CLC number: V23; V43
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2019-08-22
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Peng Wang, Chi-bing Shen. Characteristics of mixing enhancement achieved using a pulsed plasma synthetic jet in a supersonic flow[J]. Journal of Zhejiang University Science A, 2019, 20(9): 701-713.
@article{title="Characteristics of mixing enhancement achieved using a pulsed plasma synthetic jet in a supersonic flow",
author="Peng Wang, Chi-bing Shen",
journal="Journal of Zhejiang University Science A",
volume="20",
number="9",
pages="701-713",
year="2019",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1900130"
}
%0 Journal Article
%T Characteristics of mixing enhancement achieved using a pulsed plasma synthetic jet in a supersonic flow
%A Peng Wang
%A Chi-bing Shen
%J Journal of Zhejiang University SCIENCE A
%V 20
%N 9
%P 701-713
%@ 1673-565X
%D 2019
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1900130
TY - JOUR
T1 - Characteristics of mixing enhancement achieved using a pulsed plasma synthetic jet in a supersonic flow
A1 - Peng Wang
A1 - Chi-bing Shen
J0 - Journal of Zhejiang University Science A
VL - 20
IS - 9
SP - 701
EP - 713
%@ 1673-565X
Y1 - 2019
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1900130
Abstract: supersonic mixing layers exist extensively in supersonic engineering applications. The rapid mixing of fuel and oxidant at short distances is of great importance, but makes it difficult to develop efficient propulsion systems. The plasma synthetic jet (PSJ) is regarded as a promising high-speed flow control technique. The characteristics of mixing enhancement achieved using a pulsed PSJ were investigated via experiments. Results showed that the PSJ is an effective method for mixing enhancement. Nanoparticle-based planar laser scattering (NPLS) was used to obtain flow structures in three directions. The velocity fields near the PSJ actuator orifice were measured by particle image velocimetry (PIV). Indexes of the fractal dimension and mixing layer thickness were applied to estimate the effect of the PSJ actuator on the supersonic mixing layers. The large-scale vortex structures induced by the pulsed PSJ in the supersonic mixing layers were successfully captured by NPLS. The effect of the PSJ on the supersonic mixing layers was remarkable. The mixing layer thickness under perturbation was larger than that under no perturbation in the downstream. The distribution of the fractal dimension suggests that perturbation of the PSJ cannot improve the fractal dimension values of the fully developed supersonic mixing layers.
This work conerns an application of the plasma syhthetic jet (PSJ) to supersonic mixing layer. By NPLS technique, a primary experimental investigation has been carried out in a supersonic wind tunnel to illustrate the effectiveness of PSJ on the enhancement of mixing. So far as I know, the topic appears new and the results are interesting.
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