DRAG REDUCTION BY SURFACTANT IN CLOSED TURBULENT FLOW

Ferhat Hadri (1) , Sylvain Guillou (1)

1 LUSAC - Laboratoire Universitaire des Sciences Appliquées de Cherbourg

Many surfactants and polymers are considered as excellent drag reducing agents. This phenomenon induces a significant head loss reduction compared to the pure solvent. In this study an aqueous solution of CTAC/NaSal (CetylTrimethyl Ammonium Chloride and Sodium Salicylate) is used in turbulent pipe flow system. Drag reduction experiments were carried out for different experimental conditions using pressure drop measurements. At the same time the spatial velocity distribution was measured and analysed using particle image velocimetry (PIV).

Mots clés: drag reduction; Pressure drop; turbulent flow; surfactant

Domaines: Sciences de l'ingénieur [physics]; Sciences de l'environnement; Physique [physics]; Matériaux; Milieux fluides et réactifs

Ferhat Hadri, Sylvain Guillou. DRAG REDUCTION BY SURFACTANT IN CLOSED TURBULENT FLOW. International Journal of Engineering Science and Technology, 2010, 2, pp.6876 - 6879. ⟨hal-02159309⟩