Flow Measurement and Instrumentation最新文献

Design, simulation, and experimental analysis of water hydraulic artificial muscle joint flow replenishment valve

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-04-03 DOI: 10.1016/j.flowmeasinst.2025.102903

Yong Yang , Zengmeng Zhang , Yunrui Jia , Dayong Ning , Yongjun Gong

引用次数: 0

Study of rheological vibration of high-pressure differential string multistage control valve

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-04-02 DOI: 10.1016/j.flowmeasinst.2025.102906

Haozhe Jin, Zhansong Xu, Xiaofei Liu, Chao Wang

{"title":"Study of rheological vibration of high-pressure differential string multistage control valve","authors":"Haozhe Jin, Zhansong Xu, Xiaofei Liu, Chao Wang","doi":"10.1016/j.flowmeasinst.2025.102906","DOIUrl":"10.1016/j.flowmeasinst.2025.102906","url":null,"abstract":"<div><div>Coal chemical system is faced with high temperature, high pressure difference and large flow rate and other harsh conditions, and the control valve is a key control element in the whole coal chemical system. This study employs experimental methods to validate the numerical model accuracy and utilizes fluid-structure interaction analysis to investigate the vibration characteristics and underlying mechanisms of series multi-stage control valves. Set the inlet pressure to 18.7 MPa, the outlet pressure to 2.9 MPa, and the fluid is water, based on the flow characteristics of the string multi-stage valve under complex working conditions. The vibration characteristics of the valve under five different openings are compared and analyzed, and the resonance response of the intrinsic frequency and modal frequency are studied. The results show that the maximum deformation of the valve reaches 0.011763 mm at 80 % opening; the maximum stress intensity value can reach 199.7Mpa, which has the risk of fluid impact damage; The valve opening directly affects the flow rate and fluid velocity. When the opening is small, the fluid velocity increases, which can easily lead to turbulence and vortex formation, thereby inducing vibrations. Conversely, when the opening is large, the fluid velocity decreases, resulting in smoother flow and reduced vibrations. The vibration damage caused by the tandem multistage regulating valve is mainly due to the influence of vibration positive stress. The location of stress and deformation changes will not change with the change of opening, while the change of opening has a significant effect on the stress value and deformation value. The resonance frequency of the control valve is about 671HZ at low frequency, which has a greater impact on the upper valve body and valve stem. To provide a research basis for the study of vibration and noise reduction of string type multistage control valve.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"104 ","pages":"Article 102906"},"PeriodicalIF":2.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on suppression of flow-induced noise in gas turbine fuel control valves

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-04-02 DOI: 10.1016/j.flowmeasinst.2025.102904

Fu-qiang Chen , Qin-rong Cai , Xue-yang Wei , Qian Xu , Zhi-jie Zhu , Wang-kou Liu , Xue-fei Fan

{"title":"Study on suppression of flow-induced noise in gas turbine fuel control valves","authors":"Fu-qiang Chen , Qin-rong Cai , Xue-yang Wei , Qian Xu , Zhi-jie Zhu , Wang-kou Liu , Xue-fei Fan","doi":"10.1016/j.flowmeasinst.2025.102904","DOIUrl":"10.1016/j.flowmeasinst.2025.102904","url":null,"abstract":"<div><div>This study aims to address the lack of a well-established design method for fuel control valves in gas turbines, specifically in relation to noise comprehension and mitigation. It utilizes a theoretically validated and widely used precise numerical method to understand how flow induced noise is generated, evaluate the effectiveness of porous plates in noise suppression, and propose an optimized design method for reducing fuel control valve noise. Results reveal that the bias flow effect leads to an uneven force distribution at the valve core and an uneven flow in the outlet pipe. This uneven flow generates numerous vortices at valve throat, resulting in aerodynamic noise. Based on the understanding of the noise generation mechanism, it is found that using porous plates can effectively correct the bias effect at the valve core and suppress the eddy currents generated by bias current. Furthermore, in the pursuit of achieving an optimal design for noise reduction, a sensitivity analysis is performed and the impact on noise suppression varies across different parameters is observed. This study aims to investigate the mechanisms behind valve noise and explore suppression methods, ensuring the safe operation of gas turbine fuel control valves.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"104 ","pages":"Article 102904"},"PeriodicalIF":2.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on transient characteristics and cavitation phenomenon of faulty rotor pump

