Results 1 to 10 of about 54,421 (199)

Investigation of flow-induced noise reduction in high-specific-speed centrifugal pumps using bionic blades [PDF]

Scientific Reports
To reduce the flow-induced noise of centrifugal pumps and reveal the noise source characteristics inside the pumps, this paper designs a bionic blade based on the “tubercle effect” of humpback whales.
Yongxin Jin, Tao Cheng, Jie Fu, Guangtai Shi, Lei He   +4 more
doaj   +2 more sources

Design and Characteristic Analysis of a New Type of Hydraulic Pulsation Suppressor [PDF]

E3S Web of Conferences, 2021
In order to decrease the pressure pulsation of high-pressure hydraulic system and speed up the process of high-pressure hydraulic system, a new type of hydraulic pulsation suppressor is designed.
Yuan Jun, Jiang Hang, Fang Zheng-yan, Wang Tian-sheng, Luo Zhi, Jiang Feng-xian, Yin Gui-hong   +6 more
doaj   +1 more source

Simulation and Experimental Analysis of Pressure Pulsation Characteristics of Pump Source Fluid

Applied Sciences, 2021
The output flow pulsation characteristics of the hydraulic pump due to the structural characteristics may cause pump source fluid pressure pulsation and even cause the equipment to vibrate, which will affect the life and working reliability of the ...
Junzhe Lin, Yuanyuan Wang, Shenghao Zhou, Wenjie Wu, Hui Ma, Qingkai Han   +5 more
doaj   +1 more source

Research Status, Critical Technologies, and Development Trends of Hydraulic Pressure Pulsation Attenuator

Chinese Journal of Mechanical Engineering, 2021
Hydraulic pumps are a positive displacement pump whose working principle causes inherent output flow pulsation. Flow pulsation produces pressure pulsation when encountering liquid resistance.
Yan Wang, Tongsheng Shen, Chunsen Tan, Jian Fu, Shengrong Guo   +4 more
doaj   +1 more source

A Study on the Cavitation and Pressure Pulsation Characteristics in the Impeller of an LNG Submerged Pump

Machines, 2021
Based on CFD analysis technology, this paper studies the cavitation performance of an LNG submerged pump and the pressure pulsation characteristics under cavitation excitation.
Wei Li, Shuo Li, Leilei Ji, Xiaofan Zhao, Weidong Shi, Ramesh K. Agarwal, Muhammad Awais, Yang Yang   +7 more
doaj   +1 more source

Experimental Investigation on the Effect of the Staggered Impeller on the Unsteady Pressure Pulsations Characteristic in a Pump

Energies, 2022
High−energy pressure pulsation induced by rotor−stator interaction (RSI) is the primary source of flow−induced vibration noise in the pump, affecting the pump’s stability and system operation. In order to find an effective method to suppress the pressure
Dan Ni, Feifan Wang, Bo Gao, Yang Zhang, Shiyuan Huang   +4 more
doaj   +1 more source

Investigation of Unsteady Pressure Pulsations of Reactor Coolant Pump Passage under Flow Coast-down

Machines, 2023
In order to obtain the pressure pulsations of a reactor coolant pump during flow coast-down conditions, the time-domain characteristics of the flow passage under different times of flow coast-down were calculated by numerical calculation.
Daoxing Ye, Jinchen Wu, Anlin Liu, Junlin Chen, Fengli Zhai, Xide Lai   +5 more
doaj   +1 more source

Pressure Distribution on the Inner Wall of the Volute Casing of a Centrifugal Pump

Science and Technology of Nuclear Installations, 2022
In order to grasp the distribution characteristics of the pressure field on the inner wall of the volute casing of an atypical open impeller centrifugal pump, the instantaneous pressure at different operating conditions was experimentally measured under ...
Yu-Liang Zhang, Jin-Fu Li, Tao Wang, Jun-Jian Xiao, Xiao-Qi Jia, Li Zhang   +5 more
doaj   +1 more source

Numerical Study on Internal flow Field Dynamic Performance of Scramjet [PDF]

MATEC Web of Conferences, 2019
The pressure pulsation caused by the combustion of the combustion chamber of the scramjet engine has a great influence on the flow and performance of the inlet.
Gao Feng, Zhao Jie, Chen Feng Li
doaj   +1 more source

Stability Analysis of Vaneless Space in High-Head Pump-Turbine under Turbine Mode: Computational Fluid Dynamics Simulation and Particle Imaging Velocimetry Measurement

Machines, 2022
When the Francis-type reversible pump-turbine runs under partial load, the pressure pulsation amplitude and frequency in vaneless space are high, posing a serious threat to the stability of unit operation.
Wanquan Deng, Lianchen Xu, Zhen Li, Wen Tang, Xiaolong Wang, Linmin Shang, Demin Liu, Xiaobing Liu   +7 more
doaj   +1 more source