Results 71 to 80 of about 1,519 (231)

Circular-arc jet flaps at hypersonic speeds [PDF]

Propulsion and ASW Meeting, 1970
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/76220/1/AIAA-1970-553-639 ...
openaire   +1 more source

Suboptimal Midcourse Guidance with Terminal-Angle Constraint for Hypersonic Target Interception

International Journal of Aerospace Engineering, 2019
For the problem of hypersonic target interception, a novel midcourse guidance method with terminal-angle constraint is proposed. Referring to the air-breathing and the boost-gliding hypersonic targets, flight characteristics and difficulties of ...
Shizheng Wan, Xiaofei Chang, Quancheng Li, Jie Yan   +3 more
doaj   +1 more source

Assessment of Solution of the Boundary Layer Equations and Approximate Relations for Aeroheating of Axisymmetric Reentry Vehicles [PDF]

فصلنامه علوم و فناوری فضایی, 2013
When a solver is used for analyzing the hypersonic reentry vehicles, high speed and accuracy of the solver results are the basic parameters in the design process.
R. Kamali –Moghadam, S. Nouri, M. R. Salimi, M. Sheida, S. A. Hosseini   +4 more
doaj  

Viscous equilibrium analysis of heat transfer on blunted cone at hypersonic flow

Case Studies in Thermal Engineering, 2019
High speed flow requires consideration of some complex phenomena such as chemical reactions. In fact, as flow velocity increase, high temperature of hypersonic velocity excites molecules to react and causes dissociation and ionization.
F. Pish, A. Hassanvand, M. Barzegar Gerdroodbary, S. Noori   +3 more
doaj   +1 more source

RBFNN-Based Anti-Input Saturation Control for Hypersonic Vehicles

Aerospace
In hypersonic flight control, characterized by challenges posed by input saturation, model parameter uncertainties, and external disturbances, this paper introduces a pioneering anti-input saturation control method based on RBFNN adaptivity.
Bangchu Zhang, Yiyong Liang, Shuitao Rao, Yu Kuang, Weiyu Zhu   +4 more
doaj   +1 more source

Modeling and control of hypersonic vehicle dynamic under centroid shift

Advances in Mechanical Engineering, 2018
Due to the huge flight scale and the fast speed of hypersonic vehicle, the system must be of strong nonlinearity, coupling, and fast time variability, which give rise to the huge challenge for the design of controller.
Yizhen Meng, Bin Jiang, Ruiyun Qi
doaj   +1 more source

NUMERICAL MODELING AND DYNAMIC SIMULATIONS OF NONLINEAR AEROTHERMOELASTIC OF A DOUBLE-WEDGE LIFTING SURFACE [PDF]

Journal of Engineering Science and Technology, 2008
The design of the re-entry space vehicles and high-speed aircrafts requires special attention to the nonlinear thermoelastic and aerodynamic instabilities of their structural components.
ARIF A. EBRAHEEM AL-QASSAR
doaj  

Optimization and Analysis on Trajectory with Multiple Constraints for Hypersonic Air-vehicle

MATEC Web of Conferences, 2015
The trajectory optimization technology is one of the key technologies for hypersonic air-vehicle. There are multiple constraints in the process of hypersonic flight, such as uncertainty of flight environment, thermal current, dynamic pressure and ...
Wei Changzhu, Huang Rong, Li Hao, Shan Yongzhi   +3 more
doaj   +1 more source

High-Speed PLIF Imaging of Hypersonic Transition over Discrete Cylindrical Roughness [PDF]

, 2010
Paul M. Danehy, Christopher Ivey, Jennifer Inman, Brett F. Bathel, Stephen B. Jones, Naibo Jiang, Matt Webster, Walter Lempert, Joseph D. Miller, Terry E. Meyer, Andrew McCrea   +10 more
openalex   +1 more source

Experimental Study of Single Expansion Ramp Nozzle Performance Using Pitot Pressure and Static Pressure Measurements

International Journal of Aerospace Engineering, 2019
In order to overcome the drag at hypersonic speed, hypersonic flight vehicles require a high level of integration between the airframe and the propulsion system.
Sergio Nicolas Pachón Laitón, João Felipe de Araujo Martos, Israel da Silveira Rego, George Santos Marinho, Paulo Gilberto de Paula Toro   +4 more
doaj   +1 more source