๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A numerical study of riblet effects on laminar flow through a plane channel

โœ Scribed by Launder, B. E. ;Li, S.

Publisher
Springer
Year
1989
Tongue
English
Weight
400 KB
Volume
46
Category
Article
ISSN
0003-6994

No coin nor oath required. For personal study only.

โœฆ Synopsis

Numerical computations are reported of fully-developed flow through plane channels with knife-edge riblets. The study has covered riblet height: spacing ratios from 0.5 to 3 and riblet heights ranging from 0.1%-4.0% of the distance between the channel walls. In no case did results indicate a reduction in drag compared with the case of a smooth channel, a result that is in contrast with earlier studies. It is suggested that apparent drag reductions reported earlier in laminar flow may have arisen from the use of an insufficiently fine grid.

๐Ÿ“œ SIMILAR VOLUMES

A numerical study of flow through wavy-w
A numerical study of flow through wavy-walled channels
โœ S. Selvarajan; E. G. Tulapurkara; V. Vasanta Ram ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 281 KB ๐Ÿ‘ 2 views

A numerical procedure is developed for the analysis of flow in a channel whose walls describe a travelling wave motion. Following a perturbation method, the primitive variables are expanded in a series with the wall amplitude as the perturbation parameter. The boundary conditions are applied at the