dc.contributor.advisor | Zhang, Yuwen, 1965- | eng |
dc.contributor.author | Shao, Wei, 1986- | eng |
dc.date.issued | 2010 | eng |
dc.date.submitted | 2010 Spring | eng |
dc.description | Title from PDF of title page (University of Missouri--Columbia, viewed on June 18, 2010). | eng |
dc.description | The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. | eng |
dc.description | Thesis advisor: Dr. Yuwen Zhang. | eng |
dc.description | M.S. University of Missouri--Columbia 2010. | eng |
dc.description.abstract | An advanced physical and theoretical model of a U-shaped minichannel - a building block of an Oscillating Heat Pipe (OHP) - has been developed step by step. a) The gravity and pressure loss at the bend are included in the momentum equation of the liquid slug. The sensible heat transfer coefficient between the liquid slug and the minichannel wall are obtained by analytical solution for laminar liquid flow and by empirical correlations for turbulent liquid flow. Besides, the effect of axial step variation of surface temperature is considered by using method of superposition to calculate the sensible heat transfer coefficients between the liquid slug and the minichannel wall in laminar region. The evaporation and condensation heat transfer coefficients are simply assumed. b) Capillary force and inclination angle are added into the momentum equation of the liquid slug to investigate the surface tension and gravity effects on the oscillatory flow and heat transfer in an OHP with different inner diameters and orientations. The results show that gravity effect hinders the performance of top heat mode OHP while aids the operation of bottom heat mode OHP. Comparisons between the cases with surface tension and without surface tension indicate that the effect of surface tension on the performance of OHP is negligible. c) Film evaporation and condensation models are consistently specified to calculate latent heat transfer happened in the evaporator and condenser. Precise prediction of latent heat transfer due to phase change can be given by current heat transfer model. | eng |
dc.description.bibref | Includes bibliographical references. | eng |
dc.format.extent | xii, 84 pages | eng |
dc.identifier.merlin | b79430399 | eng |
dc.identifier.oclc | 649029467 | eng |
dc.identifier.uri | http://hdl.handle.net/10355/8072 | |
dc.identifier.uri | https://doi.org/10.32469/10355/8072 | eng |
dc.language | English | eng |
dc.publisher | University of Missouri--Columbia | eng |
dc.relation.ispartofcommunity | University of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2010 Theses | eng |
dc.rights | OpenAccess. | eng |
dc.rights.license | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License. | |
dc.subject | Oscillating heat pipe | eng |
dc.subject.lcsh | Heat pipes | eng |
dc.subject.lcsh | Oscillations | eng |
dc.subject.lcsh | Laminar flow | eng |
dc.subject.lcsh | Fluid dynamics | eng |
dc.subject.lcsh | Evaporation, Latent heat of | eng |
dc.title | Analysis of oscillatory flow and heat transfer in an oscillating heat pipe | eng |
dc.type | Thesis | eng |
thesis.degree.discipline | Mechanical and aerospace engineering (MU) | eng |
thesis.degree.grantor | University of Missouri--Columbia | eng |
thesis.degree.level | Masters | eng |
thesis.degree.name | M.S. | eng |