Number of the records: 1
Impingement heat transfer to the synthetic jet issuing from a nozzle with an oscillating cross section
- 1.0523708 - ÚT 2021 RIV FR eng J - Journal Article
Trávníček, Zdeněk - Antošová, Zuzana
Impingement heat transfer to the synthetic jet issuing from a nozzle with an oscillating cross section.
International Journal of Thermal Sciences. Roč. 153, July 2020 (2020), č. článku 106349. ISSN 1290-0729. E-ISSN 1778-4166
Institutional support: RVO:61388998
Keywords : synthetic jet * impinging jet * flexible nozzle
OECD category: Thermodynamics
Impact factor: 3.744, year: 2020
Method of publishing: Open access
https://www.sciencedirect.com/science/article/pii/S1290072919319714/pdfft?isDTMRedir=true&download=true
Following biomimetic principles, the novel synthetic jet actuator (SJA) is proposed. Two independent actuating systems are used (unique to this study): the diaphragm is driven electrodynamically and the nozzle walls are driven using a pair of piezoelectric transducers. Four independent experimental methods were used to quantify SJA performance. It was concluded that the momentum flux and the heat transfer rate can be enhanced by the phase delay between the diaphragm and nozzle wall cycles. The optimal effect was found at the phase shift of 270° for the ratio of the cross-section areas during the extrusion and suction of 0.74.
Permanent Link: http://hdl.handle.net/11104/0310376
Number of the records: 1