Numerical study of laminar flow and friction characteristics in narrow channels under rolling conditions using MPS method

Muhammad Abdul Basit; Wenxi Tian; Ronghua Chen; Suizheng Qiu; Guanghui Su

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자료유형: 학술저널

저자정보: Muhammad Abdul Basit Wenxi Tian Ronghua Chen Suizheng Qiu Guanghui Su

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제51권 제8호

발행연도: 2019.1

수록면: 1,886 - 1,896 (11page)

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Modern small modular nuclear reactors can be built on a barge in ocean, therefore, their ﬂow charac-teristics depend upon the ocean motions. In the present research, effect of rolling motion on ﬂow and friction characteristics of laminar ﬂow through vertical and horizontal narrow channels has been studied. A computer code has been developed using MPS method for two-dimensional Navier-Stokes equations with rolling motion force incorporated. Numerical results have been validated with the literature and have been found in good agreement. It has been found that the impact of rolling motions on ﬂow characteristics weakens with increase in ﬂow rate and ﬂuid viscosity. For vertical narrow channels, the time averaged friction coefﬁcient for vertical channels differed from steady friction coefﬁcient. Furthermore, increasing the horizontal distance from rolling pivot enhanced the ﬂow ﬂuctuations but these stayed relatively unaffected by change in vertical distance of channel from the rolling axis. For horizontal narrow channels, the ﬂow ﬂuctuations were found to be sinusoidal in nature and their magnitude was found to be dependent mainly upon gravity ﬂuctuations caused by rolling.

참고문헌 (28)

참고문헌 신청

B.H. Yan / 2017 / Review of the nuclear reactor thermal hydraulic research in ocean motions / Nuclear Engineering and Design 313:370~385

I. Ishida / 1990 / Thermal-hydraulic behavior of a marine reactor during oscillations / Nuclear Engineering and Design 120(2-3):213~225

Si-chao Tan / 2009 / Experimental and theoretical study on single-phase natural circulation flow and heat transfer under rolling motion condition / Applied Thermal Engineering 29(14-15):3160~3168

Rajashekhar Pendyala / 2008 / Convective heat transfer in single-phase flow in a vertical tube subjected to axial low frequency oscillations / Heat and Mass Transfer 44(7):857~864

Chang Wang / 2013 / Experimental study of single-phase forced circulation heat transfer in circular pipe under rolling motion / Nuclear Engineering and Design 265:348~355

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