PREDICTION OF LOCAL AND INTEGRAL TURBULENT TRANSPORT PROPERTIES FOR LIQUID-METAL HEAT TRANSFER IN EQUILATERAL TRIANGULAR ROD ARRAYS.

被引：0

作者：

Ramm, H.

Johannsen, K.

机构：

来源：

American Society of Mechanical Engineers (Paper) | 1975年 / 75 -HT-NN期

关键词：

FLOW OF FLUIDS - Turbulent - NUCLEAR REACTORS - Fuel Elements;

D O I：

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学科分类号：

摘要：

A theoretical method based on a phenomenological turbulence model has been applied to evaluate turbulent transport properties for liquid-metal heat transfer in bare equilateral triangular rod bundles. Results obtained for local distributions of thermal eddy diffusivity in the various directions are presented in terms of correlations. From a subsequent solution of the three-dimensional heat transfer problem between two characteristic interior subchannels under conditions characteristic for tracer-type mixing experiments, integral thermal mixing coefficients and thermal length scales have been evaluated.

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