Results 11 to 20 of about 27,081 (222)

High-enthalpy hypersonic flows

open access: yesAdvances in Aerodynamics, 2020
Nearly all illuminating classic hypersonic flow theories address aerodynamic phenomena as a perfect gas in the high-speed range and at the upper limit of continuum gas domain.
Joseph J. S. Shang, Hong Yan
doaj   +1 more source

A Janus-Like Bio-Inspired Strategy for 3D-Printed Bimetallic Metamaterials with Excellent Thermal-Protection and Load Bearing Capacity. [PDF]

open access: yesAdv Sci (Weinh)
A Janus‐like bio‐inspired strategy is proposed for integrally 3D‐printed bimetallic metamaterials. Inspired by shell bilayers, a heat‐resistant AlSiFeMnNiMg alloy and a SiC‐reinforced AlSi10Mg with different SiC volume fractions are arranged as an architected pair.
Dong Z   +5 more
europepmc   +2 more sources

Two-dimensional film cooling over a flat plate in hypersonic flow

open access: yesPropulsion and Power Research, 2018
Film cooling, as one efficient active cooling method, will hopefully be used in ‘hypersonic vehicles’ in the future. The hypersonic vehicle׳s surface is more likely a flat plate than a blunt body, so the cooling characteristics of two-dimensional (2-D ...
Ying Zhou, Hong Wu, Yulong Li, Yi Cai
doaj   +1 more source

Aerodynamic characteristics of hypersonic airfoils based on jet flow control technology

open access: yesAIP Advances, 2021
Hypersonic aircraft represent an important area of aerospace development. Raising the aircraft lift-to-drag ratio, improving the efficiency of attitude control, and optimizing aerodynamic performance are important goals.
Jiachen Zhu   +3 more
doaj   +1 more source

Variant wing scheme and aerodynamic characteristics analysis of hypersonic vehicle

open access: yesHangkong gongcheng jinzhan, 2023
The variant aircraft can change its shape to adapt to different flight states and improve aerodynamic properties of aircraft. Aiming at a new hypersonic vehicle concept machine, the applicability of the wing variable sweep design on this hypersonic ...
ZHANG Xin   +5 more
doaj   +1 more source

A review of the mathematical modeling of equilibrium and nonequilibrium hypersonic flows

open access: yesAdvances in Aerodynamics, 2022
This paper systematically reviews the mathematical modeling based on the computational fluid dynamics (CFD) method of equilibrium and nonequilibrium hypersonic flows.
Wenqing Zhang   +3 more
doaj   +1 more source

A Proposal for Long-Term Missions of Small Lunar Rovers Using an MLI Curtain System

open access: yesInternational Journal of Aerospace Engineering, 2019
This paper proposes a lunar night survival method for small rovers using an MLI (Multilayer Insulation) curtain system for long-term missions. Until recently, it was difficult to install RHU (Radioisotope Heating Units) or other temperature maintenance ...
Jang-Joon Lee, Kyu-Hong Kim
doaj   +1 more source

Simulations of Hypersonic Boundary-Layer Transition over a Flat Plate with the Spalart-Allmaras One-Equation BCM Transitional Model

open access: yesMathematics, 2022
Transitional flow has a significant impact on vehicles operating at supersonic and hypersonic speeds. An economic way to simulate this problem is to use computational fluid dynamics (CFD) codes.
Yu Chen, Nick Gibbons
doaj   +1 more source

Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet

open access: yesThe Scientific World Journal, 2013
The combination of multiplemodules in parallel manner is an important way to achieve the much higher thrust of scramjet engine. For the multiple-modules scramjet engine, when inlet unstarted oscillatory flow appears in a single-module engine due to high ...
Jichao Hu   +4 more
doaj   +1 more source

Research Progress of hypersonic boundary layer transition control experiments

open access: yesAdvances in Aerodynamics, 2022
Hypersonic boundary layer transition is a hot yet challenging problem restricting the development and breakthrough of hypersonic aerodynamics. In recent years, despite great progress made by wind tunnel experiment, transition mechanism and transition ...
He-sen Yang   +6 more
doaj   +1 more source

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