Heat transfer enhancement on a concave surface using sweeping impinging jets: Comparison of vortex-based and conventional oscillators

Rezaei, Mohammad; Nili-Ahmadabadi, Mahdi; Tavakoli, Mehdi; Joulaei, Amir; Ha, Man Yeong

doi:10.1016/j.csite.2024.104738

Case Studies in Thermal Engineering

2024

DOI: 10.1016/j.csite.2024.104738

|View full text |Cite

Heat transfer enhancement on a concave surface using sweeping impinging jets: Comparison of vortex-based and conventional oscillators

Mohammad Rezaei,

Mahdi Nili-Ahmadabadi,

Mehdi Tavakoli

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Large-eddy simulations of the cavitation impact performance in reflux self-excited oscillating nozzles

Wang,

Fan,

Fang

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

Existing research on reflux self-excited oscillating nozzles (RSONs) has primarily focused on flow drag reduction and combustion mixing, with relatively little investigation of their impact on cavitation. This study employs the large-eddy simulation framework to conduct numerical simulations of the three-dimensional cavitating jet generated by an RSON. We analyze the impact of vortex dissipation and the nozzle throat structure on the cavitation phenomena and the evolution of vortex structures. Further analysis examines the impact pressure, pulse frequency, cavitation phenomena, and distribution patterns of vortex structures in the flow field for RSONs and an organ pipe nozzle under inlet pressures of 7, 14, and 21 MPa. The results show that the dissipation of spanwise vortices is jointly determined by the shape of the nozzle outlet and the intensity of vortex structures, with nozzles featuring a reflux structure producing faster dissipation. The main frequency of jet pulsation initially increases and then decreases with the development of the jet. The impact pressure of the jet is closely related to the intensity of the cavitation cloud and the location of its collapse. The RSON with a throat structure produces the maximum impact pressure near the nozzle outlet. This study deepens our understanding of the RSON flow field characteristics and provides a scientific basis for RSON applications in a broad range of fields.

show abstract

Large-eddy simulations of the cavitation impact performance in reflux self-excited oscillating nozzles

Wang,

Fan,

Fang

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Heat transfer enhancement on a concave surface using sweeping impinging jets: Comparison of vortex-based and conventional oscillators

Cited by 1 publication

References 44 publications

Large-eddy simulations of the cavitation impact performance in reflux self-excited oscillating nozzles

Large-eddy simulations of the cavitation impact performance in reflux self-excited oscillating nozzles

Contact Info

Product

Resources

About