The effect of torsion on the bifurcation structure of laminar flow in a helical square duct
Journal Article
·
· Journal of Fluids Engineering
- Lund Inst. of Tech. (Sweden). Division of Heat Transfer
The laminar fully developed flow problem in a helical square duct with a finite pitch is solved numerically using the finite-volume method with the SIMPLEC algorithm. h{sup 2}-extrapolation is used to locate the limit points of the stable solution branches. Results for the friction factor are presented. For helical ducts of small pitch, or torsion, it is verified that all investigated flow properties are very similar to those for a toroidal duct with the same dimensionless curvature. A new correlation is proposed for the friction factor ratio.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 100652
- Journal Information:
- Journal of Fluids Engineering, Journal Name: Journal of Fluids Engineering Journal Issue: 2 Vol. 117; ISSN 0098-2202; ISSN JFEGA4
- Country of Publication:
- United States
- Language:
- English
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