TY - JOUR
T1 - Application of piezoelectric film in cavitation research
AU - Arndt, Roger E.A.
AU - Paul, Saurav
AU - Ellis, Christopher
PY - 1997/6
Y1 - 1997/6
N2 - A research program was conducted at the St. Anthony Falls Laboratory to investigate impulse pressures caused by the collapse of transient cavitation bubbles. The impulsive pressures associated with vibratory as well as hydrodynamic cavitation were measured. Both a stationary specimen subjected to vibratory cavitation and a hydrofoil of NACA 0015 section were instrumented with custom-made pressure transducers using polyvinylidene fluoride (PVDF) piezoelectric polymer film. These transducers provided in situ measurement of impulse pressures. A practical application of this measurement technique was demonstrated in testing the viability of air injection as a means of mitigating cavitation erosion. The high sensitivity, minimal thickness, high frequency response, high spatial resolution, and low cost of the piezoelectric transducers point to their applicability in a wide range of field measurements.
AB - A research program was conducted at the St. Anthony Falls Laboratory to investigate impulse pressures caused by the collapse of transient cavitation bubbles. The impulsive pressures associated with vibratory as well as hydrodynamic cavitation were measured. Both a stationary specimen subjected to vibratory cavitation and a hydrofoil of NACA 0015 section were instrumented with custom-made pressure transducers using polyvinylidene fluoride (PVDF) piezoelectric polymer film. These transducers provided in situ measurement of impulse pressures. A practical application of this measurement technique was demonstrated in testing the viability of air injection as a means of mitigating cavitation erosion. The high sensitivity, minimal thickness, high frequency response, high spatial resolution, and low cost of the piezoelectric transducers point to their applicability in a wide range of field measurements.
UR - http://www.scopus.com/inward/record.url?scp=0031170854&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031170854&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)0733-9429(1997)123:6(539)
DO - 10.1061/(ASCE)0733-9429(1997)123:6(539)
M3 - Article
AN - SCOPUS:0031170854
SN - 0733-9429
VL - 123
SP - 539
EP - 548
JO - American Society of Civil Engineers, Journal of the Hydraulics Division
JF - American Society of Civil Engineers, Journal of the Hydraulics Division
IS - 6
ER -