%0 Journal Article
%T Mechanism of enhanced convective heat transfer coefficient of nanofluids<br>纳米流体对流换热系数增大机理
%A Xie Hua-Qing
%A Chen Li-Fei
%A <br>谢华清
%A 陈立飞
%J 物理学报
%D 2009
%I 
%X Nanofluids have enhanced heat transfer capacity compared to conventional fluids. In the present paper, the effects of the thermophysical properties and thermal dispersion on the convective heat transfer coefficients of nanofluids have been investigated. The analytical results show that the effective thermal conductivities of a nanofluid is enhanced with the addition of nanopaticles into the base fluid. The collisions between nanoparticles, fluid molecules, and the wall of flow-tube are intensified, leading to enhanced mixing agitation and turbulence. Improved thermophysical properties and thermal dispersion result in the convective heat transfer coefficient enhancement of nanofluids.
%K nanofluids
%K heat transfer coefficient
%K thermal dispersion<br>纳米流体，
%K 换热系数，
%K 热散射
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=B1345B591CEBF9FDA24147C01C5DDD11&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=E158A972A605785F&sid=75359DB37CA6AEF5&eid=ABFF347AB1B8911C&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=0