solutions. The three-dimensional results are used for a comparison with experimental measurements obtained from computer tomography of injection moulded ceramic microparts. We observe the best agreement of measurements with snapshots of the transient simulation for a ratio D(c)/D(eta) = 0.1 of the two model parameters.

引用

页码：2320 / 2328

页数：9