## Abstract Numerical solution of steady laminar flow in helically coiled tubes of square cross section for Dean numbers from 0.8 to 307.8 reveal two regimes of secondary flow. Up to Dean number of 100, the expected secondary flow pattern appears with twin counterrotating vortices. Above Dean numbe
Numerical treatment of fully developed laminar flow in helically coiled tubes
β Scribed by L. C. Truesdell Jr.; R. J. Adler
- Publisher
- American Institute of Chemical Engineers
- Year
- 1970
- Tongue
- English
- Weight
- 611 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0001-1541
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Laminar flow in helically coiled tubes is treated numerically. Fully developed axial and secondary velocities are calculated for both circular and elliptical cross sections. Only closely wrapped helices, that is, helices with modest pitch, are considered. Ten solutions with Deans numbers up to 200 have good accuracy. Two additional solutions with Deans numbers up to 280 are approximate.
π SIMILAR VOLUMES
## Abstract The numerical method of Part I is extended to study periodic laminar flow in helically coiled tubes of square cross section oscillating sinusoidally about their helix axis. Depending on the relative strength of the wall velocity and the velocity of flow through the tube, one of three fl
## Abstract Numerical study is carried out on fully developed laminar axial flow of incompressible Newtonian fluid in irregular annuli of different crossβsectional geometry. Accurate prediction of the friction factor of this flow was obtained using highβorder finite element method. Investigations a