Synthetic Jets in Cross-Flow Part 1 Round Jet

摘要

Active flow control for enhancing propulsive and aerodynamic performance of an aircraft, over a wide range of operating conditions, is of considerable current interest. Potential benefits include alleviation of separation in inlets and ducts, stall margin improvement for turbomachinery, mixing enhancement in jet exhausts and combustors, lift enhancement and drag reduction for wings as well as noise reduction. Most flow control techniques such as vortex-generating-jets, steady or pulsed suction, bleed and oscillatory blowing require a fluid source and accompanying support hardware. In recent research synthetic jets have emerged as a promising technique since they introduce flow perturbation without a net mass injection. Thus, there is no requirement for bleed fluid and minimal demand for additional hardware.