Thermohydraulics of laminar flow of viscous oil through a circular tube having axial corrugations and fitted with centre-cleared twisted-tape

2012 ◽  
Vol 38 ◽  
pp. 201-209 ◽  
Author(s):  
Sujoy Kumar Saha
Keyword(s):  
Laminar Flow ◽  
Circular Tube ◽  
Twisted Tape ◽  
Viscous Oil

Constrained Direct Optimisation of the Geometrical Parameters of a Twisted-Tape for Laminar Flow in a Circular Tube

2021 ◽  
pp. 1-17
Author(s):  
Luís G. Silva Junior ◽  
Felipe A. S. Silva ◽  
Tiago G. Faria ◽  
Martin P. Kessler ◽  
Leandro O. Salviano
Keyword(s):  
Laminar Flow ◽  
Circular Tube ◽  
Geometrical Parameters ◽  
Twisted Tape

Friction and Thermal Characteristics of Laminar Flow of Viscous Oil Through a Circular Tube Having Axial Corrugations and Fitted With Helical Screw-Tape Inserts

2012 ◽  
Vol 134 (5) ◽  
Author(s):  
Sujoy Kumar Saha ◽  
Bikram Narayan Swain ◽  
G. L. Dayanidhi
Keyword(s):  
Nusselt Number ◽  
Laminar Flow ◽  
Friction Factor ◽  
Circular Tube ◽  
Thermal Characteristics ◽  
Circular Duct ◽  
Viscous Oil ◽  
Flow Through ◽  
The Individual ◽  
Better Than

The experimental friction factor and Nusselt number data for a laminar flow through a circular duct having axial corrugation and fitted with helical screw-tape inserts have been presented. Predictive friction factor and Nusselt number correlations have also been presented. The thermohydraulic performance has been evaluated. The major findings of this experimental investigation are that the helical screw-tape inserts, in combination with axial corrugation, perform better than the individual enhancement technique acting alone for laminar flow through a circular duct.

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