Results 61 to 70 of about 628,564 (131)

Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pump [PDF]

, 2013
Among several different measurement techniques that have been already performed and presented in a radial impeller pump model including PIV, a directional pressure probe has been used to obtain mean velocity field and stagnation pressure between impeller
DAZIN, Antoine, BOIS, Gérard, BAYEUL-LAINÉ, Annie-Claude, CHERDIEU, Patrick, DUPONT, Patrick   +4 more
core   +1 more source

Numerical Simulation and Analysis of the Cavitation Noise Characteristics of an IMP Propulsor

Polish Maritime Research
The objective of this study is to ascertain the cavitation noise characteristics of an integrated motor pump-jet (IMP) propulsor. The far-field cavitation radiation noise of the propulsor is analysed using computational fluid dynamics and acoustic ...
Li Qiao, Abdullah Shahrir, Rasani Mohammad Rasidi Mohammad   +2 more
doaj   +1 more source

The influence of a composite duct on the hydrodynamic and vibration characteristics of a pump-jet propulsor

Zhongguo Jianchuan Yanjiu
ObjectiveTo address the lightweight and vibration reduction needs of pump-jet propulsors, this study proposes the use of carbon fiber-reinforced composites （CFRC） in propulsor ducts.MethodFirst, a two-way CFD/FEM fluid-structure interaction （FSI） method ...
Mengzheng ZHANG, Xinming LI, Han LI, Qiaogao HUANG, Denghui QIN, Kechun SHEN   +5 more
doaj   +1 more source

Case Study 2: High Energy Abrasive Service Pump Upgrade

, 2009
Case StudyA refining company in the gulf coast had been experiencing accelerated wear on their coke cutting jet pump resulting in major expenditure and down time on a 6-10 month cycle.
Summa, Calvin, McPherson, Scott
core   +1 more source

A new structure of Tesla coupled nozzle in synthetic jet micro-pump

, 2020
Synthetic jet pump is a potential technique to improve the pumping performance by introducing a smart structure which can enhance counter-rotating vortexes.
Nguyen, Nam-Trung, Dao, Dzung Viet, Tran, Canh-Dung, Nguyen, Thanh Viet, Dinh, Toan, Phan, Hoang-Phuong, Pham, Phuc Hong, Nguyen, Tuan-Khoa, Dau, Van Thanh, Duc, Trinh Chu, Bui, Thanh Tung   +10 more
core   +1 more source

Enhancement of Pump/Plant Performance by Correct Evaluation of Process Fluid Viscosity Variations and Pump Geometry

, 2016
Case StudyCase Study 16: In the modern pump industry, processed fluids are characterized by a wide spectrum of viscosity values. An unpredicted variation of actual process fluid properties, including viscosity, may lead to unexpected pump performance ...
Cicatelli, Giancarlo, Schiavello, Bruno
core   +1 more source

Abnormal Vertical Pump Suction Recirculation Problems Due To Pump-System Interaction [PDF]

, 2004
Lecturepg. 18It is well documented that the proper operation of vertical centrifugal pumps is greatly dependent upon the entire pump/piping system, which includes the piping geometry and the system operating conditions.
Price, Stephen M., Smith, Donald R., Schiavello, Bruno   +2 more
core   +1 more source

Spectra of magnetic perturbations triggered by pellets in JET plasmas [PDF]

, 2010
Aiming at investigating edge localised mode (ELM) pacing for future application on ITER, experiments have been conducted on JET injecting pellets in different plasma configurations, including high confinement regimes with type-I and type-III ELMs, low ...
Poli, F., Lang, P.T., F.M. Poli, Sharapov, E.E., Lang, P., Alper, S., Sharapov, S. E., Poli, F. M., JET-EFDA Contributors, B. Alper, null null, Poli, F. M. (Francesca), S.E. Sharapov, HASH(0x55a67fc0d2b0), Lang, P. T., HASH(0x55a67f978e80), H.R. Koslowski, Koslowski, H. R., Poli, F.M., Sharapov, S., P.T. Lang, Sharapov, S. E. (Sergei E.), Koslowski, H., Alper, B.   +23 more
core   +1 more source

Vertical Turbine Pump Reliability Improvement [PDF]

, 2018
Case StudyThe subject pump was designed and installed when pipeline pressure was estimated high based on a higher production volume. The selected multistage vertical turbine-pumps are generically prone to vibration issues due to its flexible shaft design.
Zhao, Yve
core   +1 more source

A Comparative Numerical Study of Hydrodynamic and Acoustic Performance Between Contracted and Loaded Tip Pump-Jet and Conventional Pump-Jet

Journal of Marine Science and Engineering
This study employs a Contracted and Loaded Tip (CLT) propeller to replace the conventional pump-jet rotor, and a comparative analysis is conducted using the Detached Eddy Simulation (DES) method. The reliability of the numerical method is first validated
Yu Zhao, Chao Wang, Cong Sun, Yi-Ming Hu, Hao-Yu Liu, Min Liu   +5 more
doaj   +1 more source