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TECHNICAL PAPERS

Numerical Simulation of Polymer Flow Into a Cylindrical Cavity

[+] Author and Article Information
Amit Kumar, P. S. Ghoshdastidar

Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, U.P.208016 India

J. Fluids Eng 124(1), 251-262 (Oct 15, 2001) (12 pages) doi:10.1115/1.1445796 History: Received December 06, 1999; Revised October 15, 2001
Copyright © 2002 by ASME
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References

Figures

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Cylindrical cavity to be filled by polymer melt
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The computational domain for isothermal filling
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The grid and the grid points in the computational domain
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The half physical domain for nonisothermal filling
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The position of advancing melt front as a function of time for constant injection pressure isothermal filling
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Flow rate versus distance for constant injection pressure isothermal filling
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Half melt velocity profile at various z-locations for constant injection pressure isothermal filling
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Plot of injection pressure versus time for constant flow rate isothermal filling
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Comparison of injection pressure versus time for nonisothermal and isothermal filling at constant flow rate
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Melt temperature fields at various z-locations for Q=0.515×10−4 m3/s for nonisothermal flow (case (iii))
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Melt temperature fields at various z-locations for Q=0.107×10−4 m3/s for nonisothermal flow (case (iii))
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Frozen skin layers for various flow rates for nonisothermal flow (case (iii))
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Pressure distribution in the cavity after filling for nonisothermal flow (case (iii))
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Melt velocity profiles at different locations during filling for nonisothermal flow (case (iii))
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Grid independence test for one case of nonisothermal filling of the cavity (Q=0.515×10−4 m3/s,Ti=2000 C,Tmold=600 C,z=0.0113 m, i.e., at 4.448% of the total length of the cavity)

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