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논문 기본 정보

자료유형
학술저널
저자정보
Liu, Hai Long (School of Mechanical Engineering, Research Center for Aircraft Parts Technology [ReCAPT], Gyeongsang National University) Moon, Jong Sin (Tech Center, LG Chem Ltd.) Hwang, Wook Ryol (School of Mechanical Engineering, Research Center for Aircraft Parts Technology [ReCAPT], Gyeongsang National University)
저널정보
한국유변학회 Korea-Australia rheology journal Korea-Australia rheology journal 제24권 제4호
발행연도
2012.1
수록면
297 - 306 (10page)

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Flow behaviors of a non-Newtonian fluid in spherical microstructures have been studied by a direct numerical simulation. A shear-thinning (power-law) fluid through both regular and randomly packed spheres has been numerically investigated in a representative unit cell with the tri-periodic boundary condition, employing a rigorous three-dimensional finite-element scheme combined with fictitious-domain mortar-element methods. The present scheme has been validated for the classical spherical packing problems with literatures. The flow mobility of regular packing structures, including simple cubic (SC), body-centered cubic (BCC), face-centered cubic (FCC), as well as randomly packed spheres, has been investigated quantitatively by considering the amount of shear-thinning, the pressure gradient and the porosity as parameters. Furthermore, the mechanism leading to the main flow path in a highly shear-thinning fluid through randomly packed spheres has been discussed.

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