Results 41 to 50 of about 193,131 (370)
Supersonic Combustion in Air-Breathing Propulsion Systems for Hypersonic Flight
, 2018 Great efforts have been dedicated during the last decades to the research and development of hypersonic aircrafts that can fly at several times the speed of sound.
J. Urzay
semanticscholar +1 more source
Limiting propulsion of ionic microswimmers [PDF]
, 2023 Self-propulsion of catalytic Janus swimmers in electrolyte solutions is induced by inhomogeneous ion release from their surface. Here, we consider the experimentally relevant cases of particles which emit only one type of ions (type I) or equal fluxes of cations and anions (type II).
arxiv +1 more source
Propulsive Capability of an Asymmetric GDM Propulsion System [PDF]
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006 *† The role of the ambipolar potential in the propulsive capability of the Gasdynamic Mirror (GDM) has been studied previously. The electrostatic potential arises as a result of the initial rapid escape of the electrons due to their small mass, leaving behind an excess of ions and creating a positive electric potential that slows down the electron ...
Kammash, Terry B., Tang, Ricky
openaire +2 more sources
Review of Scientific Instruments, 2020 The transition from old space to new space along with increasing commercialization has a major impact on space flight, in general, and on electric propulsion (EP) by ion thrusters, in particular.
K. Holste +26 more
semanticscholar +1 more source
Light-switchable propulsion of active particles with reversible interactions [PDF]
Nature Communications, 2020 Active systems such as microorganisms and self-propelled particles show a plethora of collective phenomena, including swarming, clustering, and phase separation.
H. R. Vutukuri +3 more
semanticscholar +1 more source
Journal of Experimental Biology, 2006 In this JEB Classics paper, Sir James Gray and G. J. Hancock explained how spermatozoa are propelled by flagellar bending waves (Gray and Hancock, 1955). This paper was a lasting success because it provided an easy-to-understand solution to a complicated hydrodynamic problem, and because it provided a quantitative prediction of the swimming speed that ...
openaire +5 more sources
Journal of Marine Science and Engineering, 2020 The shipping industry is becoming increasingly aware of its environmental responsibilities in the long-term. In 2018, the International Maritime Organization (IMO) pledged to reduce greenhouse gas (GHG) emissions by at least 50% by the year 2050 as ...
Kyunghwa Kim +3 more
semanticscholar +1 more source
Symmetry breaking propulsion of magnetic microspheres in nonlinearly viscoelastic fluids
Nature Communications, 2021 Microscale propulsion impacts a diverse array of fields ranging from biology and ecology to health applications, such as infection, fertility, drug delivery, and microsurgery.
L. Rogowski +5 more
semanticscholar +1 more source
Experimental Investigations of Elastic Tail Propulsion at Low Reynolds Number [PDF]
Phys. Fluids (2006) 18, 091701, 2006 A simple way to generate propulsion at low Reynolds number is to periodically oscillate a passive flexible filament. Here we present a macroscopic experimental investigation of such a propulsive mechanism. A robotic swimmer is constructed and both tail shape and propulsive force are measured.
arxiv +1 more source