Showing papers in "International Journal of Computational Fluid Dynamics in 2021"
TL;DR: In this article, a series of challenging fluid flow applications are used to demonstrate the powerful capabilities of the SPH method and the applications are classified according to whether they are industrial, geophy...
Abstract: A series of challenging fluid flow applications are used to demonstrate the powerful capabilities of the SPH method. The applications are classified according to whether they are industrial, geophy...
15 citations
TL;DR: In this article, computational fluid dynamics (CFD) modeling was performed to simulate spatial and temporal airborne pathogen concentrations during an observed COVID-19 outbreak in a restaurant in Guangzhou, China.
Abstract: Computational fluid dynamics (CFD) modelling was performed to simulate spatial and temporal airborne pathogen concentrations during an observed COVID-19 outbreak in a restaurant in Guangzhou, China...
12 citations
TL;DR: In this article, the Smoothed Particle Hydrodynamics code SPHERA (RSE SpA) was validated on a laboratory urban dam-break flood and compared with a porous Shallow Water Equations - Finite Volume Method 2D model.
Abstract: The Smoothed Particle Hydrodynamics code SPHERA (RSE SpA) is validated on a laboratory urban dam-break flood. Comparisons with a porous Shallow Water Equations - Finite Volume Method 2D model are a...
10 citations
TL;DR: In this article, a high-fidelity, low-Mach computational fluid dynamics simulation tool that includes evaporating droplets and variable-density turbulent flow coupling is well-suited to ascertain transmission proba...
Abstract: A high-fidelity, low-Mach computational fluid dynamics simulation tool that includes evaporating droplets and variable-density turbulent flow coupling is well-suited to ascertain transmission proba...
9 citations
TL;DR: In this article, a 3D triple-phase smoothed particle is developed for modeling supercooled large droplets (SLD) impacting aircraft surfaces, which can be used for modeling aircraft surfaces.
Abstract: Solidification is an important issue that needs to be addressed when modelling supercooled large droplets (SLD) impacting aircraft surfaces. This work develops a 3D triple-phase smoothed particle h...
7 citations
TL;DR: In this article, the influence of the scheme used in the convective terms of turbulence and transition transport equations on the numerical accuracy of transitional flow simulations is discussed. But the authors do not consider the effect of transition transport on the simulation accuracy.
Abstract: This paper addresses the influence of the scheme used in the convective terms of turbulence and transition transport equations on the numerical accuracy of transitional flow simulations. Three tran...
5 citations
TL;DR: In this article, a compact gas-kinetic scheme for compressible flow is constructed on hybrid unstructured mesh based on high-order gas evolution model at cell interfaces both cell-averaged fl...
Abstract: In this paper, a compact gas-kinetic scheme (CGKS) for compressible flow is constructed on hybrid unstructured mesh. Based on high-order gas evolution model at cell interfaces both cell-averaged fl...
5 citations
TL;DR: This paper presents a GPU-based turbulent flow simulation by link-wise artificial compressibility method (LW-ACM), extended for general-purpose 3D turbulent flow via the introduction of the synthetic eddy method (SEM) as a distributed source term into the channel.
Abstract: We present a GPU-based turbulent flow simulation by link-wise artificial compressibility method (LW-ACM). The standard implementations of the lattice Boltzmann method are limited by memory requirem...
4 citations
TL;DR: A fully explicit projection method with second-order space-time accuracy is adopted and the parallel diagonal dominant (PDD) algorithm for the tridiagonal system is employed to solve the pressure Poisson equation.
Abstract: This paper presents a low-communication-overhead parallel method for direct numerical simulations of the 3D incompressible wall turbulence. A fully explicit projection method with second-order spac...
4 citations
TL;DR: In this paper, a hybrid scheme combining the fifth-order Targeted Essentially Non-Oscillatory (TENO) reconstruction and the tangent of hyperbola for interface capturing (THINC) recons...
Abstract: This paper presents a new hybrid scheme which combines the fifth-order Targeted Essentially Non-Oscillatory (TENO) reconstruction and the tangent of hyperbola for interface capturing (THINC) recons...
4 citations
TL;DR: In this paper, the authors present a computational model for a discontinuous fiber composite manufacturing process, called the High Performance Discontinuous Fibre (HPDF) process.
Abstract: This work presents a computational model for a discontinuous fibre composite manufacturing process. The alignment mechanism of this novel process, called the High Performance Discontinuous Fibre (H...
TL;DR: For simulation of hypersonic turbulent and transitional flows at high Reynolds numbers, a gas-kinetic scheme (GKS) strongly coupled with the turbulent kinetic energy equation in shear stress transp... as mentioned in this paper.
Abstract: For simulation of hypersonic turbulent and transitional flows at high Reynolds numbers, a gas-kinetic scheme (GKS) strongly coupled with the turbulent kinetic energy equation in shear stress transp...
TL;DR: The comparison of the results of the numerical study on fixed-wing aircraft against experimental data demonstrate the validity of the SPH method and it is concluded that theSPH-FE approach is well-suited for the simulation of violent flow phenomena and fluid-structure interaction.
Abstract: This paper discusses selected features of the Smoothed Particle Hydrodynamics (SPH) method when used in combination with a Finite Element (FE) software tool. Special attention is paid to the implem...
TL;DR: In the context of the development of HALO3D (High Altitude Low Orbit 3D), an edge-based Finite Element Method multidisciplinary solver for hypersonic flows, this article presented the simulation of fl...
Abstract: In the context of the development of HALO3D (High Altitude Low Orbit 3D), an edge-based Finite Element Method multidisciplinary solver for hypersonic flows, this paper presents the simulation of fl...
TL;DR: When the tire of aircraft landing gear passes through the contaminated runway, besides the side water spray, the water spray between the multi-wheels will collide and form the pattern similar to th...
