Abstract
The shear viscosities of a turbulence drag-reducing cationic surfactant solution, cetyltrimcthyl ammonium chloride (CTAC)/sodium salicylate (NaSal) aqueous solution were measured with ARES rheometer. The concentration and temperature of the solution ranged from 5 × 10-5 to 2 × 10-4 and 20°C to 40°C, respectively. The Giesekus model was found to fit the measured shear viscosities well for different temperatures and concentrations of the surfactant solution. The model parameter values obtained by fitting were correlated with temperature at certain solution concentrations, and the relationship between drag reduction and rhcological characteristics of the surfactant solution was established. The clongational viscosities of CTAC/NaSal surfactant solution were also experimentally investigated with an opposing jet RFX rheometer.
| Original language | English |
|---|---|
| Pages (from-to) | 335-340 |
| Number of pages | 6 |
| Journal | Huagong Xuebao/Journal of Chemical Industry and Engineering (China) |
| Volume | 58 |
| Issue number | 2 |
| State | Published - Feb 2007 |
Keywords
- Drag reduction
- Giesekus model
- Rheological characteristics
- Surfactant
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