스파이럴 채널을 가진 초소형 점성 펌프의 Navier-Stokes 해석

Title
스파이럴 채널을 가진 초소형 점성 펌프의 Navier-Stokes 해석
Other Titles
NAVIER-STOKES SIMULATION OF A VISCOUS MICRO PUMP WITH A SPIRAL CHANNEL
Author(s)
강동진서주형[서주형]
Keywords
마이크로펌프(micropump); 점섬펌프(viscous pump); 끝 간격(tip clearance); 유량(flow rate); 압력부하(pressure load)
Issue Date
201103
Publisher
한국전산유체공학회
Citation
한국전산유체공학회지, v.16, no.1, pp.90 - 95
Abstract
The Navier-Stokes equations are solved to study the flow characteristics of a micro viscous pump. The viscous micropump is consisted of a stationary disk with a spiral shaped channel and a rotating disk. A simple geometrical model for the tip clearance is proposed and validated by comparing computed flow rate with corresponding experimental data. Present numerical solutions show satisfactory agreement with the corresponding experimental data. The tip clearance effect is found to become significant as the rotational speed increases. As the pressure load increases, a reversed flow region is seen to form near the stationary disk. The height of the channel is shown to be optimized in terms of the flow rate for a given rotational speed and pressure load. The optimal height of the channel becomes small as the rotational speed decreases or the pressure load increases. The flow rate of the pump is found to be in proportion to the width of channel.
URI
http://hdl.handle.net/YU.REPOSITORY/25425
ISSN
1598-6071
Appears in Collections:
공과대학 > 기계공학부 > Articles
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