An analysis tool for boundary layer and correlation-based transition onset assessment on generic geometries

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Abstract

Today’s CFD simulations tools and the related computational resources provide engineers an enormously high-fidelity design tool to generate an enormous aerodynamic and aerothermal database, for both the laminar and turbulent state, in a short time span. However, transitional flow simulation is still in its infancy that one still needs to rely on practical engineering correlations composed of typical boundary-layer parameters. This work describes the methodology to extract necessary parameters and profile information of the local boundary layer from any vast simulation dataset in an automatic fashion, allowing to apply a huge variety of best-practise correlations for transition prediction relying on local quantities on any type of 3D geometric body. The validation on a simple test case of a flat plate and application to a representative and complex use cases with the geometry of the HEXAFLY-INT hypersonic glider demonstrate the potential of this engineering methodology.

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Hoffmann, J. P., Van den Eynde, J., & Steelant, J. (2023, November 1). An analysis tool for boundary layer and correlation-based transition onset assessment on generic geometries. CEAS Space Journal. Springer. https://doi.org/10.1007/s12567-023-00507-x

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