Results 51 to 60 of about 30,241 (212)

The Effects of Compression Direction on the Performance of a Two-Dimensional Inlet Mounted on the Aft Body

Applied Sciences
The aft-body mounted inlet of a hypersonic vehicle has garnered attention for its potential to shorten the propulsion system. This study aims to explore the influence of compression direction on the performance of the hypersonic inlet attached to the ...
Jingfan Chen, Xiaoqiang Fan, Bing Xiong
doaj   +1 more source

Dynamic Performance Enhancement of a High‐Agility Hypersonic Mechanical System via a Learning‐Augmented Robust Control Architecture

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori, Seyed Hossein Sadati   +1 more
wiley   +1 more source

Future Prospects for Hypersonic Flight Test For University Students [PDF]

, 2005
The transport to space of satellites and experiments with conventional expandable rockets is a very expensive and time demanding business and therefore almost prohibitive for Universities and High-School or Colleges laboratories.
Behrens, J., Lehmann, P., Bozic, O., Longo, J.M.A.   +3 more
core  

Rarefied hypersonic flow simulations using the Navier-Stokes equations with non-equilibrium boundary conditions [PDF]

, 2012
This paper investigates the use of Navier-Stokes-Fourier equations with non-equilibrium boundary conditions (BCs) for simulation of rarefied hypersonic flows.
Reese, Jason M., Christopher J. Greenshields, Greenshields, Christopher, Jason M. Reese, Greenshields, Christopher J., Reese, Jason   +5 more
core   +3 more sources

Modeling and Performance Analysis of Solid Oxide Fuel Cell Power Generation System for Hypersonic Vehicles

Aerospace
Advanced airborne power generation technology represents one of the most effective solutions for meeting the electricity requirements of hypersonic vehicles during long-endurance flights.
Yiming Liu, Jianguo Tan, Dongdong Zhang, Zihan Kuai   +3 more
doaj   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Multi-Disciplinary Analysis and Optimization of Hypersonic Transport Aircrafts [PDF]

, 2008
The development and first applications to a Mach 6 hypersonic transport configuration of a new multidisciplinary optimization (MDO) process is presented.
Duveau, P., Carrier, G., Thepot, R., Dittrich, R., Salah El Din, I., Longo, J.M.A.   +5 more
core  

A Class of Three-Dimensional Optimum Wings in Hypersonic Flow [PDF]

, 1967
The idea of using streamlines of a certain known flow field to construct generally three-dimensional lifting surfaces together with the method of evaluating the aerodynamic forces on the surfaces, developed by Nonweiler, Jones and Woods, has been ...
Zien, Tse-Fou
core   +1 more source

G-Agent: A Large Language Model-Driven Multi-Agent Framework for Automated Configuration Optimization of Scramjet Cavity Combustors

Aerospace
This paper presents a G-Agent, a large language model (LLM)-driven multi-agent framework that automates the optimization workflow for an axisymmetric cavity-based scramjet combustor. The framework integrates a supersonic compressible reacting flow solver
Yuchen Fang, Dapeng Xiong, Guoyan Zhao, Yixin Yang, Hongbo Wang, Mingbo Sun   +5 more
doaj   +1 more source

Preparing to Fight the ‘Wrong War’? Why the UK Defence Budget Must Focus More on ‘National Resilience’

The Political Quarterly, EarlyView.
Abstract This article argues that the current debate over defence spending in the United Kingdom is fundamentally flawed. Too much emphasis is being placed on preparing for a form of warfare with Russia that is unlikely to occur. As this article points out, the Russians actually want to avoid a traditional battlefield confrontation with NATO.
Rod Thornton
wiley   +1 more source