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A Priori Direct Numerical Simulation Assessment of MILD Combustion Modelling in the Context of Reynolds Averaged Navier–Stokes Simulations
A priori Direct Numerical Simulation (DNS) assessment of mean reaction rate closures for reaction progress variable in the context of Reynolds...
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Numerical analysis of the performance of a three-bladed vertical-axis turbine with active pitch control using a coupled unsteady Reynolds-averaged Navier-Stokes and actuator line model
In this paper, we present a numerical model of a vertical-axis turbine (VAT) with active-pitch torque control. The model is based upon the Wind and...
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Research on blade tip clearance cavitation and turbulent kinetic energy characteristics of axial flow pump based on the partially-averaged Navier-Stokes model
To reveal the cavitation forms of tip leakage vortex (TLV) of the axial flow pump and the flow mechanism of the flow field, this research adopts the...
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Stochastic Compressible Navier–Stokes Equations Under Location Uncertainty
The aim of this paper is to provide a stochastic version under location uncertainty of the compressible Navier–Stokes equations. To that end, some...
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Turbulent flows over real heterogeneous urban surfaces: Wind tunnel experiments and Reynolds-averaged Navier-Stokes simulations
Wind tunnel experiment and steady-state Reynolds-averaged Navier-Stokes (RANS) approaches are used to examine the urban boundary layer (UBL)...
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Modeling Reynolds stress anisotropy invariants via machine learning
The presentation and modeling of turbulence anisotropy are crucial for studying large-scale turbulence structures and constructing turbulence models....
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Comparison and verification of turbulence Reynolds-averaged Navier–Stokes closures to model spatially varied flows
The robustness and accuracy of Reynolds-averaged Navier–Stokes (RANS) models was investigated for complex turbulent flow in an open channel receiving...
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Numerical Simulation of a Damaged Salvage Ship in Beam Wave with Reynolds-Averaged Navier-Stokes Method
For a ship sailing at sea, damage flooding may make the ship capsize or sink. Especially, the ship in beam wave condition would be easier to capsize....
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Reynolds-Averaged Navier-Stokes Equations Describing Turbulent Flow and Heat Transfer Behavior for Supercritical Fluid
Supercritical fluid has been widely applied in many industrial applications. The traditional Reynolds-averaged Navier-Stokes (RANS) equations are...
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Modelling of a turbulent lean premixed combustor using a Reynolds-averaged Navier–Stokes approach
This work aims to characterize lean premixed turbulent swirling flames representative of gas turbines and jet engines via a numerical study of flame...
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Surface Currents Effect in the Explicit Algebraic Reynolds Stress Turbulence Model for Simulation of Lateral Buoyant Jets in Cross-Flow
The interaction of turbulent shear flow with the free surface generates a thin vertical zone near the surface with a large outward velocity, known as...
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kεNet: discovering the turbulence model and applying for low Reynolds number turbulent channel flow
We propose a physics informed deep learning neural network, termed kε Net, for discovering the closure model of Reynolds stress in Reynolds-averaged...
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Spatial-averaged turbulence characteristics over staggered pattern roughness
This present study reports the turbulent flow characteristics under the framework of double-averaged (time and spatial domains) Navier–Stokes...
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Modelling Boundary Shear Stress and Depth-Averaged Streamwise Velocity in the Breach
AbstractAn analytical model was developed to predict the boundary shear stress and the depth-averaged streamwise velocity in the breach. A more...
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Data assimilation and linear analysis with turbulence modelling: application to airfoil stall flows with PIV measurements
AbstractA combined data-assimilation and linear mean-flow analysis approach is developed to estimate coherent flow fluctuations from limited...
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Assessment of RANS-type turbulence models for CFD simulations of horizontal axis wind turbines at moderate Reynolds numbers
Nowadays, numerical simulations of wind turbines based on the Reynolds-averaged Navier–Stokes (RANS) formulation are becoming, in terms of...
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Computation of the Fluid Flow Around Octahedral Bodies for a Wide Reynolds Number Range
This paper presents results from a computational study of an incompressible flow around an octahedral body for Reynolds numbers ranging from Re = 100...
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Multi-fidelity Surrogate Modelling of Wall Mounted Cubes
This paper focuses on the application of multi-fidelity surrogate modelling to characteristics of a flow as it changes with a parameter. This...
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Introduction to Modelling and Simulation
This chapter lays the foundation for fluid modelling and simulations in general, with a particular focus on turbulence. Three main paradigms in...
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Assessment of alternative scale-providing variables in a Reynolds-stress model using high-order methods
This paper is set in the high-order finite-difference discretization of the Reynolds-averaged Navier-Stokes (RANS) equations, which are coupled with...
