Abstract
Effects of deceleration and mean compression on the turbulence structure of supersonic flow in a diffuser with an incoming supersonic fully-developed turbulent pipe flow are studied by means of DNS. Strong enhancement of the turbulence activity is observed when the flow undergoes deceleration. Turbulence production and pressure-strain terms in the Reynolds stress budgets are found to increase dramatically leading to increased Reynolds stresses. The central role of pressure-strain correlations in modifying the turbulence structure under these flow conditions is demonstrated.
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Ghosh, S., Friedrich, R. (2010). On the Turbulence Structure in a Supersonic Diffuser with Circular Cross-Section. In: Wagner, S., Steinmetz, M., Bode, A., Müller, M. (eds) High Performance Computing in Science and Engineering, Garching/Munich 2009. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13872-0_8
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DOI: https://doi.org/10.1007/978-3-642-13872-0_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-13871-3
Online ISBN: 978-3-642-13872-0
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