Results 61 to 70 of about 5,113,406 (258)
Heat Flux Sensors for Infrared Thermography in Convective Heat Transfer
Sensors, 2014 This paper reviews the most dependable heat flux sensors, which can be used with InfraRed (IR) thermography to measure convective heat transfer coefficient distributions, and some of their applications performed by the authors’ research group at the ...
Giovanni Maria Carlomagno +3 more
doaj +1 more source
Collaborating in future states—Contextual instability, paradigmatic remaking, and public policy
Australian Journal of Public Administration, EarlyView.Abstract Collaboration is ubiquitous in public policy life, with its presence and profile determined by prevailing governance conditions. Commitments to globalisation and marketisation in the latter part of the 20th century marked the onset of an era defined by collaboration, between and across tiers and spheres of government, with non‐state actors ...
Helen Sullivan
wiley +1 more source
Study of Parameters Affecting Separation Bubble Size in High Speed Flows using k-ω Turbulence Model [PDF]
Journal of Applied and Computational Mechanics, 2018 Shock waves generated at different parts of vehicle interact with the boundary layer over the surface at high Mach flows. The adverse pressure gradient across strong shock wave causes the flow to separate and peak loads are generated at separation and ...
Amjad Ali Pasha
doaj +1 more source
Flame Instability and Transition to Detonation in Supersonic Reactive Flows
, 2017 Multidimensional numerical simulations of a homogeneous, chemically reactive gas were used to study ignition, flame stability, and deflagration-to-detonation transition (DDT) in a supersonic combustor.
Center +4 more
core +1 more source
Newly identified principle for aerodynamic heating in hypersonic flows
Journal of Fluid Mechanics, 2018 Instability evolution in a transitional hypersonic boundary layer and its effects on aerodynamic heating are investigated over a 260 mm long flared cone. Experiments are conducted in a Mach 6 wind tunnel using Rayleigh-scattering flow visualization, fast-
Yiding Zhu +5 more
semanticscholar +1 more source
A “Tech First” Approach to Foreign Policy? The Three Meanings of Tech Diplomacy
Global Policy, EarlyView.ABSTRACT Scholars have recently argued that international politics is plagued by instability as the world rapidly transitions from one crisis to another. This state of “Permacrisis,” or permanent crises between states, is driven by technological innovations which create new kinds of crises and drive competitions between adversarial states.
Ilan Manor
wiley +1 more source
ANALYSIS OF THREE DIMENSIONAL HYPERSONIC FLOW AROUND RE-ENTRY VEHICLE USING NAVIER-STOKES EQUATIONS
Havacılık ve Uzay Teknolojileri Dergisi, 2014 The purpose of this study is to develop an accurate and efficient CFD code that can be used in hypersonic flows. The flow analysis is based on the three dimensional Navier-Stokes equations.
Muharrem Özgün, Sinan Eyi
doaj
Universities as the Next Counterintelligence Battleground in Geopolitical Contests
Global Policy, EarlyView.ABSTRACT Globally, universities are increasingly becoming the target of foreign national security actors, engaging in espionage, sabotage, foreign interference and intellectual property theft. Despite that, there has been no examination of the utilisation of counterintelligence approaches by universities to the threats they face from the subordination ...
Brendan Walker‐Munro +1 more
wiley +1 more source
War as a Phenomenon of Inquiry in Management Studies
Journal of Management Studies, EarlyView.Abstract We argue that war as a phenomenon deserves more focused attention in management. First, we highlight why war is an important and relevant area of inquiry for management scholars. We then integrate scattered conversations on war in management studies into a framework structured around three building blocks – (a) the nature of war from an ...
Fabrice Lumineau, Arne Keller
wiley +1 more source
Analysis of Aerodynamic Heating Modes in Thermochemical Nonequilibrium Flow for Hypersonic Reentry
EnergiesThermochemical nonequilibrium significantly affects the accurate simulation of the aerothermal environment surrounding a hypersonic reentry vehicle entering Earth’s atmosphere during deep space exploration missions.
Shuai He +8 more
doaj +1 more source