Drag reduction with surfactants at elevated temperatures
β Scribed by A. V. Shenoy
- Book ID
- 105229396
- Publisher
- Springer-Verlag
- Year
- 1976
- Tongue
- English
- Weight
- 648 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0035-4511
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Secondary flows are always present when a turbulent Newtonian fluid flows through a square duct. We show that they are suppressed in surfactant solutions at maximum drag reduction. This result confirms the one-dimensional behaviour of such flows, which is caused by the alignment of the micelles.
We present the results of a study of turbulent drag reduction in a small circulating loop using surfactant solutions with excess counterion. In addition, these solutions were used in measurements of heat transfer, both in pipe flow and in an impinging jet. Both frictional drag and heat transfer were