Indexed by:期刊论文

Date of Publication:2014-04-03

Journal:NUMERICAL HEAT TRANSFER PART A-APPLICATIONS

Included Journals:SCIE、EI、Scopus

Volume:65

Issue:4

Page Number:378-400

ISSN No.:1040-7782

Abstract:Copper and diamond nanoparticles with diameters of 50nm are added into conventional engine oil, respectively, to preparetwo new types of nanofluids, which are further used as the heat transfer medium for the piston cooling gallery. Detailed oil flow and heat transfer processes of copper-oil and diamond-oil nanofluids, with the volume fractions of 1%, 2%, and 3% have been numerically investigated through a coupled VOF/Level-Set method. Research on oil fill ratio (OFR) and heat transfer coefficient (HTC) distributions at different crank angles has been conducted under the engine operation speed of 2000r/min.