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CFD analysis of single-phase flows inside helically coiled tubes

DSpace at IIT Bombay

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Title CFD analysis of single-phase flows inside helically coiled tubes
 
Creator JAYAKUMAR, JS
MAHAJANI, SM
MANDAL, JC
IYER, KN
VIJAYAN, PK
 
Subject convective heat-transfer
uniform wall-temperature
pressure-drop
curved pipes
laminar-flow
exchanger
region
computational fluid dynamics (cfd)
helical coil
fluid mechanics
heat transfer
numerical analysis
mathematical modelling
 
Description It has been well established that heat transfer in a helical coil is higher than that in a corresponding straight pipe However, the detailed characteristics of fluid flow and heat transfer inside helical coil is not available from the present literature This paper brings out clearly the variation of local Nusselt number along the length and circumference at the wall of a helical pipe. Movement of fluid particles in a helical pipe has been traced CFD simulations are carried out for vertically oriented helical coils by varying coil parameters such as (i) pitch circle diameter, (ii) tube pitch and (iii) pipe diameter and their influence on heat transfer has been studied. After establishing influence of these parameters, correlations for prediction of Nusselt number has been developed. A correlation to predict the local values of Nusselt number as a function of angular location of the point is also presented (C) 2009
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-23T18:09:11Z
2011-12-26T12:56:33Z
2011-12-27T05:45:25Z
2011-08-23T18:09:11Z
2011-12-26T12:56:33Z
2011-12-27T05:45:25Z
2010
 
Type Article
 
Identifier COMPUTERS & CHEMICAL ENGINEERING, 34(4), 430-446
0098-1354
http://dx.doi.org/10.1016/j.compchemeng.2009.11.008
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10602
http://hdl.handle.net/10054/10602
 
Language en