Parametric Study on Steady Micro-Jet Actuators for Control of Unsteady Shock Motion in a Compression Induced Interaction at Mach 2.0
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Parametric Study on Steady Micro-Jet Actuators for Control of Unsteady Shock Motion in a Compression Induced Interaction at Mach 2.0
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| Creator |
Manisankar, C
Verma, SB |
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| Subject |
Aerodynamics
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| Description |
Experiments were carried out on a compression corner at Mach number 2.0 to identify suitable flow control devices which can effectively control the amplitude of shock unsteadiness associated with low frequency oscillations of the separation shock. These interactions always lead to increased aerodynamic drag, heat transfer and unsteady pressure loads hence these interactions are important design factors. Majority of the early work done on this field were focused to identify the source behind such low frequency oscillations. One of the accepted model for source of unsteadiness is due to abrupt increase of pressure ratio across the oblique shock causes the mass of the fluid reversed at the reattachment point to be in imbalance with the scavenged mass in the separation region resulting in a breathing action wherein mass is injected during one pulse and ejected out during the other which creates low frequency oscillation of the separation shock which exhibits wide range of temporal and spatial scales. Therefore flow control device is suggested as the important design issue to control the unsteadiness.
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| Date |
2015
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| Type |
Conference or Workshop Item
PeerReviewed |
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| Identifier |
Manisankar, C and Verma, SB (2015) Parametric Study on Steady Micro-Jet Actuators for Control of Unsteady Shock Motion in a Compression Induced Interaction at Mach 2.0. In: 7th Symposium on Applied Aerodynamics And Design of Aerospace Vehicles (SAROD-2015) , 03-12-2015, Vikram Sarabhai Space Centre, Trivandrum.
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| Relation |
http://nal-ir.nal.res.in/12496/
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