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Zhaoju Qin

MICROSCALE FLOW AND HEAT TRANSFER BETWEEN THE ROTOR AND THE FLANK FOR ROTARY ENGINE

ABSTRACT
This paper is to investigate microscale flow and transfer between the rotor and the flank for rotary engine. The rotor and flank are simplified to two disks in order to study flow field and temperature field conveniently. The paper takes analysis of steady laminar flow and heat transfer between two disks separated by a gas-filled gap due to machining tolerance. A 3-D multi-physical coupling model is used, involving velocity slip, temperature jump, rarefaction, and dissipation. A solution based on commercial code COMSOL is derived and the results are used to illustrate the effects to velocity field, temperature distribution, disks' torque, and Nusselt number based on the governing parameters. The paper also investigates the effects of different modified Knudsen number on flow field and temperature field.
KEYWORDS
rotating disks, velocity slip, temperature jump, rotary eninge
PAPER SUBMITTED: 2019-02-25
PAPER REVISED: 2019-07-23
PAPER ACCEPTED: 2019-07-31
PUBLISHED ONLINE: 2019-09-15
DOI REFERENCE: https://doi.org/10.2298/TSCI190225330Q
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 1, PAGES [229 - 241]
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Microscale flow and heat transfer between the rotor and the flank for rotary engine

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence