LAPSE:2021.0685v1
Published Article
LAPSE:2021.0685v1
Experimental Study on Ramp Shock Wave Control in Ma3 Supersonic Flow Using Two-Electrode SparkJet Actuator
July 29, 2021
The control of a shock wave produced by a ramp (ramp shock) in Ma3 supersonic flow using a two-electrode SparkJet (SPJ) actuator in a single-pulse mode is studied experimentally. Except for schlieren images of the interaction process of SPJ with the flow field, a dynamic pressure measurement method is also used in the analysis of shock wave control. In a typical experimental case, under the control of single-pulsed SPJ, the characteristic of ramp shock changes from “short-term local upstream motion” in the initial stage to “long-term whole downstream motion” in the later stage. The angle and position of the ramp shock changes significantly in the whole control process. In addition, the dynamic pressure measurement result shows that the ramp pressure is reduced by a maximum of 79% compared to that in the base flow field, which indicates that the ramp shock is significantly weakened by SPJ. The effects of some parameters on the control effect of SPJ on the ramp shock are investigated and analyzed in detail. The increase in discharge capacitance helps to improve the control effect of SPJ on the ramp shock. However, the control effect of the SPJ actuator with medium exit diameter is better than that with a too small or too large one. In addition, when the SPJ exit is located in the separation zone and outside, the change in the ramp shock shows significant differences, but the control effect in the case of medium ramp distance is better when the SPJ exit is located outside the separation zone.
Record ID
Keywords
dynamic pressure measurement, schlieren images, shock wave control, SparkJet actuator, supersonic flow
Subject
Suggested Citation
Xie W, Luo Z, Zhou Y, Wang L, Peng W, Gao T. Experimental Study on Ramp Shock Wave Control in Ma3 Supersonic Flow Using Two-Electrode SparkJet Actuator. (2021). LAPSE:2021.0685v1
Author Affiliations
Xie W: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Luo Z: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China [ORCID]
Zhou Y: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Wang L: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Peng W: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Gao T: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Luo Z: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China [ORCID]
Zhou Y: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Wang L: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Peng W: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Gao T: Department of Applied Mechanics, School of Aerospace Sciences, National University of Defense Technology, Changsha 410073, China
Journal Name
Processes
Volume
8
Issue
12
Article Number
E1679
Year
2020
Publication Date
2020-12-19
ISSN
2227-9717
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Original Submission
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PII: pr8121679, Publication Type: Journal Article
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Published Article
LAPSE:2021.0685v1
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https://doi.org/10.3390/pr8121679
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[v1] (Original Submission)
Jul 29, 2021
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Jul 29, 2021
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Record Owner
Calvin Tsay
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