K. A. Damodarant

Cylinders (shapes)

Flow measurement

Jet engines

Mixing

Nozzles

Supersonic aerodynamics

Vortex flow

AIR PUMPING

CONVENTIONAL NOZZLES

PETAL NOZZLES

SHROUD LENGTH

AIR EJECTORS

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Supersonic-ejector characteristics using a Petal nozzle

Journal of Propulsion and Power

In recent times, high-speed, airbreathing propulsion research has been receiving considerable attention all over the world. This has come about primarily because of renewed interest in the development of reusable launch vehicles employing multimode propulsive systems. The scramjet, a critical subsystem of these composite engines, is still in the developmental stage. A crucial problem in this development is the realization of rapid mixing and heat release with minimum pressure losses inside the supersonic combustor. Recently, a new mixing technique for high-speed flows employing large-scale axial vortices was developed. This involved the use of a lobed supersonic primary nozzle referred to as the petal nozzle. The possibility of applying this novel mixing mechanism to piloted supersonic combustors was examined in this work. Results showed that rapid mixing took place between the hot primary (pilot) stream and the cold secondary airstream when the petal nozzle was used. Piloted secondary (supersonic) combustion of kerosene and acetylene was achieved with satisfactory efficiencies.

Experimental studies on piloted supersonic combustion using the petal nozzle

Supersonic nozzle mixer ejector

25th AIAA Aerospace Sciences Meeting

Flow structure in a periodic axial vortex array

Journal of Sound and Vibration

The role of screech tones in mixing of an underexpanded rectangular jet

16th Joint Propulsion Conference

Influence of pressure driven secondary flows on the behavior of turbofan forced mixers

Journal of Aircraft

Evaluation of Hypermixing for Thrust Augmenting Ejectors

Supersonic-ejector characteristics using a petal nozzle

Journal	Journal of Propulsion and Power
ISSN	07484658
Open Access	No