Numerical Study on Transverse Jet Mixing Enhanced by High Frequency Energy Deposition

Zilin Cai, Feng Gao, Hongyu Wang (), Cenrui Ma and Thomas Yang
Additional contact information
Zilin Cai: School of Air and Missile Defense, Air Force Engineering University, Xi’an 710051, China
Feng Gao: School of Air and Missile Defense, Air Force Engineering University, Xi’an 710051, China
Hongyu Wang: Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China
Cenrui Ma: School of Air and Missile Defense, Air Force Engineering University, Xi’an 710051, China
Thomas Yang: College of Electronics and Information, Darmstadt University of Technology, 65527 Darmstadt, Germany

Energies, 2022, vol. 15, issue 21, 1-19

Abstract: Supersonic incoming flow has a large momentum, which makes it difficult for transverse jets to have a large penetration depth due to the strong compression of the incoming flow. This impacts the mixing efficiency of the jet in the supersonic combustor. This paper proposes a method to improve the mixing efficiency of a rectangular flow field model using pulsed energy deposition, which is verified numerically. In the simulations, the Navier–Stokes equations with an energy source are solved to simulate the effects of energy deposition with various distributions on the fuel mixture. The results show that the energy deposition increases the turbulent kinetic energy, which enlarges the scale of the flow vortex and improves the fuel mixing performance. The energy deposition is distributed upstream and significantly improves the mixing performance. Energy deposition can improve the penetration depth of fuel, which is more significant when the energy deposition is distributed downstream of the jet orifice. The energy deposition also slightly reduces the total pressure recovery coefficient. In general, an energy deposition that is distributed upstream of the jet has the best effect on the mixing efficiency.

Keywords: plasma flow control; pulsed energy deposition; mixing enhancement; transverse jet (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/21/8264/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/21/8264/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:21:p:8264-:d:963984

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().