Document Detail


Influence of pressure distribution on flow field temperature reconstruction.
MedLine Citation:
PMID:  21614105     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This research proposes an issue that has previously been omitted in flow field temperature reconstruction by optical computerized tomography (OCT). To prove that it is not reasonable to always assume an isobaric process occurs when OCT is adopted to obtain the temperature distributions of flow fields, a propane-air flame and an argon arc plasma are chosen as two practical examples for experiment. In addition, the measurement of the refractive index is achieved by moiré deflection tomography. The results indicate that the influence of pressure distribution on temperature reconstruction is a universal phenomenon for various flow fields. Hence, the condition that can be introduced to estimate when an isobaric process can no longer be assumed is presented. In addition, an equation is offered to describe the temperature reconstruction imprecision that is caused by using the supposed pressure instead of the practical pressure.
Authors:
Yun-Yun Chen; Yang Song; Zhen-Hua Li; An-Zhi He
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  50     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-05-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2145-51     Citation Subset:  IM    
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