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间隔扇形凹穴型微通道流动与传热的数值模拟

Keywords: 微通道,间隔段,强化传热,数值模拟

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Abstract:

用FLUENT软件模拟了三维间隔扇形凹穴型微通道流体层流流动与传热的情况,与等直径矩形微通道进行对比.结果表明:间隔扇形凹穴型微通道由于间隔段的存在降低了通道的整体压降,摩擦系数比f/f0200时通道1、2的(Nu/Nu0)/(f/f0)0.2909均大于1,说明其综合传热性能优于矩形微通道.

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