Three-dimensional simulation of the rolling of a saturated fibro-porous media

Loughran, J.G., and Kannapiran, Arasu (2005) Three-dimensional simulation of the rolling of a saturated fibro-porous media. Finite Elements in Analysis and Design, 42 (1). pp. 90-104.

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This paper describes recent advances made in computational modelling of the sugar cane liquid extraction process. The saturated fibro-porous material is rolled between circumferentially grooved rolls, which enhance frictional grip and provide a low-resistance path for liquid flow during the extraction process. Previously reported two-dimensional (2D) computational models, account for the large deformation of the porous material by solving the fully coupled governing fibre stress and fluid-flow equations using finite element techniques. While the 2D simulations provide much insight into the overarching cause-effect relationships, predictions of mechanical quantities such as roll separating force and particularly torque as a function of roll speed and degree of compression are not satisfactory for industrial use. It is considered that the unsatisfactory response in roll torque prediction may be due to the stress levels that exist between the groove tips and roots which have been largely neglected in the geometrically simplified 2D model. This paper gives results for both two- and three-dimensional finite element models and highlights their strengths and weaknesses in predicting key milling parameters.

Item ID: 14019
Item Type: Article (Research - C1)
ISSN: 1872-6925
Keywords: 3D modelling; constitutive laws; grooving effects; plane strain model; porous material
Date Deposited: 01 Dec 2010 01:52
FoR Codes: 09 ENGINEERING > 0999 Other Engineering > 099901 Agricultural Engineering @ 50%
09 ENGINEERING > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified @ 40%
09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 10%
SEO Codes: 82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8203 Industrial Crops > 820304 Sugar @ 60%
86 MANUFACTURING > 8614 Machinery and Equipment > 861401 Agricultural Machinery and Equipment @ 40%
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