Technologies

Astronomy & Space Sciences

Title:

Deflagration-to-Detonation Transition Studies in a Detonation Tube Facility

Area:

Astronomy & Space Sciences

Focus Area:

Aerospace Engineering

Status:

Under Development

Social Benefits:

The project being undertaken by ISRO in collaboration with academia is directly or indirectly beneficial to the society.

Developing Agency:

Indian Institute of Technology (IIT) Kanpur, Uttar Pradesh

Brief Description

Description :

The aim of the study is to investigate the mechanism of deflagration-to-detonation transition in a detonation tube facility in the presence and absence of ignition promoters like ozone. The factors governing such a transition will be studied for hydrogen-oxygen-diluent and ethyleneoxygen-diluent mixtures where the effect of congestion on this transition will be quantified. The effect of ignition promoters on the ignition kinetics of a detonation wave structure will be investigated where relevant length and time scales associated with a ZND detonation structure will be quantified for hydrogen-oxygen-diluent and ethylene-oxygen-diluent mixtures.It is also proposed to carry out a series of thoughtful and well-planned experiments in a detonation tube to investigate the phenomenon of DDT. The primary goal here is to obtain a deeper understanding of the DDT phenomenon in scramjets and detonation-based rocket engines. Another aim of this work is to study the effect of ignition promoters like ozone on DDT lengths. The fuel sensitization experiments will be carried out in a detonation tube facility to investigate the effects of fuel sensitization on detonation wave structure and DDT lengths.

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