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초록· 키워드

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An experimental investigation was earned out for 4 different types of the aluminum foam heat sinks which were inserted into the annulus. The purpose of this study is to examine the feasibility of a heat sink with high performance forced convective water cooling in the annulus. The local wall temperature distribution, inlet and outlet pressures and temperatures, and heat transfer coefficients were measured for heat flux of 13.6, 18.9, 25.1, 31.4㎾/㎡ and Reynolds number ranged from 120 to 9,000.
Experimental results show that the departure from the Darcy's law is evident from the pressure loss and the friction factor is much higher while the significant enhancement in Nusselt number is obtained, and average Nusselt number of aluminum foam with high pore density is much higher than that of aluminum foam with low pore density. Correlations for the friction factor is proposed and used for design of thermal applications.

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ABSTRACT
1. Introduction
2. Experimental apparatus and test procedure
3. Results and discussion
4. Conclusions
Acknowledgement
References

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UCI(KEPA) : I410-ECN-0101-2009-553-016553129