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Computational Study of Deflagration to Detonation Transition in Pulse Detonation Engine Using Shchelkin Spiral by Pinku Debnath; Krishna Murari Pandey is a Engineering article available to read on EtoBox.

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Detonation combustion wave is much more energetic combustion process in pulse detonation engine combustion system. Numerous experimental, theoretical and numerical analyses have been studied in pulse detonation engine to implement in practical propulsion system. In this present computational study the simulation was carried out for deflagration flame acceleration and deflagration to detonation transition of hydrogen air combustible mixture inside the detonation tube with and without Shchelkin spiral. A three dimensional computational analysis has been done by finite volume discretization method using ANSYS Fluent 14 CFD commercial software. The LES turbulence model with second order upwind discretization scheme was adopted with standard boundary conditions for unsteady combustion wave simulations. From the computational study it was found that intensity of detonation wave velocity and dynamic pressure is higher near to the boundary of Shchelkin spiral in detonation tube. The contour plots comparisons clearly show that deflagration flame accelerates in detonation tube as present of Shchelkin spiral. The contour plots also suggest that deflagration flame velocity and pressure are les

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Author

Pinku Debnath; Krishna Murari Pandey

Publisher

Trans Tech Publications, Ltd.

Published

2015

Language

EN

Field

Engineering (Physical Sciences)