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| Approximate velocity scale for primary and secondary dual-inlet side-dump flows
Seung-chai Jung
The Journal of Mechanical Science and Technology, vol. 23, no. 3, pp.823-835, 2009
Abstract : Effects of the bulk inlet velocity on the characteristics of dual-inlet side-dump flows are numerically investigated.
Non-reacting subsonic turbulent flow is solved by a preconditioned Reynolds-averaged Navier-Stokes equation system
with low-Reynolds number k −ε turbulence model. The numerical method is properly validated with measured
velocity distributions in the head dome and the combustor. With substantial increase in the bulk inlet velocity, general
profiles of essential primary and secondary flows normalized by the bulk inlet velocity are quantitatively invariant to
the changes in the bulk inlet velocity.
Keyword : Ramjet combustor; Velocity scale; Secondary flow; Turbulent mixing |
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