1. Simulation of Synthetic Jets Using Unsteady Reynolds-Averaged Navier.Stokes Equations.
- Author
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Vatsa, Veer N. and Turkel, Eli
- Subjects
- *
NAVIER-Stokes equations , *JETS (Fluid dynamics) , *COMPUTER simulation , *ACTUATORS , *FLUID dynamics , *RESEARCH institutes - Abstract
An unsteady Reynolds-averaged Navier-Stokes solver is applied for the simulation of a synthetic (zero net mass flow) jet created by a single diaphragm piezoelectric actuator in quiescent air. This configuration was designated as case I for the Computational Fluid Dynamics Validation 2004 (CFDVAL2004) workshop held at Williamsburg, Virginia, in March 2004. Time-averaged and instantaneous (phase-averaged) data for this case were obtained at NASA Langley Research Center, using multiple measurement techniques. Computational results from two-dimensional simulations with one-equation Spalart-Allmaras and two-equation Menter's turbulence models are presented along with the experimental data. The effect of grid refinement, preconditioning, and time-step variation are also examined. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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