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Scaling Relations and Self-Similarity of 3-Dimensional Reynolds-Averaged Navier-Stokes Equations [PDF]
Scientific Reports, 2017 Scaling conditions to achieve self-similar solutions of 3-Dimensional (3D) Reynolds-Averaged Navier-Stokes Equations, as an initial and boundary value problem, are obtained by utilizing Lie Group of Point Scaling Transformations.
Ali Ercan, M. Levent Kavvas
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Implementation of the Methodology of Coupled Modelling of Aerodynamics and Strength to Determine the Onset Speed of the Bending-Torsional Flutter of the Wing Console [PDF]
E3S Web of Conferences, 2023 Time-domain motion simulations using the averaged Navier-Stokes Euler and Reynolds equations were performed for an AGARD 445.6 wing in transonic flow. These simulations were compared with experimental results as well as with the solution in the frequency
Rymanova Anastasia +2 more
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Mathematics, 2023 Since Sir Osborne Reynolds presented the Reynolds-averaged Navier–Stokes (RANS) equations in 1895, the construction of complete closure for RANS equations has been regarded as extremely challenging.
Sungmin Ryu
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Mean flow reconstruction of unsteady flows using physics-informed neural networks
Data-Centric Engineering, 2023 Data assimilation of flow measurements is an essential tool for extracting information in fluid dynamics problems. Recent works have shown that the physics-informed neural networks (PINNs) enable the reconstruction of unsteady fluid flows, governed by ...
Lukasz Sliwinski, Georgios Rigas
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Revisiting the Reynolds-averaged Navier–Stokes equations
Open Physics, 2022 This study revisits the Reynolds-averaged Navier–Stokes (RANS) equations and finds that the existing literature is erroneous regarding the primary unknowns and the number of independent unknowns in the RANS. The literature claims that the Reynolds stress
Sun Bohua
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CivilEng, 2022 Bridges often have complicated geometries in complex terrain where they can be exposed to high wind loading. Current practice in designing for wind can be conservative.
Niamh Moore, Jennifer Keenahan
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VIScous Vorticity Equation (VISVE) for Turbulent 2-D Flows with Variable Density and Viscosity
Journal of Marine Science and Engineering, 2020 The general vorticity equation for turbulent compressible 2-D flows with variable viscosity is derived, based on the Reynolds-Averaged Navier-Stokes (RANS) equations, and simplified versions of it are presented in the case of turbulent or cavitating ...
Spyros A. Kinnas
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Acta Acustica, 2022 We present the extension of a discontinuous Galerkin framework to zonal direct-hybrid aeroacoustic simulations. This extension provides the ability to simultaneously perform a zonal large eddy simulation (LES), solving the compressible Navier–Stokes ...
Kempf Daniel, Munz Claus-Dieter
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Numerical Investigation of Bed Shear Stress and Roughness Coefficient Distribution in a Sharp Open Channel Bend [PDF]
Journal of Applied Fluid Mechanics, 2023 The helical flow leads to the redistribution of the bed shear stress and roughness coefficient in open-channel bends, influencing the transport of sediment and riverbed evolution process.
P. Hu, M. Yu
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Journal of Marine Science and Engineering, 2020 An integrated two-dimensional vertical (2DV) model was developed to investigate wave interactions with permeable submerged breakwaters. The integrated model is capable of predicting the flow field in both surface water and porous media on the basis of ...
Paran Pourteimouri, Kourosh Hejazi
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