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Large-scale graph-machine-learning surrogate models for 3D-flowfield prediction in external aerodynamics
The article presents the application of inductive graph machine learning surrogate models for accurate and efficient prediction of 3D flow for...
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Computational investigation of the effect of variable cowl length on the flowfield of conical aerospike nozzles
Aerospike nozzles propose several benefits over conventional convergent–divergent nozzles due to their altitude-compensating effects. Herein, as a...
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Analysis of Subsonic/Hypersonic Aerodynamics of a High-Speed Aircraft
Unmanned flying-test bed aircraft are fundamental to experimentally prove and validate next-generation high-speed technologies, such as aeroshapes...
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Numerical Simulation of 2D Tube Convection
We present results from numerical simulation of two-dimensional tube convection: natural convection in a vertical tube with an imposed unstable...
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Effect of relative jet momentum in supersonic dual im**ing jets
Multi-jet im**ement flows relevant to applications in Short Take-Off and Vertical Landing aircraft have been investigated from the standpoint of...
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Vortex force decomposition—forces associated with individual elements of a vorticity field
The impulse theory used to calculate the force from a vorticity distribution in two-dimensional, incompressible flow, is re-cast with the aim of...
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Single- and two-phase fluid droplet breakup in impulsively generated high-speed flow
Aerobreakup of fluid droplets under the influence of impulsively generated high-speed gas flow using an open-ended shock tube is studied using...
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Numerical Simulation of Rotorcraft In-Flight Icing and Shedding via a High-Fidelity Method
In this chapter, a novel three-dimensional simulation framework for modelling the safety-critical problem of rotorcraft ice formation and shedding is...
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Effect of Moving Endwall on Hub Leakage Flow of Cantilevered Stator in a Linear Compressor Cascade
The cantilevered stator has the advantages of reducing mass and axial length of highly loaded compressor. The details of the hub leakage flow...
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Analyses on Aerodynamic Interactions of Quad-Tiltrotor Aircraft with Variable RPM and Diameter
A CFD method for whole aircraft aerodynamic interactions of the quad-tiltrotor is established, where the momentum source method is adopted for the...
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Flow characterization during the flame acceleration and transition-to-detonation process with solid obstacles and fluid jets
The differences of flow characterization at the different stages of flame acceleration and transition to detonation in tubes with smooth walls, solid...
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Aeroacoustic Characteristic Analyses of Coaxial Rotors in Hover and Forward Flight
A numerical method combining computational fluid dynamics (CFD) method and Ffowcs Williams–Hawkings (FW–H) equations is established for predicting...
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Galerkin spectral estimation of vortex-dominated wake flows
AbstractWe propose a technique for performing spectral (in time) analysis of spatially-resolved flowfield data, without needing any temporal...
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Computational modeling and stability analysis of BOLT hypersonic geometry including off-nominal conditions
With an interest in develo** and studying the stability of laminar undisturbed basic-state solutions, this work is focused on accurately modeling...
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Numerical Simulation of Rotorcraft In-Flight Icing and Shedding via a High-Fidelity Method
In this chapter, a novel three-dimensional simulation framework for modelling the safety-critical problem of rotorcraft ice formation and shedding is...
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Modelling of Mach reflections in internal axisymmetric steady supersonic flow
A new model to predict internal axisymmetric shocks with Mach reflections at their centreline is developed, and results are compared with an Eulerian...
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Application of clustering and the Hungarian algorithm to the problem of consistent vortex tracking in incompressible flowfields
The ability to track vortices spatially and temporally is of great interest for the study of complex and turbulent flows. A methodology to solve the...
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Effects of surface imperfections on the boundary layer stability in a high speed flow
The effect of surface imperfections on the second mode instability in a Mach 4.5 flow is investigated using direct numerical simulation (DNS) and...
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Flow mechanism study and geometrical parameters analysis of fluidic oscillators based on pressure-sensitive paint measurements and modal analysis
The present study optimized some novel fluidic oscillator designs, measured their internal–external fluid dynamics, and used modal analysis to reveal...
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Investigation of fluidic thrust vectoring for scramjets
AbstractFluidic thrust vectoring (FTV) offers a novel approach to aerodynamic control, circumventing some of the issues associated with mechanical...
