Results 1 to 10 of about 44,941 (309)
Energies, 2021 The turbulent pulsating flow and heat transfer in straight and 90° curved square pipes are investigated in this study. Both experimental temperature field measurements at the cross-sections of the pipes and conjugate heat transfer (CHT) simulation were ...
Guanming Guo +9 more
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Influence of pulsating hydraulic parameters on migration law of deposited particles in fracture
Meikuang Anquan, 2022 In order to improve the dredging effect of the blocked mining-induced fracture field by pulsating hydraulic scouring technology, the flow characteristics of pulsating water flow in fracture and the influence of pulsating hydraulic parameters on the ...
LIU Yingke +3 more
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Thermal Performance of a Counter-Flow Double-Pass Solar Air Heater With The Steady and Pulsating Flow [PDF]
Engineering and Technology Journal, 2023 The present work studied the influence of pulsating flow as an active method on the thermal performance of a double-pass solar air heater with a tubular solar absorber. A ball valve has been used as a pulse generator mounted at the downstream flow of the
Nassr Hussein, Sabah Ahmed, Ali Ekaid
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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
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Turbulence models in pulsating flows [PDF]
39th Aerospace Sciences Meeting and Exhibit, 2001 The performances of four low-Reynolds-number models are compared for the unsteady Reynolds-average d Navier–Stokes equations applied to the ow in a channel driven by a pressure gradient oscillating around a nonzero mean. The models considered are the one-equation Spalart–Allmaras model, the k–" model with the wall functions of Lam and Bremhorst, the k–
A. Scotti, U. Piomelli
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Applied Sciences, 2023 The performance of traditional steady grouting is sometimes limited; therefore, a new high-frequency pulsed grouting method is proposed. Through the CFD method, this paper studies the cement slurry penetration performance of cyclic grouting under the ...
Yongfeng Li +5 more
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Chemosensors, 2022 Accurate monitoring is needed for pulsating flow in many healthcare and bio applications. Specifically, real-time monitoring of pulsating blood flow provides rich information regarding a patient’s health conditions.
Chaehyun Ryu +4 more
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Case Studies in Thermal Engineering, 2023 The present work proposes a new cooling system for thermal management and cooling of photovoltaic (PV) systems. Pulsating flow with multiple jet impingement is considered by using different fluid types. Hybrid nanofluid and alumina–water nanofluid having
Samah Maatoug +7 more
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Numerical study of local heat transfer in tube bundle in pulsating flow [PDF]
E3S Web of Conferences, 2023 Forced pulsating flows enhance the heat transfer of various heat exchange equipment; however, such flows remain poorly understood. A numerical simulation was used to study how the position of a cylinder in a tube bundle affects the heat transfer during ...
Haibullina Aigul, Hayrullin Aidar
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Pulsating flow of stationary elastic-viscous fluids in flat-wall channel [PDF]
E3S Web of Conferences, 2023 In this article, a specific problem of pulsating flow of visco-elastic fluids in a flat channel in a stationary state was solved. The main goal is to study the movement of visco-elastic fluids based on simplified mathematical models and to determine the ...
Begjanov A. Sh. +2 more
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