DOI码：10.1002/htj.21190
发表刊物：Heat Transfer—Asian Research
关键字：natural convection, mixed nanofluid, volume fraction, Nusselt number
摘要：A new mixed nanofluid (Cu/diamond–gallium [Cu/diamond–Ga] nanofluid) is proposed, and the mass ratio of Cu nanoparticles and diamond nanoparticles in the new mixed nanofluid is 10:1. The natural convection heat transfer of Cu/diamond– Ga nanofluid, Cu–gallium (Cu–Ga) nanofluid, and liquid metal gallium with different volume fractions in a rectangular enclosure is investigated by a single-phase model in this paper. The effects of temperature difference, nanoparticle volume fraction and the kinds of nanofluid on the natural convection heat transfer are discussed. The natural convection heat transfer of the three kinds of fluids is compared. It is found that Nusselt numbers of the Cu/diamond–Ga nanofluid along with X direction increaseswith the nanoparticle volume fraction and temperature difference. Cu/diamond–Ga nanofluid can enhance the heat transfer by 73.0% and 9.7% at low-temperature difference (ΔT = 1 K) compared with liquid metal gallium and Cu–Ga nanofluid, respectively. It also can enhance the heat transfer by 85.9% and 5.2% at high-temperature difference (ΔT = 11 K) compared with liquid metal gallium and Cu–Ga nanofluid, respectively
论文类型：期刊论文
学科门类：工学
一级学科：动力工程及工程热物理
文献类型：J
是否译文：否
发表时间：2015-09-17
收录刊物：EI