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-28 DOI: 10.1016/j.flowmeasinst.2025.102899

Jiadi Lian , Hubing Zhang , Yibin Li , Hangqing Xie , Jing Xu

{"title":"Research on transient characteristics and cavitation phenomenon of faulty rotor pump","authors":"Jiadi Lian , Hubing Zhang , Yibin Li , Hangqing Xie , Jing Xu","doi":"10.1016/j.flowmeasinst.2025.102899","DOIUrl":"10.1016/j.flowmeasinst.2025.102899","url":null,"abstract":"<div><div>In contemporary refrigeration systems, the refrigerant pump serves as a critical power transmission device. This study examines the exacerbation of cavitation in refrigerant-mediated rotor pumps under multifactorial failure coupling, analyzing its correlation with performance degradation and pulsation signals. Through experimental validation, we establish a computational model that evaluates how rotational speed, pressure differential, fatigue pitting severity, crack depth, and gap dimensions collectively influence cavitation dynamics.The results demonstrate that cavitation intensity escalates nonlinearly with increasing rotational speed. Specifically, vapor fraction increases by 65.07 %, 65.24 %, and 57.76 % for pitted, cracked, and clearance-defective rotors respectively when the speed is elevated from 1305 to 1450 rpm. While higher pressure differentials lead to an overall reduction in cavitation (from 15.22 % to 14.74 % vapor fraction), localized cavitation intensifies at the inlet end-face meshing zones.Progressive failure severity reveals distinct nonlinear responses: an increase in pitting depth from 0.1 mm to 0.4 mm and crack propagation from 0.25 mm to 1 mm results in local vapor fractions rising by 3.26 % and 3.80 %, respectively; conversely, gap expansion from 0.1 mm to 0.25 mm induces a reduction of approximately 3.59 %. The established methodology provides an effective framework for diagnosing cavitation-coupled failures in rotary hydraulic systems.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"104 ","pages":"Article 102899"},"PeriodicalIF":2.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of channel slope on steep channel flow instability

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-26 DOI: 10.1016/j.flowmeasinst.2025.102900

Hsun-Chuan Chan, Yu-Zhou Lin, Po-Wei Lin

引用次数: 0

Real-time reconstruction of a slug regime with a collimated infrared transceiver

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-25 DOI: 10.1016/j.flowmeasinst.2025.102898

K. Sowndarya, M. Venkatesan

引用次数: 0

Flow measurement of pipeline fluids based on wavenumber-frequency spectrum

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-24 DOI: 10.1016/j.flowmeasinst.2025.102897

Rui Pei , Danping Jia , Zhensheng Zang , Bing Chang , Bo Liu , Yong Sun , Meng Dong

{"title":"Flow measurement of pipeline fluids based on wavenumber-frequency spectrum","authors":"Rui Pei , Danping Jia , Zhensheng Zang , Bing Chang , Bo Liu , Yong Sun , Meng Dong","doi":"10.1016/j.flowmeasinst.2025.102897","DOIUrl":"10.1016/j.flowmeasinst.2025.102897","url":null,"abstract":"<div><div>Flow is a crucial parameter in industrial production, but traditional flowmeters often face limitations due to the field measurement conditions. This paper explores the array signal processing technology used in passive sonar and details how to measure the flow rate in a pipeline through wavenumber-frequency (<span><math><mrow><mi>k</mi><mo>−</mo><mi>ω</mi></mrow></math></span>) spectrum analysis. Firstly, based on the “Taylor frozen” concept of turbulence, the feasibility of using convective velocity to measure the flow rate in a pipeline is studied, and the composition of the disturbance signal is modeled theoretically. Secondly, the signal amplitude and frequency characteristics of water and air are analyzed as the flow rate changes. The Minimum Variance Distortionless Response (MVDR) beamforming algorithm is utilized to address the “convective ridge,” and the slant stack (<span><math><mrow><mi>τ</mi><mo>−</mo><mi>v</mi></mrow></math></span>) algorithm helps identify the accurate velocity corresponding to the slope of ridge. Finally, Field experiments were performed using DN50 and DN80 pipelines equipped with piezoelectric sensors. The results showed that the relative errors of water flow and air flow were both less than ±1.0 %, which proved the effectiveness of wavenumber-frequency spectrum method for measuring flow. Therefore, it is of great engineering guiding significance to utilize passive sonar technique to measure pipeline flow.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"104 ","pages":"Article 102897"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eroded orifice flow characteristics and bionic anti-erosion of a hydraulic servo spool valve

