End-to-end differentiable learning of turbulence models from indirect observations
Theoretical and Applied Mechanics Letters, 2021 The emerging push of the differentiable programming paradigm in scientific computing is conducive to training deep learning turbulence models using indirect observations.
Carlos A. Michelén Ströfer, Heng Xiao
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Numerical study of heat transfer in rectangular channels with single pin fin and pin fin-dimple [PDF]
E3S Web of Conferences, 2019 Evaluation of the heat transfer and hydraulic performance of a new pin fin-dimple cooling system in a rectangular channel shows its advantage. The performance are compared with the pin fin system ones with 3-D Reynolds averaged Navier-Stokes (RANS ...
Rogalev A. N. +4 more
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Pseudo three-dimensional numerical investigation of legacy vertical axis wind turbine configurations
Energy Conversion and Management: X, 2023 In this paper, a pseudo three-dimensional computational fluid dynamics model of Sandia’s 17-meter Vertical Axis Wind Turbine is implemented and validated against experimental data for a Tip Speed Ratio of 4.60.
Nick Ogrodnik +6 more
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EFFECT OF GEOMETRIC CONFIGURATIONS ON HYDRODYNAMIC PERFORMANCE ASSESSMENT OF A MARINE PROPELLER
Brodogradnja, 2016 The present paper deals with the effect of the geometric characteristics on the propeller hydrodynamic performances. Several propeller configurations are created by changing number of blades, expanded area and pitch ratios.
Samir. E. Belhenniche +2 more
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Evaluation of Turbulence Models in Unsteady Separation
Fluids, 2023 Unsteady separation is a phenomenon that occurs in many flows and results in increased drag, decreased lift, noise emission, and loss of efficiency or failure in flow devices.
Claire Yeo MacDougall +2 more
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Dynamo action at low magnetic Prandtl numbers: mean flow vs. fully turbulent motion [PDF]
, 2006 We compute numerically the threshold for dynamo action in Taylor-Green swirling flows. Kinematic calculations, for which the flow field is fixed to its time averaged profile, are compared to dynamical runs for which both the Navier-Stokes and the ...
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A CFD Study On the Hydrodynamic Characteristics of the Antifouling Paints [PDF]
Journal of Eta Maritime Science, 2019 This paper presents a computational fluid dynamics (CFD) approach which can be used to investigate the hydrodynamic performances of various antifouling paints.
Utku Cem KARABULUT +2 more
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Resonant Interactions in Rotating Homogeneous Three-dimensional Turbulence [PDF]
, 2004 Direct numerical simulations of three-dimensional (3D) homogeneous turbulence under rapid rigid rotation are conducted to examine the predictions of resonant wave theory for both small Rossby number and large Reynolds number.
Chen, Q. +3 more
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On Epistemological Boundaries of Turbulence Modeling Revealed through Stokes’ Reserved Stance on Reynolds’ RANS Equations [PDF]
长江科学院院报[Objective] This study reveals the epistemological rationale underlying George Gabriel Stokes’ cautious and reserved stance in his review of Osborne Reynolds’ groundbreaking 1895 paper proposing the Reynolds-Averaged Navier-Stokes (RANS) equations. While
ZHANG Xiao-feng
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Unsteady numerical estimation of the aerodynamic loads of the Krueger flap [PDF]
INCAS Bulletin, 2012 The aim of this paper is to study the unsteady aerodynamic interaction between a Krueger flap and a three-element airfoil using the finite volume method to solve the Unsteady Reynolds-Averaged Navier-Stokes equations.
Claudiu VADEAN +2 more
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