Fluid Dynamics
Lead Research Organisation:
University of Southampton
Department Name: Faculty of Engineering & the Environment
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Publications
Jankee G
(2019)
Influence of internal orifice geometry on synthetic jet performance
in Experiments in Fluids
Jankee G
(2020)
Comparison between object and image plane cross-correlation for stereoscopic PIV in the presence of pixel locking
in Experiments in Fluids
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509358/1 | 30/09/2015 | 30/03/2021 | |||
| 1803436 | Studentship | EP/N509358/1 | 30/09/2016 | 29/06/2020 | Girish Jankee |
| Description | This grant has so far enabled the development of a new design for the internal geometry of the orifice of a synthetic jet actuator. A methodology has been proposed which describe how to design more effective actuators. Such a breakthrough can lead to more efficient and higher performance-achieving actuators. Additionally, a study has been carried out to improve the accuracy of the measurement technique used in the experiments. For stereoscopic particle image velocimetry (SPIV), the bias error known has pixel locking has been mitigated by performing the cross correlation of frames in the image plane. Such a process has also allowed elimination of Moire fringes. Such high artifacts have been found to contaminate the mean statistics of PIV datasets. Overall, the ability to simultaneously filter out high frequency artifacts in the mean velocities and deal with pixel locking contamination in the root mean square (RMS) velocities advocates for a pervasive application of the image plane cross-correlation technique in SPIV. |
| Exploitation Route | The results can lead to lower energy consumption actuators being developed which can be useful in the aerospace industry (flow separation delay, stall control, drag reduction) as well as in electronic devices where impingement cooling due to synthetic jet actuators is important. Auxiliary repercussions of this study lead to enhanced mixing and heat transfer at a lower operational cost. Pixel locking and Moire fringes correction methodology can be applied a posteriori to contaminated datasets and improve the accuracy of results obtained from PIV processing. |
| Sectors | Aerospace Defence and Marine Energy Manufacturing including Industrial Biotechology Transport |