Results 81 to 90 of about 628,564 (131)

MHz-Order Surface Acoustic Wave Thruster for Underwater Silent Propulsion. [PDF]

Micromachines (Basel), 2020
Zhang N, Wen Y, Friend J.
europepmc   +1 more source

Effects of Reynolds number on flow structures and broadband forces of a pump-jet propulsor under non-uniform inflow

Under non-uniform wake conditions, the effects of Reynolds-number variation on the broadband-force response of a pump-jet propulsor remain unclear. In this study, an experimentally validated large-eddy simulation method is used to systematically examine ...
Haiting Yu, Dazhuan Wu, Wei Zhao, Pei Xu, Linlin Cao, Jianwei Zhang   +5 more
core   +1 more source

Numerical investigation into the unsteady flow characteristics around a fully appended SUBOFF model combined with a pump-jet propulsor

This study investigates the unsteady forces and flow characteristics of a fully appended SUBOFF model combined with a pump-jet propulsor using a three-dimensional unsteady numerical simulation based on the SST k-omega turbulence model.
Li, Ning, 王一伟, 蔡淑婷, Wang, Yiwei, 黄仁芳, 安翼, 吴强, Huang, Renfang, An, Yi, Cai, Shuting, Wu, Qiang   +10 more
core   +1 more source

Base Plate Corrosion and Premature Bearing failure in RO Pump [PDF]

, 2018
Case StudiesOn 19th Aug 2017, abnormal noise noticed from RO (Reverse osmosis) Membrane Feed pump coupling area. Checked the vibration for pump & motor and found very high vibration at Pump Drive end. The vibration level at Pump DE Vertical recorded as 4.
Subramanian, Moorthy
core  

Inside The Sealless Pump

, 1992
Lecturepg. 29Sealless pumps are now specified as the preferred type for handling of toxic, hazardous, and environment threatening chemicals. Magnetically driven sealless pumps have emerged as the first choice, due to their simplicity of design and ease ...
Veness, J. W., Rose, S., Steer, C. J.
core   +1 more source

Recip Pump on Unstable Condensate [PDF]

, 2018
Case StudiesPump Design Conditions, Sealing/Packing System Design Features, Sealing/Packing System Failures, Pump Improvements, Conclusions and Lessons ...
Mascherpa, Luigi, Jakubiak, Jason
core  

Body shape and robustness response to water flow during development of brown trout Salmo trutta parr. [PDF]

J Fish Biol, 2018
Fenkes M, Shiels HA, Nudds RL.
europepmc   +1 more source

Recent progress and perspectives of space electric propulsion systems based on smart nanomaterials. [PDF]

Nat Commun, 2018
Levchenko I, Xu S, Teel G, Mariotti D, Walker MLR, Keidar M.   +5 more
europepmc   +1 more source

Modeling and Experimental Validation of a Bionic Underwater Robot with Undulating and Flapping Composite Propulsion. [PDF]

Biomimetics (Basel)
Zeng H, Xia M, Yin Q, Yao G, Lu Z, Luo Z.   +5 more
europepmc   +1 more source

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