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Numerical simulations of heat transfer in an annular fuel channel with three-dimensional spacer ribs set up periodically under a fully developed turbulent flow

机译：在充分发展的湍流下周期性地建立具有三维间隔肋的环形燃料通道中的传热的数值模拟

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Thermal-hydraulic characteristics of an annular fuel channel with spacer ribs for high temperature gas-cooled reactors were analyzed numerically by three-dimensional heat transfer computations under a fully developed turbulent flow. The two-equations (kappa)-(epsilon) turbulence model was applied to the present turbulent analysis. In particular, the (kappa)-(epsilon) turbulence model constants and the turbulent Prandtl number were improved from the previous standard values proposed by Jones and Launder in order to obtain heat transfer predictions with higher accuracy. Consequently, heat transfer coefficients and friction factors in the spacer-ribbed fuel channel were predicted with sufficient accuracy in the range of Reynolds number exceeding 3000. It was clarified quantitatively from the present study that main mechanism for the heat transfer augmentation in the spacer-ribbed fuel channel was combined effects of the turbulence promoter effect by the spacer ribs and the velocity acceleration effect by a reduction in the channel cross-section. (author)

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作者
Takase, K. ; Akino, N.;
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年度 1996
页码 1-33
总页数 33
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Heat Transfer; Annular Fuel Elements; Boundary Conditions; Forced Convection; Friction Factor; Fuel Channels; HTGR Type Reactors; Hydraulics; Numerical Solution; Prandtl Number; Spacers; Thermodynamics; Turbulent Flow;

机译：传热;环形燃料元件;边界条件;强制对流;摩擦系数;燃料通道; HTGR型反应器;水力学;数值解; prandtl数;间隔物;热力学;湍流;

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专利

1. NUMERICAL SIMULATION OF TURBULENT FLUID FLOW AND HEAT TRANSFER CHARACTERISTICS IN A RECTANGULAR POROUS CHANNEL WITH PERIODICALLY SPACED HEATED BLOCKS [J] . Yang YT, Hwang ML Numerical Heat Transfer, Part A. Application: An International Journal of Computation and Methodology . 2008,第8期

机译：周期性间隔加热的矩形多孔通道内湍流流动与传热特性的数值模拟。
2. Numerical simulation of heat transfer and turbulent flow of water nanofluids copper oxide in rectangular microchannel with semi-attached rib: [J] . Omid Ali Akbari, Davood Toghraie, Arash Karimipour Advances in Mechanical Engineering . 2016,第4期

机译：半附着肋矩形微通道中水纳米流体氧化铜传热与湍流的数值模拟：
3. Numerical simulation of turbulent flow field and heat transfer in a two-dimensional channel with periodic slit ribs [J] . Tong-Miin Liou, Shin-Hui Chen, Kuan-Chen Shih International Journal of Heat and Mass Transfer . 2002,第22期

机译：带有周期性缝肋的二维通道内湍流场和传热的数值模拟
4. NUMERICAL SIMULATION OF TURBULENT HEAT TRANSFER IN AN ANNULAR FUEL CHANNEL AUGMENTED BY SPACER RIBS [C] . Kazuyuki Takase, Norio Akino Intersociety energy conversion engineering conference;IECEC . 1995

机译：隔肋增强环形燃料通道内湍流传热的数值模拟
5. Direct numerical simulations of three-dimensional flow and augmented heat transfer in a symmetrically grooved channel with constant temperature walls. [D] . Faulkner, Robert John. 1997

机译：在带有恒温壁的对称沟槽通道中三维流动和强化传热的直接数值模拟。
6. Modeling and Simulation of Turbulent Flows through a Solar Air Heater Having Square-Sectioned Transverse Rib Roughness on the Absorber Plate [O] . Anil Singh Yadav, J. L. Bhagoria 2013

机译：流经吸收器板上具有方形截面横肋粗糙度的太阳能空气加热器的湍流建模与仿真
7. Numerical simulation of heat transfer and turbulent flow of water nanofluids copper oxide in rectangular microchannel with semi-attached rib [O] . Omid Ali Akbari, Davood Toghraie, Arash Karimipour 2016

机译：半连接肋条矩形微通道内水纳米流体氧化铜传热与湍流的数值模拟
8. Numerical prediction of turbulent heat transfer augmentation in an annular fuel channel with two-dimensional square ribs [R] . Takase, K. 1996

机译：二维方肋环形燃料通道内湍流传热强化的数值预测

Numerical simulations of heat transfer in an annular fuel channel with three-dimensional spacer ribs set up periodically under a fully developed turbulent flow

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