Experimental and Numerical Investigation of Active Control of 3-D Flows

Study of synthetic jets in boundary layers

“…In addition, the oscillatory nature of SJs results in greater fluid entrainment in the near-wall region if compared to continuous jets (Cater & Soria, 2002). Extensive experimental and numerical investigations have been conducted to demonstrate the capability of SJs in delaying flow separation over various objects, including circular cylinders (Amitay et al, 1997;Crook et al, 1999;, inclined plates (Dandois et al, 2007;Zhang & Zhong, 2010), and airfoils (McCormick, 2000;Wood et al, 2009;Tang et al, 2014). These investigations revealed that, in addition to the SJ momentum coefficient and operational frequency, vortex structures induced by SJs in boundary layers are also of importance for SJ-based flow separation control.…”