Showing items related by title, author, creator and subject.

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  Bayesian estimates of parameter variability in the k − ε turbulence model 

  Article dans une revue avec comité de lecture

  EDELING, Wouter Nico; CINNELLA, Paola; DWIGHT, Richard P.; BIJL, H. (Elsevier, 2014)

  In this paper we are concerned with obtaining estimates for the error in Reynolds-Averaged Navier-Stokes (RANS) simulations based on the Launder-Sharma k−ε turbulence closure model, for a limited class of flows. In particular ...
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  Simplex-stochastic collocation method with improved scalability 

  Article dans une revue avec comité de lecture

  EDELING, Wouter Nico; DWIGHT, Richard P.; CINNELLA, Paola (Elsevier, 2016)

  The Simplex-Stochastic Collocation (SSC) method is a robust tool used to propagate uncertain input distributions through a computer code. However, it becomes prohibitively expensive for problems with dimensions higher than ...
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  Bayesian Predictions of Reynolds-Averaged Navier–Stokes Uncertainties Using Maximum a Posteriori Estimates 

  Article dans une revue avec comité de lecture

  CINNELLA, Paola; SCHMELZER, Martin; EDELING, Wouter Nico (American Institute of Aeronautics and Astronautics, 2018)

  Computational fluid dynamics analyses of high-Reynolds-number flows mostly rely on the Reynolds-averaged Navier–Stokes equations. The associated closure models are based on multiple simplifying assumptions and involve ...
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  Data-Driven Deterministic Symbolic Regression of Nonlinear Stress-Strain Relation for RANS Turbulence Modelling 

  Communication avec acte

  SCHMELZER, Martin; DWIGHT, Richard P.; CINNELLA, Paola (American Institute of Aeronautics and Astronautics, 2018)

  This work presents developments towards a deterministic symbolic regression method to derive algebraic Reynolds-stress models for the Reynolds-Averaged Navier-Stokes (RANS) equations. The models are written as tensor ...
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  Data-Free and Data-Driven RANS Predictions with Quantified Uncertainty 

  Article dans une revue avec comité de lecture

  EDELING, Wouter Nico; IACCARINO, Gianluca; CINNELLA, Paola (Springer Verlag (Germany), 2017)

  For the purpose of estimating the epistemic model-form uncertainty in Reynolds-Averaged Navier-Stokes closures, we propose two transport equations to locally perturb the Reynolds stress tensor of a given baseline eddy-viscosity ...