Results 81 to 90 of about 593 (134)

Numerical simulation of hull installation of a novel outboard dynamic inlet waterjet [PDF]

openThe present thesis investigates the propulsive performance and the installation effects of a novel waterjet concept for sustainable marine propulsion.
ROSSI, TOMMASO
core  

The comparative transient prediction on hydrodynamic characteristics and flow field properties of pump-jets with accelerating and decelerating ducts. [PDF]

Sci Rep
Zhou Y, Yuan J, Cavazzini G, Fu Y, Gao Q.   +4 more
europepmc   +1 more source

Numerical investigation of tip geometry on the tip-clearance flow features of a pump-jet propulsor

, 2019
The numerical simulation for pump-jet propulsors is based on the solution of the Reynolds-Averaged Navier-Stokes (RANS) equations using a two-layer realizable k- model for turbulence closure. The computational domain is discretized into block-structured hexahedral cells.
Ji, Xue-Qin, Dong, Xiao-Qian, Li, Wei, Yang, Chen-Jun, Noblesse, Francis   +4 more
openaire   +1 more source

Passive control of wing-tip vortices through a grooved-tip design. [PDF]

Exp Fluids
Tan J, Ōtomo S, Viola IM, Liu Y.
europepmc   +1 more source

Analytical study of the effects of wind tunnel turbulence on turbofan rotor noise [PDF]

The influence of tunnel turbulence on turbofan rotor noise was carried out to evaluate the effectiveness of the NASA Ames 40 by 80 foot tunnel in simulating flight levels of fan noise.
Gliebe, P. R., Kerschen, E. J.
core   +1 more source

Aeronautical engineering: A special bibliography with indexes, supplement 82, April 1977 [PDF]

This bibliography lists 311 reports, articles, and other documents introduced into the NASA scientific and technical information system in March ...

core   +1 more source

Modeling Of Contraction Of Ionic Polymer Metal Composite (IPMC) Actuated Cylindrical Micro Pump [PDF]

, 2014
Samad, Zahurin
core  

La variación del lenguaje de especialidad en artículos científicos [PDF]

, 2008
Carrió Pastor, María Luisa
core   +1 more source

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Effects of duct parameter on pump-jet propulsor unsteady hydrodynamic performance

Ocean Engineering, 2021
Abstract This work aims to investigate the effects of duct parameter on the open water performance of pump-jet propulsor. Five duct parameters are considered, including the length-diameter ratio, the incidence angle, the shrinkage ratio of duct inlet, the expansion ratio of duct outlet and the tip clearance ratio.
Qiaogao Huang, Han Li, Guang Pan, Xinguo Dong   +3 more
openaire   +3 more sources

Wake instabilities of a pre-swirl stator pump-jet propulsor

Physics of Fluids, 2021
The wake of a pump-jet propulsor (PJP) with a pre-swirl stator is investigated using stress-blended eddy simulations. The flow field is analyzed in detail through a systematic comparison of the wake morphology under different loading conditions, allowing the destabilization process and the mechanism of wake instabilities to be inspected.
Han Li, Qiaogao Huang, Guang Pan, Xinguo Dong   +3 more
openaire   +3 more sources