Results 1 to 10 of about 65,835 (163)
A sixteen decimal places' accurate Darcy friction factor database using non-linear Colebrook's equation with a million nodes: A way forward to the soft computing techniques [PDF]
Data in Brief, 2019 The Colebrook's equation is considered as an empirical model to accurately compute the Darcy friction factor in pipes under fully-developed turbulent flow.
Muhammad Mujtaba Shaikh +2 more
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Assessment of Friction Losses and Friction Factor in Polypropylene Pipes
Tikrit Journal of Engineering SciencesRecently, polypropylene (PPR) pipes have been increasingly used to replace galvanized iron pipes in most water transmission systems due to their ease of installation and perceived health safety. Also, PPR has engineering features that do not deteriorate
Ahmed Abdulatif Jadoua +1 more
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Lubricants, 2023 During the operation of the guide rail pair, the accuracy of the guide rail pair is decreased by friction and wear, and the overall performance of the machine tool is directly affected. The influence of surface micro-features of the slider raceway on the
Mingxia Kang, Dezheng Hua, Xiaoqiang Guo
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Experimental study of flow friction behavior in coiled tubing
Energy Reports, 2022 Coiled tubing (CT) technology has been widely applied in well cleanouts, drilling plug, and shale oil and gas fracturing. Fluid flow in CT produce a more significant flow friction pressure loss because of the long length and small tubing diameter coiled ...
Shihui Sun +3 more
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Experimental study on the use of aluminum oxide and copper oxide nanoparticles to improve the thermal hydraulic performance of Peugeot 206 radiator [PDF]
مجله مدل سازی در مهندسی, 2022 In this work, Nusselt number and friction factor in the tube side of car radiator which is a type of fin and tube heat exchanger are experimentally determined.
hassan Hajabdollahi, vahid ghamari
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Energies, 2022 The performance of heat exchangers is severely limited by airside thermal resistance. The effect of redirection louvers (RLs) on the airside thermal performance of a compact flat-tube louvered fin heat exchanger was investigated.
Arslan Saleem, Man-Hoe Kim
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Effect of V-cut on the performance of a longitudinal vortex generator using CFD [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2022 Computational analysis is conduct to investigate the comparative study between V-cut vortex generator and without Vcut vortex generator at different spacing lengths. Water is the working fluid, and the Reynolds number is varying in the range of 300 to 1,
Ishu Shukla +2 more
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Nanomaterials, 2020 A new micro heat exchanger was analyzed using numerical formulation of conjugate heat transfer for single-phase fluid flow across copper microchannels. The flow across bent channels harnesses asymmetric laminar flow and dean vortices phenomena for heat ...
Muhammad Zia Ullah Khan +8 more
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Experimental Investigation of the Thermofluid Characteristics of Shell-and-Plate Heat Exchangers
Energies, 2020 An experimental study regarding the thermofluid characteristics of a shell-and-plate heat exchanger with different chevron angles (45°/45°, 45°/65°, and 65°/65°) with a plate diameter of 440 mm was carried out. Water was used as the working fluid on both
Howard Lee +3 more
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On Input Market Frictions and Estimation of Factors' Demand [PDF]
Southern Economic Journal, 2011 In this article, we explore the impact of imperfectly competitive input markets on production function estimation. First‐order profit‐maximizing conditions are altered when frictions in input markets cause the elasticity of input supply to the firm to be finite.
Arnaud Dupuy, Todd Sorense
openaire +6 more sources