Kun Shan University Institutional Repository:Item 987654321/9722
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    题名: 3-D Numerical and Experimental Analysis of Ribbing Phenomenon on Forward Roll Coating
    作者: P. Y. Chen
    J. Y. Jang
    贡献者: 圖書資訊館
    关键词: Ribbing
    Forward roll coating
    CFD
    VOF
    日期: 2008-11-08
    上传时间: 2010-04-19 14:18:06 (UTC+8)
    摘要: In this paper experimental and numerical methods were used to analyze the ribbing phenomenon of forward roll coating process. In experimental approach,two different test fluids, four kinds roll speed ratios and
    two gaps were tested by using a two rolls coating machine to measure the coating film thickness and the wavelength of ribbing. In numerical simulation,three-dimensional numerical model and free surface volume of fluids (VOF) module were adopted to calculate the thickness of coating film, wavelength of ribbing and pressure profile of fluid between two rigid rolls. Experimental results showed that increasing the roll speed, decreasing the roll gap and choosing fluid with high viscosity caused more ribbing on roll coating film. Numerical results were in good agreement with experimental tendency and the error between them was about 5% to 10%.
    显示于类别:[機械工程系所] SME 2008第六屆全國精密製造研討會-國際製造工程學會中華民國分會

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