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-24 DOI: 10.1016/j.flowmeasinst.2025.102896

Liu Xin-qiang , Chai Cheng-tian , Ji Hong , Wang Cong , Liu Fei , Xiao Yao

{"title":"Eroded orifice flow characteristics and bionic anti-erosion of a hydraulic servo spool valve","authors":"Liu Xin-qiang , Chai Cheng-tian , Ji Hong , Wang Cong , Liu Fei , Xiao Yao","doi":"10.1016/j.flowmeasinst.2025.102896","DOIUrl":"10.1016/j.flowmeasinst.2025.102896","url":null,"abstract":"<div><div>Solid particle contaminants in hydraulic oil can erode the orifices of servo spool valves, degrading their microstructure and altering their flow characteristics. To investigate this phenomenon, a computational fluid dynamics surface model was developed to simulate the effects of erosion, and its accuracy was validated through static characteristic tests. This study analyzed the flow behavior of eroded orifices and introduced a bionic anti-erosion design inspired by the structure of a desert scorpion's back. Results showed that erosion increased oil flow velocity and the incidence angle at small openings, causing the primary flow to shift away from the spool edge. In addition, the direction angle of the pressure gradient increased, resulting in the formation of a low-pressure region within the valve sleeve and complicating particle trajectories, particularly near the P→A orifice. The bionic convex structure promoted mainstream offset and micro-vortex effects, which effectively reduced erosion. Notably, under optimal parameters (R = 30, C = 5), the average erosion rates of the spool and sleeve were reduced by 43 % and 21 %, respectively. This study offers a novel approach for enhancing the durability of hydraulic valves.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"104 ","pages":"Article 102896"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel loading-sensing flow division principle against large load deviation and flow variation for high presicion hydraulic synchronous drive

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-21 DOI: 10.1016/j.flowmeasinst.2025.102891

Haigang Ding , Chengcheng Yang , Jingyi Su , Shiqi Chen , Qiang Zuo

{"title":"A novel loading-sensing flow division principle against large load deviation and flow variation for high presicion hydraulic synchronous drive","authors":"Haigang Ding , Chengcheng Yang , Jingyi Su , Shiqi Chen , Qiang Zuo","doi":"10.1016/j.flowmeasinst.2025.102891","DOIUrl":"10.1016/j.flowmeasinst.2025.102891","url":null,"abstract":"<div><div>Load deviation and flow variation are the two main factors affecting accuracy of hydraulic synchronous drive using flow dividers. This paper proposes a novel loading-sensing flow division principle, which could resist large load deviations and flow changes. Based on the principle, a load-sensing flow dividing valve (LFDV) is developed, combing with multiple functions of load sensing, flow distribution and speed regulation, which establishes a dynamic link between the pump source and the loads by load sensing. This paper describes the new flow division principle, designs the LFDV strcture, establishes a simulation model, and develops a LFDV prototype, and finally test its diverter characteristics under the conditions of time-varying loads and flow variations. The test results indicate that the proposed flow divider is almost not affected by load deviations and suitable for wide flow ranges, and its division accuracy is about 0.2 %–0.5 %, which is more than 10 times that of traditional flow dividers. This study provides a new principle and solution for hydraulic synchronous drives with high precision, high reliability and low cost.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"104 ","pages":"Article 102891"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A hybrid cellular automata-based topology optimization method for incompressible fluid flow channels

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2025-03-21 DOI: 10.1016/j.flowmeasinst.2025.102867

Wang Guan , Guangfei Xu , Linyuan Kou , Wang Li , Hongping Liu , Le Xu , Xu Wang

引用次数: 0