| Title |
Experiment and Analysis on the Heat Transfer Characteristics of a Channel Filled with Metal Form |
| Authors |
손영석(Young-Seok Son) ; 신지영(Jee-Young Shin) ; 조영일(Young-Il Cho) |
| Keywords |
열전달 특성 ; 발포 금속 ; 다공도 ; 기공 밀도 Heat transfer characteristics ; Metal foam ; Porosity ; Pore density |
| Abstract |
Porous media containing complex fluid passage have especially large surface area per unit volume. This study is aimed to identify the heat transfer characteristics of high-porosity metal foams in a horizontal channel. Experiment is performed under various heat flux, velocity and pore density. Nusselt number decreases with higher pore density. Metal foams shows higher heat transfer coefficients than pin-fin structure with the same porosity. This is due to the more complex flow passage and larger heat transfer area based on the structure of the metal foams. The analysis on the pin-fin structure may not be suitable to the metal foam structure but should be identified extensively through further study. |