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Rod-Bundle Thermal-Hydraulic Analysis Using Boundary-Fitted Coordinate System

机译：利用边界拟合坐标系进行Rod-Bundle热工水力分析

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This report discusses two general types of coordinate systems, analogous to rectangular and cylindrical systems. Complicated cross-sectional rod-bundle geometries, such as hexagonal fuel assemblies used in the LMFBR, can be transformed into either rectangular or cylindrical coordinates with uniform mesh. An option can be provided such that all internal fuel rods can be collapsed into slits or slabs in the transformed plane. As a result of this option, the appropriate boundary conditions of the internal rods can readily be specified. Thus, all the empirical mixing co-efficients and crossflow resistances normally associated with a rod-bundle thermal-hydraulic analysis can be eliminated, and the computational stability and accuracy can be enhanced.

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作者
Sha, W. T.; Thompson, J. F.;
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年度 1979
页码 1-46
总页数 46
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Nuclear fuel assemblies ; Mathematical models ; Coordinates ; Grids(Coordinates) ; Nuclear fuel rods;

机译：核燃料组件;数学模型;坐标;网格（坐标）;核燃料棒;

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Rod-Bundle Thermal-Hydraulic Analysis Using Boundary-Fitted Coordinate System

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