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对微射流阵列的流动和换热特性进行了数值模拟研究。以液态水为冷却工质,通过改变射流雷诺数Re、射流孔间距x/d、射流高度z/d,研究了上述参数对微射流阵列特性的影响。结果表明:微射流换热效果随着射流雷诺数的增大而增强,随着射流高度的增大而减弱,且在射流孔间距为最适值时达到最佳换热效果;射流流体流经设备的压降随射流雷诺数的增大而增大,随射流高度的增大而减小,且射流孔间距的变化对压降的影响不明显。
The flow and heat transfer characteristics of the micro-jet array were numerically simulated. The effect of the above parameters on the characteristics of the micro-jet array was studied by changing the Reynolds number Re, the jet hole spacing x / d and the jet height z / d with liquid water as the cooling medium. The results show that the effect of micro-jet heat transfer increases with the Reynolds number of the jet, decreases with the increase of the jet height, and achieves the best heat transfer effect when the jet hole spacing is the optimum value. The jet fluid flows through the device The pressure drop increases with the increase of Reynolds number of jet, decreases with the increase of jet height, and the change of jet orifice spacing has no obvious effect on pressure drop.