Numerical Analysis for Polymer Melt Flow in Injection Molding
スポンサーリンク
概要
- 論文の詳細を見る
A numerical method using a finite element approach is proposed to analyze the unsteady three-dimensional flow of power-law fluids with moving free surfaces. Based on the fractional step method and Rational Runge-Kutta (RRK) method for mass and momentum equations, this method is a semi-explicit scheme with unconditional numerical stability for pseudoplastic fluids. The transfer equation for the volume fraction of molten polymer is solved to calculate the moving free surface. The energy equation is divided into the transfer and diffusion equations. These equations are solved by a modified characteristic curve method and the RRK method, respectively. The calculation results are obtained by the present method for two box-shaped cavity flows. These are compared with the experimental results using a short-shot injection technique. Experimental and computational findings agree within 5% regarding location of the meltfronts.
- 一般社団法人日本機械学会の論文
- 1994-08-15
著者
-
Koizumi Makoto
Energy Research Laboratory Hitachi Ltd.
-
Sagae Katsuhiko
Energy Research Laboratory Hitachi Ltd.
-
Yamakawa Masanori
Energy Research Laboratory Hitachi Ltd.
-
KOIZUMI Makoto
Energy Research Lab., Hitachi Ltd.
関連論文
- Numerical Analysis for Polymer Melt Flow in Injection Molding
- Evaluation of heat flux concentration in tubes locally heated by high energy beams.
- Analysis of natural convection in narrow annular gaps of LMFBR.
- Three-dimensional transient heat conduction analysis with non-linear boundary conditions by boundary element method.
- Development of computer program for analyzing three-dimensional pressure field in pressure suppression system.
- Three-Dimensional Analysis Method for Sloshing Behavior of FBR and Its Application to Uni- and Multi-Vessel Type FBRs.
- Numerical solution method for prediction of heat transfer in tube bundles of large-size intermediate heat exchangers in FBR plants.
- Development of analytical model for sodium pool combustion.