Abstract: When the tire of aircraft landing gear passes through the contaminated runway, besides the side water spray, the water spray between the multi-wheels will collide and form the pattern similar to th...
TL;DR: The ongoing SARS-CoV-2 (Covid-19) pandemic has ushered an unforeseen level of global health and economic burden as discussed by the authors, which is known to have a dominant airborne transmissibility.
Abstract: The ongoing SARS-CoV-2 (Covid-19) pandemic has ushered an unforeseen level of global health and economic burden. As a respiratory infection, Covid-19 is known to have a dominant airborne transmissi...
TL;DR: In this article, the underlying primary instability dynamics of boundary layer transition were extracted using linear theory. But, such methods have difficulty in isolating the dynami... and they are not suitable for boundary layer boundary transition.
Abstract: Linear theory continues to play a critical role in extracting the underlying primary instability dynamics of boundary layer transition. However, such methods have difficulty in isolating the dynami...
TL;DR: In this article, the vorticity confinement (VC) method was applied to tip vortices shed by edges of wings in order to predict induced drag using far-field integration.
Abstract: The vorticity confinement (VC) method was applied to tip vortices shed by edges of wings in order to predict induced drag using far-field integration. The optimal VC parameter was determined by its...
TL;DR: Although weighted compact nonlinear scheme (WCNS) has been successfully applied to the simulation of complex configurations, due to the excessive dissipation, the scheme is still not suitable for m.
Abstract: Although weighted compact nonlinear scheme (WCNS) has been successfully applied to the simulation of complex configurations, due to the excessive dissipation, the scheme is still not suitable for m
TL;DR: Gingold and Monaghan as discussed by the authors proposed the Smoothed Particle Hydrodynamics (SPH) model to address the challenges of computational modelling of astrophysical processes, which usually involve mat...
Abstract: Smoothed Particle Hydrodynamics was created by Gingold and Monaghan (1977) and Lucy (1977) to address the challenges of computational modelling of astrophysical processes. These usually involve mat...
TL;DR: In this article, the wake in transitional flow around a circular cylinder is studied using weakly compressible smoothed particle hydrodynamics scheme up to 10 cylinder diameters downstre...
Abstract: Two-dimensional dynamics of the wake in transitional flow around a circular cylinder is studied using weakly compressible smoothed particle hydrodynamics scheme up to 10 cylinder diameters downstre...
TL;DR: In this paper, the attenuation effect of the bladder pressure pulsation attenuator cannot be quantitatively analyzed, and the dynamic mesh technology was combined with the user-defined funct...
Abstract: To solve the problem that the attenuation effect of the bladder pressure pulsation attenuator cannot be quantitatively analysed, the dynamic mesh technology was combined with the user-defined funct...
TL;DR: In this article, the two key steps in IBM, namely the force distribution and velocity interpolation steps, are both performed in the immersed boundary method (IBM) for simulation of flow systems.
Abstract: The immersed boundary method (IBM) is often adopted to simulate various flow systems. The two key steps in IBM, namely the force distribution and velocity interpolation steps, are both performed in...
TL;DR: In this article, large eddy simulation is performed in heat transfer of turbulent pipe flow with NEK5000 code based on spectral element method to study uncertainty quantification by Grid Convergence Index.
Abstract: Large eddy simulation is performed in heat transfer of turbulent pipe flow with NEK5000 code based on spectral element method to study uncertainty quantification by Grid Convergence Index. The turb...
TL;DR: In this article, the impact dynamics on hydrophobic surfaces under different wettability and impact conditions are examined numerically and multi-phase finite volume simulations are carried out by em...
Abstract: In this work, droplet impact dynamics on hydrophobic surfaces under different wettability and impact conditions are examined numerically. Multi-phase finite volume simulations are carried out by em...
TL;DR: In this article, an optimised Direct Numerical Simulation (DNS) solver for laminar, transition, and turbulent flow is presented, which uses the Crank Nicholson scheme for time advancement.
Abstract: We develope an optimised Direct Numerical Simulation (DNS) solver for laminar, transition, and turbulent flow. It utilises the Crank Nicholson scheme for time advancement, and it is spatially accur...
TL;DR: Li, Wanai, Qian Wang, and Yu Xin Ren as mentioned in this paper made several improvements to generalise the p-weighted limiter for the discontinuous Galerkin (DG) method proposed in 1D and triangular grids.
Abstract: This paper makes several improvements to generalise the p-weighted limiter for the discontinuous Galerkin (DG) method proposed in 1D and triangular grids [Li, Wanai, Qian Wang, and Yu Xin Ren. 2020...
TL;DR: In this paper, the authors incorporated plasma sheath effects into most CFD simulations of magnetohydrodynamics (MHD) or aerothermodynamics due to the high computational costs involved.
Abstract: To date, plasma sheath effects have not been incorporated into most CFD simulations of magnetohydrodynamics (MHD) or aerothermodynamics due to the high computational costs involved. The accurate mo...
TL;DR: In this paper, a modified weighted essentially non-oscillatory scheme with a seventh-order of accuracy and a novel nonlinear weighting method was presented for local smoothness.
Abstract: The aim of this paper is the presentation of a new modified weighted essentially non-oscillatory scheme with a seventh-order of accuracy, and, a novel nonlinear weighting method. Local smoothness i...
TL;DR: In this paper, an application of the variable time step (VTS) method was proposed to solve the nonconservation of fluxes encountered in the conventional direct simulation Monte Carlo (DSMC) method in axis-constraints.
Abstract: This study proposes an application of the variable time step (VTS) method to solve the non-conservation of fluxes encountered in the conventional direct simulation Monte Carlo (DSMC) method in axis...