Results 21 to 30 of about 10,091,302 (293)

Turbulent structures, integral length scale and turbulent kinetic energy (TKE) dissipation rate in compound channel flow [PDF]

, 2017
In the present study, high data rate measurements were obtained for the streamwise and vertical velocity components using 2D Laser Doppler Velocimeter. The turbulent field in a straight compound-channel flow was characterized for three different uniform ...
Roja-Solórzano, Luís R., Bento Leal, João, Ricardo, Azevedo, Azevedo, Ricardo   +3 more
core   +1 more source

Simultaneous Measurement of Refractive Index and Flow Rate Using a Co²⁺-Doped Microfiber

Applied Sciences, 2021
This paper has proposed and experimentally demonstrated an integrated Co2+-doped microfiber Bragg grating sensor (Co-MFBGS) that can measure the surrounding liquid refractive index (LRI) and liquid flow rate (LFR) simultaneously.
Da Liu, Ran Gao, Zhipei Li, Anle Qi
doaj   +1 more source

A method and device for online magnetic resonance multiphase flow detection

Petroleum Exploration and Development, 2020
Most multiphase flow separation detection methods used commonly in oilfields are low in efficiency and accuracy, and have data delay. An online multiphase flow detection method is proposed based on magnetic resonance technology, and its supporting device
Feng DENG, Chunming XIONG, Shiwen CHEN, Guanhong CHEN, Mengying WANG, Huabing LIU, Jianjun ZHANG, Qun LEI, Gang CAO, Dongping XU, Ye TAO, Lizhi XIAO   +11 more
doaj   +1 more source

The Resulting Effect of Flow Pulsations on Calibration Constant of Acoustic Path in Ultrasonic Flowmeters

Sensors, 2022
The present paper compares, for the first time, the regimes of a pulsating turbulent flow in a smooth pipe in terms of 0.001 ≤ ω+ ≤ 0.0346 and 0.16 ≤ β ≤ 0.63 at Re ≈ 7000 with the uncertainty in estimating the flow rate by an ultrasonic flowmeter.
Anna Goltsman, Ilya Saushin
doaj   +1 more source

Dynamic Foam Characteristics during Cultivation of Arthrospira platensis

Bioengineering, 2022
This study is aimed at understanding the serious foaming problems during microalgal cultivation in industrial raceway ponds by studying the dynamic foam properties in Arthrospira platensis cultivation. A. platensis was cultivated in a 4 L bowl bioreactor
Ameer Ali Kubar, Amjad Ali, Santosh Kumar, Shuhao Huo, Muhammad Wajid Ullah, Khulood Fahad Saud Alabbosh, Muhammad Ikram, Jun Cheng   +7 more
doaj   +1 more source

AN ALTERNATIVE APPROACH TO DETERMINING THE RATE OF RUNOFF OF UNSTUDIED RIVERS (THE AMUR RIVER BASIN IN THE TRANSBAIKAL KRAI AS A STUDY CASE)

Водное хозяйство России: проблемы, технологии, управление, 2020
The article presents an approach to determining the flow rate of unexplored rivers depending on their order according to A. Scheidegger and the corresponding zoning.
Dmitry A. Shalikovskiy, Valeriy N. Zaslonovskiy, Andrey V. Shalikovskiy   +2 more
doaj   +1 more source

Effect of Error in SO₂ Slant Column Density on the Accuracy of SO₂ Transport Flow Rate Estimates Based on GEMS Synthetic Radiances

Remote Sensing, 2021
This study investigates the uncertainties associated with estimates of the long-range transport SO2 (LRT-SO2) flow rate calculated hourly using Geostationary Environment Monitoring Spectrometer (GEMS) synthetic radiances.
Junsung Park, Wonei Choi, Hyung-Min Lee, Rokjin J. Park, Seong-Yeon Kim, Jeong-Ah Yu, Dong-Won Lee, Hanlim Lee   +7 more
doaj   +1 more source

Thermal Performance of a Parabolic Trough Solar Concentrator Coupled with a Modified Flat Plate Collector for Greenhouse Heating [PDF]

Biomechanism and Bioenergy Research, 2022
In the present study, a parabolic trough solar collector (PTC) was coupled with a modified flat plate solar collector (FPC) to serve as a greenhouse heating system.
Abolfazl Ziaadini, Azam Noroozi, SeyyedMohammad JavadiMoghaddam   +2 more
doaj   +1 more source

Advances in Valveless Piezoelectric Pumps

Applied Sciences, 2021
Piezoelectric pump design is regarded as a hot research topic in the microfluidic field, and has been applied in liquid cooling, precision machinery and other relevant domains.
Qiufeng Yan, Yongkang Yin, Wanting Sun, Jun Fu   +3 more
doaj   +1 more source

Experimental Study of the Heat Transfer Enhancement in Concentric Tubes With Spherical and Pyramidal Protrusions [PDF]

Journal of Applied and Computational Mechanics, 2020
In the current research project, the thermal performance of a series of newly designed mixers has been investigated. Each mixer has two concentric cylinders comprising two annular slot flow channels around a solid cylindrical rod at the center.
Afrasyab Khan
doaj   +1 more source