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estimation of instantaneous heat transfer coefficients for a direct-injection stratified-charge rotary engineThe main objective of this report was to derive equations to estimate heat transfer coefficients in both the combustion chamber and coolant pasage of a rotary engine. This was accomplished by making detailed temperature and pressure measurements in a direct-injection stratified-charge rotary engine under a range of conditions. For each sppecific measurement point, the local physical properties of the fluids were calculated. Then an empirical correlation of the coefficients was derived by using a multiple regression program. This correlation expresses the Nusselt number as a function of the Prandtl number and Reynolds number.
Document ID
19870061513
Document Type
Conference Paper
Authors
Lee, C. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Addy, H. E.
(NASA Lewis Research Center Cleveland, OH, United States)
Bond, T. H.
(NASA Lewis Research Center Cleveland, OH, United States)
Chun, K. S.
(NASA Lewis Research Center Cleveland, OH, United States)
Lu, C. Y.
(Cleveland State University OH, United States)
Date Acquired
August 13, 2013
Publication Date
February 1, 1987
Subject Category
MECHANICAL ENGINEERING
Report/Patent Number
SAE PAPER 870444
Distribution Limits
Public
Copyright
Other