TY - GEN
T1 - Development of an experimental facility towards sound excitation effects on forced convection heat transfer
AU - Cukurel, Beni
AU - Selcan, Claudio
AU - Shashank, Judah
N1 - Publisher Copyright: Copyright © 2014 by ASME.
PY - 2014
Y1 - 2014
N2 - In light of the potential of acoustic excitation for heat transfer enhancement, the research effort herein is geared towards a better understanding of the underlying physical mechanisms of aero-thermal laminar and turbulent boundary layer development under the influence of directed sound excitation. An experimental measurement campaign is carried out throughout which the effects of small amplitude periodic flow oscillations on convective heat transfer in straight channels are investigated. A low velocity wind tunnel facility has been designed and built for this purpose. Measurements of convective heat transfer are conducted by means of steady wide band liquid crystal thermometry at several acoustic and aerodynamic parameters. The findings of this investigation indicate that modification of convective heat transfer by directed sound excitations is possible. Dependent on the source frequency, the net effect can be a heat transfer augmentation or a local reduction. Although the acoustically induced changes are small in magnitude, the dependence on the excitation frequency is still quantifiable beyond measurement error.
AB - In light of the potential of acoustic excitation for heat transfer enhancement, the research effort herein is geared towards a better understanding of the underlying physical mechanisms of aero-thermal laminar and turbulent boundary layer development under the influence of directed sound excitation. An experimental measurement campaign is carried out throughout which the effects of small amplitude periodic flow oscillations on convective heat transfer in straight channels are investigated. A low velocity wind tunnel facility has been designed and built for this purpose. Measurements of convective heat transfer are conducted by means of steady wide band liquid crystal thermometry at several acoustic and aerodynamic parameters. The findings of this investigation indicate that modification of convective heat transfer by directed sound excitations is possible. Dependent on the source frequency, the net effect can be a heat transfer augmentation or a local reduction. Although the acoustically induced changes are small in magnitude, the dependence on the excitation frequency is still quantifiable beyond measurement error.
UR - http://www.scopus.com/inward/record.url?scp=84916908633&partnerID=8YFLogxK
U2 - https://doi.org/10.1115/ESDA2014-20280
DO - https://doi.org/10.1115/ESDA2014-20280
M3 - منشور من مؤتمر
T3 - ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014
BT - Engineering Systems; Heat Transfer and Thermal Engineering; Materials and Tribology; Mechatronics; Robotics
T2 - ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014
Y2 - 25 July 2014 through 27 July 2014
ER -