Results 71 to 80 of about 81,958 (286)
Ejecta Speed with the Projectile Velocity less than 2 km/s [PDF]
arXiv, 2021 This work is a theoretical study of the speed at which the material of an impacted target is ejected during the formation of an impact crater. Our model, starting from the first principle of thermodynamics, can describes the speed of the ejecta recursing to considerations that include complex process in simple calculations.
arxiv
Instabilities and transition in cooled-wall hypersonic boundary layers [PDF]
, 2020 Wall cooling has substantial effects on the development of instabilities and transition processes in hypersonic boundary layers (HBLs). A sequence of linear stability theory, two-dimensional and non-linear three-dimensional DNSs is used to analyze Mach~6 boundary layers, with wall temperatures ranging from near-adiabatic to highly cooled conditions ...
arxiv +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
Implicit High-Order Flux Reconstruction Solver for High-Speed Compressible Flows [PDF]
, 2018 The present paper addresses the development and implementation of the first high-order Flux Reconstruction (FR) solver for high-speed flows within the open-source COOLFluiD (Computational Object-Oriented Libraries for Fluid Dynamics) platform. The resulting solver is fully implicit and able to simulate compressible flow problems governed by either the ...
arxiv +1 more source
PTSI: A Person × Task × Situation Interaction Theory of Creativity
The Journal of Creative Behavior, Volume 59, Issue 2, June 2025.ABSTRACT This article presents the PTSI (Person × Task × Situation Interaction) theory of creativity. The theory deals with the creative person, the deployment of creativity in tasks, the ecological context in which this deployment takes place, and the types of creative products that result. The theory draws upon a wide range of previous work.
Robert J. Sternberg
wiley +1 more source
Selecting the Technological Parameters of Steel Coatings Formation by Hypersonic Metallization
Механика машин, механизмов и материалов, 2015 The main idea of the article is to generalize the results of studies of the formation of the steel coatings produced by Hypersonic metallization, defining rational modes of recovery and hardening of transport machinery and technological equipment ...
Marat A. Belotserkovsky +4 more
doaj
Results in Physics, 2021 The plasma sheath formed during the reentry process is able to block the detection and communication to the hypersonic vehicle. Various of interactions occur during the propagation of EM wave in the plasma sheath.
Kai Chen +4 more
doaj
Hypersonic Similarity for the Two Dimensional Steady Potential Flow with Large Data [PDF]
arXiv, 2019 In this paper, we establish the first rigorous mathematical global result on the validation of the hypersonic similarity, which is also called the Mach-number independence principle, for the two dimensional steady potential flow. The hypersonic similarity is equivalent to the Van Dyke's similarity theory, that if the hypersonic similarity parameter $K$
arxiv
Oxide‐Based Ceramic Matrix Composites for High‐Temperature Environments: A Review
Advanced Engineering Materials, Volume 27, Issue 7, April 2025.This review examines oxide‐based ceramic matrix composites, focusing on their processing, composition, and mechanical properties for high‐temperature applications. Key topics include oxidation resistance, failure mechanisms, and corrosion behavior, with insights into their potential use in aerospace, nuclear power, and other high‐performance industries.
Karthikeyan Ramachandran +2 more
wiley +1 more source
Predictive Differential Game Guidance Approach for Hypersonic Target Interception Based on CQPSO
International Journal of Aerospace Engineering, 2022 In the descent phase of the hypersonic target flight trajectory, the hypersonic speed of the target makes the reaction time shorter. Due to overload restrictions, it is challenging for the interceptor to achieve successful interception.
Fan He, Weiyi Chen, Yang Bao
doaj +1 more source