| Sign In to gain access to subscriptions and/or personal tools. |
Piezoelectric Actuators as Synthetic Jets: Cavity Dimension EffectsVirginia Commonwealth University, 601 West Main Street, P.O. Box 843015 Richmond, Virginia 23284-3015, USA
Virginia Commonwealth University, 601 West Main Street, P.O. Box 843015 Richmond, Virginia 23284-3015, USA, kmmossi{at}vcu.edu
Virginia Commonwealth University, 601 West Main Street, P.O. Box 843015 Richmond, Virginia 23284-3015, USA
NASA Langley Research Center, 6 West Taylor St., B1293A Mail Stop 226, Hampton, VA 23681, USA
Virginia Commonwealth University, 601 West Main Street, P.O. Box 843015 Richmond, Virginia 23284-3015, USA
Effects of dimensional cavity parameters, height, and orifice diameter, on synthetic jet peak velocities are investigated numerically and experimentally, utilizing two piezoelectric composite diaphragms, Bimorph and Thunder ®. The system is modeled using a RNG
Key Words: pre-stressed piezoelectric actuators • synthetic jet • Thunder® • Bimorph.
This version was published on November
1, 2007 Journal of Intelligent Material Systems and Structures, Vol. 18, No. 11,
1175-1190 (2007) |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 |
|
|
 |
|
Sign In to gain access to subscriptions and/or personal tools.
—
model with a mesh generated using a tri-pave unstructured scheme and the diaphragms are modeled as moving boundaries. The model compares within 15% for a Bimorph but underpredicts the results for Thunder® by more than 30%. For a Bimorph, both cavity parameters are relevant with the orifice diameter having a higher effect. For Thunder® however, only orifice diameter is found to be statistically significant.