Results 61 to 70 of about 10,932 (224)

Effects of Cavitation on Rotordynamic Force Matrices [PDF]

open access: yes, 1988
When designing a turbomachine, particularly one which is to operate at high speed, it is important to be able to predict the fluid-induced forces, both steady and unsteady, acting on the various components of the machine.
Arndt, N., Brennen, C. E., Franz, R.
core  

NaHSO3 as a Key Component in Developing Enhanced Performance Electrolytes for All‐Iron Redox Flow Batteries

open access: yesBattery Energy, Volume 4, Issue 5, September 2025.
A novel electrolyte for all‐iron redox flow batteries has been proposed with NaHSO3 as a key component. Even in small amounts, it significantly increases the plating/stripping processes occurring in the negative half‐cell (limiting step). Thanks to the formation of a FeHSO3+ intermediate, which acts as a very effective catalyst for the metallic iron ...
Alejandro Concheso   +7 more
wiley   +1 more source

Impeller-Induced Rotor-Dynamic Forces [PDF]

open access: yes, 1989
The flow through and around the rotor of a turbomachine exerts a force on the rotor and, hence, rotor shaft and bearing system. In some circumstances this force may lead to excitation of shaft whirl in the direction of impeller rotation.
Acosta, Allan J.   +2 more
core  

Study on the Temporal and Spatial Evolution Mechanism of Rotating Cavitation in the First Stage Impeller of LNG Submersible Pump With Two‐Stage Splitter Blades

open access: yesEnergy Science &Engineering, Volume 13, Issue 9, Page 4356-4370, September 2025.
ABSTRACT This study establishes a full‐flow passage numerical model of an LNG submerged pump equipped with two‐stage splitter blades through three‐dimensional modeling. Numerical simulations validated by liquid nitrogen experiments demonstrate that at 1.4 times the design flow rate, the peak efficiency reaches 60.6%, with a maximum head of 194.93 m ...
Songyu Yao   +4 more
wiley   +1 more source

Effect of Solidity on the Leakage Flow and Related Noise in Axial-Flow Fans with Rotating Shroud Operating at Fixed Performance

open access: yesInternational Journal of Turbomachinery, Propulsion and Power
This work presents an experimental study of the effect of blade count on the flow field and the radiated noise in a low-speed axial fan with a rotating shroud.
Tayyab Akhtar   +4 more
doaj   +1 more source

Effect of Blade Outlet Angle on Unsteady Hydrodynamic Force of Closed-Type Centrifugal Pump with Single Blade

open access: yesInternational Journal of Rotating Machinery, 2014
Geometrically, the single-blade centrifugal impeller, commonly used today as a sewage pump, is not axially symmetric. For this reason, the static pressure around the impeller fluctuates greatly when the impeller is rotating, and not only the radial ...
Yasuyuki Nishi, Junichiro Fukutomi
doaj   +1 more source

Numerical Calculation of the Influence of Working Conditions and Rotational Speed on Pressure Pulsation of a Self‐Priming Pump

open access: yesEnergy Science &Engineering, Volume 13, Issue 8, Page 3954-3978, August 2025.
To accurately determine the pressure fluctuation characteristics of a specific self‐priming pump, a full three‐dimensional computational model was established, including the S‐tube, impeller domain, volute domain, gas‐liquid separation chamber, front and rear cavities, wear ring clearance, and reflux hole.
Hai‐Bing Jiang   +5 more
wiley   +1 more source

A Review of Tip Clearance in Propeller, Pump and Turbine

open access: yesEnergies, 2018
Propellers, pumps, and turbines are widely applied in marine equipment, water systems, and hydropower stations. With the increasing demand for energy conservation and environmental protection, the high efficiency and the stable operation of pumps and ...
Yabin Liu, Lei Tan, Binbin Wang
doaj   +1 more source

Control of large thermal distortions in a cryogenic wind tunnel [PDF]

open access: yes, 1983
The National Transonic Facility (NTF) is a research wind tunnel capable of operation at temperatures down to 89K (160 R) and pressures up to 900,000 Pa (9 atmospheres) to achieve Reynolds numbers approaching 120,000,000.
Gustafson, J. C.
core   +1 more source

Analysis of Windage Losses and Velocity Distribution for a Shrouded Rotating Disk [PDF]

open access: yesVolume 1: Turbomachinery, 1987
An analysis of experimental results was carried out, establishing a direct correlation between measured velocity profiles and windage losses for a rotating disk inside a shrouded stator as typically found in turbomachinery. The analysis gives information on the regions of the rotating and static parts, which have a dominant effect upon ...
openaire   +1 more source

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