対向面に波形乱流促進体を設けた水冷ヒートシンクの伝熱特性 : CFDを用いた形状最適化と実験との比較(熱工学,内燃機関,動力など)

概要

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In recent years, heat dissipation rates in personal computer, power devices and laser diodes have been increasing, and water-cooling technique is becoming to be used in electronic equipment cooling. When fins cannot be mounted on the heated base plate surface in the liquid channel because of manufacturing constraint, turbulence promoter is usually used in the liquid channel. We developed a heat sink with a wavy turbulence promoter facing heated base plate as a thermal enhancement technique in the liquid channel. The heat transfer coefficient of the base plate facing wavy turbulence promoter was 20000〜30000W / (m^2・K). The heat transfer performance of the heat sink with a wavy turbulence promoter facing heated base plate was 3 or 4 times larger than the smooth surface channel.
2007-07-25