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ホーム アーカイブ Thermal Letter 役員 今後の会合 国際伝熱会議の集会
International Heat Transfer Conference 4
1970, 31 August - 5 September, Paris-Versailles, France

MEASUREMENT OF EDDY DIFFUSIVITY OF HEAT IN SODIUM

Get access DOI: 10.1615/IHTC4.3280
pages 1-10

要約

Measurements have been made of the eddy diffusivity of heat in a circular pipe with turbulent sodium flow. For this type of experiment a new technique has been used, in which a source of heat is injected into the central region of the pipe. From measurements of the temperature distribution in the sodium flow downstream of the injector position, the total effective thermal diffusivity is evaluated. At a Reynolds number of 8 × 104 the eddy contribution to the total thermal diffusivity was found to be such that H/α varied between 0.7 and 0.8.
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