Three-dimensional evolution of flow structures in transitional circular and chevron jets

• Published in: Physics of fluids (1994) Vol. 23; no. 12; pp. 124104 - 124104-25
• Main Authors: Violato, Daniele, Scarano, Fulvio
• Format: Journal Article
• Language: English
• Published: Melville, NY American Institute of Physics 01.12.2011
• Subjects: Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); Instrumentation for fluid dynamics; Physics; Transition to turbulence; Turbulent flows, convection, and heat transfer; Test facilities; Circular jet; Notches; Tomography; Flow visualization; Particle image velocimetry; Transition flow; Experimental study; Velocity measurement; Rafter; Turbulent laminar transition

The three-dimensional behavior of flow transition in circular and 6-chevron jets at Re =5000 is investigated with experiments conducted on a free water jet by time-resolved tomographic particle image velocimetry. The emphasis is on the unsteady organization of coherent flow structures, which play a...