Abstract
Statistics from the direct numerical simulation (DNS) of an adverse pressure gradient (APG) turbulent boundary layer (TBL) are presented. Flow simulations are performed using a TBL DNS code with the desired APG applied via a tailored farfield boundary condition. The APG TBL has a maximum momentum thickness based Reynolds number (\(Re_{\delta _2}\)) of 6000, and a near constant ratio of pressure velocity to freestream velocity, over a range of \(Re_{\delta _2}\) from 3000 to 5000. Streamwise velocity variance profiles are shown to collapse under outer velocity scaling as opposed to friction velocity scaling over this range.
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Acknowledgments
We acknowledge the funding from the Australian Research Council (ARC) and European Research Council, and computational resources provided by the NCI, iVEC and PRACE. Julio Soria gratefully acknowledges the support of an ARC Discovery Outstanding Researcher Award fellowship.
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Kitsios, V. et al. (2016). Comparison of the Direct Numerical Simulation of Zero and Low Adverse Pressure Gradient Turbulent Boundary Layers. In: Zhou, Y., Lucey, A., Liu, Y., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48868-3_26
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DOI: https://doi.org/10.1007/978-3-662-48868-3_26
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