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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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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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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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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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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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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...
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Accounting for the Effects of Experimental Setting in Propeller Flow Computation
Various computational approaches differing in complexity and accuracy can be used to simulate flows around rotating lifting surfaces. Here, the flow...
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Role of viscoelasticity in the appearance of low-Reynolds turbulence: considerations for modelling
Inertial effects caused by perturbations of dynamical equilibrium during the flow of soft matter constitute a hallmark of turbulence. Such...
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Transition Modelling For Flow Separation In Low-Pressure Turbine Cascades
Low-pressure turbine (LPT) blades at high altitude present complex flow situations due to presence of separation and subsequent transition. These...
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CFD modelling of a turbulent CH4/H2/N2 jet diffusion flame with detailed chemistry
A CFD model based on the Reynolds Averaged Navier–Stokes (RANS) approach combined with a detailed chemical kinetic mechanism to investigate a...
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Modelling Spark Ignition Combustion
The book provides a comprehensive overview of combustion models used in different types of spark ignition engines. In the first generation of spark...
