CUED Publications database

DDES of a supersonic coaxial helium jet

Cocks, PAT and Dawes, WN and Cant, RS (2012) DDES of a supersonic coaxial helium jet. In: UNSPECIFIED.

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The mixing of a light gas in a scramjet combustion chamber is replicated through the simulation of a supersonic coaxial helium jet. Sensitivities of the RANS method to model constants is presented and the DDES method is employed to try and alleviate this modelling weakness. A significant delay in the shear layer transition is found to occur in the DDES simulation and it is suggested this may be due to the absence of inlet turbulence. The influence of the introduction of inflow turbulence is investigated and computational results are compared to experimental data. The influence of model constants on the DDES results are presented. © 2012 by Peter Cocks.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div A > Energy
Div A > Turbomachinery
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:36
Last Modified: 03 Aug 2017 03:09