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Advances in Aerodynamics
Scopus
ISSN 2524-6992 · SpringerOpen · 236 artikel di indeks
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Artikel Jurnal
Smooth transitional RANS model and applications with crossflow effects
Abstract Transitional Reynolds-averaged Navier–Stokes (RANS) models have become relevant in the computational fluid dynamics (CFD) community as a practical approach to predict the transition to turbulence over the surface of aerospace configurations. These models capture the transition caused by…
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Artikel Jurnal
Thresholds and influencing factors on vortex bursting of an ogive-cylinder body-delta wing: an experimental and numerical approach
Abstract Despite the exceptional aerodynamic performance of delta wing-body configurations, the phenomenon of vortex bursting and its influencing factors remain inadequately understood. This research investigates the effects of Mach number, Reynolds number, and body upwash on the angle of attack…
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Artikel Jurnal
Far-field boundary conditions for airfoil simulation at high angle of attack in steady, incompressible, and two-dimensional flow
Abstract Accurate far-field boundary conditions (BCs) are crucial for simulating airfoils at high angles of attack, where lift and drag can be comparable and moments become significant. In this study, we investigate the effects of different BCs on a NACA 0012 airfoil in incompressible and steady…
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Artikel Jurnal
A third-order characteristic-based-split finite element scheme of Spalart–Allmaras model and its application to flow past crescent iced 4-bundled conductors
Abstract The one-equation Spalart–Allmaras (SA) model is employed to close the Reynolds averaged Navier–Stokes equations (RANS equations), and research on turbulent numerical algorithm is carried out. Using the coordinate transformation based on the characteristic line, we can obtain RANS equations…
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Artikel Jurnal
Progress on numerical simulation of thermal protection/friction reduction using supersonic fuel film with boundary layer combustion: a review
Abstract Organizing supersonic fuel films near the wall offers a promising solution to simultaneously reduce friction and thermal loads in the internal flow passages of hypersonic vehicles. This paper presents a thorough review of the supersonic fuel film cooling from a numerical perspective…
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Artikel Jurnal
A unified gas-kinetic framework from Boltzmann to Navier-Stokes scales
Abstract Neither molecular kinetics nor continuum fluid dynamics alone is adequate to describe multiscale gas flows across different regimes. Bridging these regimes within a single self-consistent framework has long been a central challenge in fluid mechanics. We propose a unified gas kinetic…
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Artikel Jurnal
High-speed rarefied gas flow over a cavity at different angles of attack
Abstract A numerical analysis of high-speed rarefied gas flow over a cavity has been performed using the direct simulation Monte Carlo (DSMC) method. The simulation was carried out over a wide range of gas rarefaction, from free-molecular flow to nearly continuum flow, for various values of the…
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Artikel Jurnal
Physics-guided airfoil optimization design for shock buffet suppression
Abstract Shock buffet is one of the common flow instability problems in aviation engineering, which can affect flight handling quality and limit flight envelope. In this study, we propose a physics-guided aerodynamic optimization design framework to improve the buffet onset in the transonic region…
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Artikel Jurnal
Aeroelastic optimization of a small scale horizontal axis wind turbine using particle swarm algorithm
Abstract The multi-objective optimization of a horizontal axis wind turbine blade is performed to optimize its aerodynamic and structural performance by coupling two-way fluid–structure interaction (FSI) with a multi-objective particle swarm optimization (MOPSO) algorithm. The design parameters…
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Artikel Jurnal
The effect of streamwise-traveling waves on the drag variation of compressible channel flow
Abstract The influence of streamwise-traveling waves imposed at the walls on drag variation in compressible channel flow is investigated using direct numerical simulations. The variations in drag are mapped in the frequency-wavenumber $$({\omega }^{+},{k}^{+})$$ ( ω + , k + ) space for three bulk…
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Artikel Jurnal
Measurement of aerodynamic force partitioning among subcomponents in double-deck girders with varied configurations
Abstract With their growing prevalence, double-deck bridges can be classified by the relative width of upper and lower decks into three girder configurations: equal-width (Model A), inverted-trapezoidal (Model B), and lower-deck-cantilevered (Model C). This study combines wind tunnel tests and…
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Artikel Jurnal
Numerical study of underwater jet characteristics of an annular conical aerospike nozzle
Abstract When a solid rocket engine ignites underwater, the tail jet undergoes periodic evolution. To study the underwater over-expansion and separation flow structure of the aerospike nozzle under different high backpressure environments, a numerical model of the underwater jet multiphase flow of…
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Artikel Jurnal
Experimental and numerical analysis on opposing jet for drag reduction in hypersonic flow with angles of attack
Abstract Opposing jet has been widely investigated as an effective aerodynamic drag reduction method in recent years. To study the impact of freestream angle of attack on the drag reduction effect of opposing jet, experimental and numerical approaches are employed to analyze the effects of jet…
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Artikel Jurnal
Gas-kinetic scheme with space-time adaptive mesh refinement
Abstract The gas-kinetic scheme (GKS) is based on the mesoscopic gas-kinetic theory and can achieve a good balance between accuracy and robustness in a wide range of flows. In this study, a new GKS with space-time adaptive mesh refinement (STAMR-GKS) is developed for the Navier–Stokes equations on…
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Artikel Jurnal
Simulation of aircraft unstable motions and unsteady aerodynamic testing with cable-driven parallel suspension system
Abstract This paper presents the development and experimental validation of a novel cable-driven parallel suspension mechanism (CDPSM) for investigating unstable, high-angle-of-attack aerodynamics in low-speed wind tunnel. Designed to overcome the limitations of conventional testing in simulating…
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Artikel Jurnal
A modular method of characteristics framework for controllable-length axisymmetric high-speed wind tunnel nozzle design
Abstract This paper proposes a modular parametric framework for axisymmetric high-speed wind tunnel nozzle design, which innovatively introduces the Terminal Characteristic Line (TCL) theory to isolate upstream and downstream flow fields. It divides the wind tunnel nozzle into several modules for…
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Artikel Jurnal
Adaptive large-eddy simulations with a dynamic subgrid model based on local velocity fluctuation intensities
Abstract In this work, an improved adaptive approach for large-eddy simulations (LES) is introduced based on a dynamic adaptive mesh refinement (AMR) algorithm and a corresponding adaptive subgrid model embedded in such AMR process. The objective of the present work is to develop a turbulent-flow…
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Artikel Jurnal
Hybrid compact least-squares and central weighted essentially non-oscillatory schemes for hyperbolic conservation laws on structured curvilinear grids
Abstract A series of third- and fifth-order hybrid compact least-squares central weighted essentially non-oscillatory schemes are proposed and applied to curvilinear structured grids within the finite volume framework. In smooth regions, compact least-squares schemes based on interfacial…
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Artikel Jurnal
Interaction of shock wave with sinusoidal fuel-air interface
Abstract This work numerically investigates the interaction of shock waves with sinusoidal fuel-air interfaces using an enhanced detonationFoam solver, which employs a detailed nine-species, twenty-one-step H $$_2$$ 2 -O $$_2$$ 2 chemical mechanism. Effects of shock strength, interface amplitude…
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Artikel Jurnal
Research on the flow separation characteristics of shock wave-boundary layer interaction
Abstract Laminar flow separation caused by shock wave-boundary layer interaction is a critical issue for supersonic vehicles, which significantly affects their aerodynamic performance. In-depth studies of the flow separation characteristics and accurate predictions of the separation zone dimensions…