Results 61 to 70 of about 160,803 (161)

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

open access: yesInternational 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   +4 more
doaj   +1 more source

Functionally Graded Oxide Scale on (Hf,Zr,Ti)B2 Coating with Exceptional Ablation Resistance Induced by Unique Ti Dissolving

open access: yesAdvanced Science, Volume 12, Issue 10, March 13, 2025.
A functionally graded oxide scale comprising a dense top layer and an underlying fine‐grained layer with a grain size gradient forms on a multicomponent (Hf,Zr,Ti)B2 coating through Ti content optimization. The former is a superior oxygen barrier, and the latter ensures strain tolerance, collectively manifesting the coating's exceptional ablation ...
Junshuai Lv   +9 more
wiley   +1 more source

Design of a Three-Dimensional Hypersonic Inward-Turning Inlet with Tri-Ducts for Combined Cycle Engines

open access: yesInternational Journal of Aerospace Engineering, 2018
The operation of a propulsion system in terms of horizontal takeoff/landing and full-speed range serves as one of the main difficulties for hypersonic travelling.
Chengxiang Zhu   +3 more
doaj   +1 more source

A Numerical Framework for Fast Transient Compressible Flows Using Lattice Boltzmann and Immersed Boundary Methods

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 3, 15 February 2025.
ABSTRACT This article is dedicated to the development of a model to simulate fast transient compressible flows on solid structures using immersed boundary method (IBM) and a lattice Boltzmann solver. Ultimately, the proposed model aims at providing an efficient algorithm to simulate strongly‐coupled fluid‐structure interactions (FSI). Within this goal,
Hippolyte Lerogeron   +3 more
wiley   +1 more source

Research on the Coupled Bionic Design and Validation of Flying Car Folding Wings Based on Eurasian Eagle‐Owl Wing Shape

open access: yesApplied Bionics and Biomechanics, Volume 2025, Issue 1, 2025.
Objective This study explores the application of Eurasian eagle‐owl wing characteristics to the design of folding wings for flying cars. By analyzing the aerodynamics of the eagle‐owl wing, we aim to innovate folding wing configurations to improve lift, reduce drag, enhance flight stability, and ultimately increase the overall energy efficiency and ...
Zhengjun Li   +3 more
wiley   +1 more source

Hypersonic interference heating in the vicinity of surface protuberances [PDF]

open access: yes, 2010
The understanding of the behaviour of the flow around surface protuberances in hypersonic vehicles is developed and an engineering approach to predict the location and magnitude of the highest heat transfer rates in their vicinity is presented.
Garry, Kevin P.   +4 more
core   +1 more source

A Review of Research on the Thermo‐Force Characteristics of Scramjet Engine Wall Based on Neural Networks

open access: yesInternational Journal of Energy Research, Volume 2025, Issue 1, 2025.
With the development of high‐performance computing and advanced experimental methods, data‐driven machine learning, especially neural network technology, has shown great potential in fluid mechanics research and has become a fourth paradigm research tool.
Chen Qi   +6 more
wiley   +1 more source

Effect of Micro-Vortex Generator in Hypersonic Inlet [PDF]

open access: yes, 2020
In the present study computational tests were carried out to get an understanding of the flow field in a pure mixedcompression hypersonic inlet at a free stream Mach number of 7 and an altitude of 35km.
Kumar, Vivek V., Bogadi, Surendra
core   +1 more source

A Rapid Method of Integrated Aeropropulsive Analysis for the Conceptual Design of Airbreathing Hypersonic Aircraft

open access: yesAerospace
A special feature of airbreathing hypersonic aircraft is the complex coupling between aerodynamic and propulsive performances. This study presents a rapid analysis methodology for the integration of these two critical aspects in the conceptual design of ...
Yalin Dai   +4 more
doaj   +1 more source

Luminescent Measurement Systems for the Investigation of a Scramjet Inlet-Isolator

open access: yesSensors, 2014
Scramjets have become a main focus of study for many researchers, due to their application as propulsive devices in hypersonic flight. This entails a detailed understanding of the fluid mechanics involved to be able to design and operate these engines ...
Azam Che Idris   +3 more
doaj   +1 more source

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