Results 31 to 40 of about 350,639 (185)

PENGARUH THRUST DEDUCTION FACTOR DAN WAKE FRACTION TERHADAP EFISIENSI PROPULSI AKIBAT PERUBAHAN DRAFT KAPAL

open access: yesWave, 2021
This study is to investigate propulsion efficiency due to changes in draught of ship using data series and theoretical approach. A hard chain rescue boat with triplet screw was used for the study and to examine the effect of thrust deduction factor and ...
Muhammad Sawal Baital   +3 more
doaj  

Massively Parallel Large Eddy Simulation of Rotating Turbomachinery for Variable Speed Gas Turbine Engine Operation

open access: yesEnergies, 2020
Gas turbine engines are required to operate at both design and off-design conditions that can lead to strongly unsteady flow-fields and aerodynamic losses severely impacting performance.
Nishan Jain   +6 more
doaj   +1 more source

Aggregation and sedimentation of active Brownian particles at constant affinity

open access: yes, 2018
We study the motility-induced phase separation of active particles driven through the interconversion of two chemical species controlled by ideal reservoirs (chemiostats).
Chatterjee, Arkya   +2 more
core   +1 more source

Designing displaced lunar orbits using low-thrust propulsion [PDF]

open access: yes, 2010
The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Colin R. McInnes   +9 more
core   +1 more source

The applicability of MFD thrusters to satellite power systems [PDF]

open access: yes, 1980
The high power self field MPD thruster uses electromagnetic forces rather than electrostatic to accelerate a neutral plasma. The most attractive application of MPD thrusters to satellite power systems is in the area of electric propulsion for a cargo ...
Jones, R. M., Rudolph, L. K.
core   +1 more source

Introduction to "To the Question of Energy Use of Detonation Combustion" by Ya. B. Zel'dovich [PDF]

open access: yes, 2006
Ya. B. Zel’dovich (1914–1987) made numerous contributions [1] to the theory of detonation, beginning with his very well known and widely translated article [2] on detonation structure that first introduced the standard Zel’dovich-von Neumann-Döring (ZND)
Shepherd, J. E., Wintenberger, E.
core   +1 more source

Active Brownian motion in a narrow channel

open access: yes, 2014
We review recent advances in rectification control of artificial microswimmers, also known as Janus particles, diffusing along narrow, periodically corrugated channels.
Ao, Xue   +5 more
core   +1 more source

Study on Applicability of Energy-Saving Devices to Hydrogen Fuel Cell-Powered Ships

open access: yesJournal of Marine Science and Engineering, 2022
The decarbonisation of waterborne transport is arguably the biggest challenge faced by the maritime industry presently. By 2050, the International Maritime Organization (IMO) aims to reduce greenhouse gas emissions from the shipping industry by 50 ...
Callum Stark   +5 more
doaj   +1 more source

A Novel Self-Deployable Solar Sail System Activated by Shape Memory Alloys

open access: yesAerospace, 2019
This work deals with the feasibility and reliability about the use of shape memory alloys (SMAs) as mechanical actuators for solar sail self-deployment instead of heavy and bulky mechanical booms.
Gianluigi Bovesecchi   +3 more
doaj   +1 more source

Viscous Marangoni propulsion

open access: yes, 2011
Marangoni propulsion is a form of locomotion wherein an asymmetric release of surfactant by a body located at the surface of a liquid leads to its directed motion.
Davis, Anthony M. J., Lauga, Eric
core   +1 more source

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