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Digitale Medien

Surface tension of pentafluoroethane (HFC-125) (1994)

Liu, M. F. ; Han, L. Z. ; Zhu, M. S.

Springer

International journal of thermophysics 15 (1994), S. 941-948

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ISSN: 1572-9567

Schlagwort(e): capillary rise ; HFC-125 ; refrigerant ; surface tension

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract A set of accurate surface-tension data for HFC-125 has been obtained experimentally with both an absolute capillary rise technique and a differential capillary rise technique in the temperature range of 233.15–333.15 K. The purity of the experimental HFC-125 sample is 99.98 wt%. The two sets of experimental results with an absolute capillary rise method agree well with each other and, also, with the experimental results with a differential capillary rise method. The absolute deviations of experimental results with these two methods are within 0.01 mN · m−1. The relative deviation are within 0.2%. A van der Waals surface-tension correlation is also proposed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01447104

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Digitale Medien

Flow simulation in molds with preplaced fiber mats (1991)

Young, W. B. ; Fong, K. Han. L. H. ; Lee, L. James

Brookfield, Conn. : Wiley-Blackwell

Polymer Composites 12 (1991), S. 391-403

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Details

ISSN: 0272-8397

Schlagwort(e): Chemistry ; Chemical Engineering

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Maschinenbau

Notizen: The primary goal of this study was to develop 2-D and 3-D computer simulation schemes for the mold filling processes of structural reaction injection molding (SRIM) and resin transfer molding (RTM) under isothermal conditions. The developed computer code was able to simulate the mold filling in molds with complicated geometry, Experiments were also carried out based on flow vitalizations. Experimental results were compared with the numerical simulations.

Zusätzliches Material: 11 Ill.