Results 61 to 70 of about 14,104 (341)
Alexandria Engineering Journal, 2018 Radial flow pumping rings receive the flow radially which is perpendicular on the shaft while axial flow pumping rings receive the flow in a direction parallel to the shaft (axially).
H.A. Warda +3 more
doaj +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT Investors have long recognized the importance of firms in promoting sustainability, leading to the rise of socially responsible investment (SRI). Specifically, there is a growing preference for exchange‐traded funds (ETFs) that prioritize environmental, social, and governance (ESG) principles.
Sandra Tenorio‐Salgueiro +3 more
wiley +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT This study examines the relationship between mergers and acquisitions (M&A), board characteristics, and ESG performance in BRICS companies, considering the moderating role of sectoral sensitivity. The study analyzes 11,402 observations from 2293 BRICS companies, employing Two‐Stage Least Squares (2SLS) to address endogeneity and logistic ...
Geovane Camilo dos Santos +2 more
wiley +1 more source
Acta Scientiarum: Technology, 2011 No presente trabalho, o problema de jato livre circular axissimétrico foi resolvido numericamente. A equação da conservação de massa, momento, energia e da modelagem da turbulência foram discretizadas aplicando o método de volumes finitos.
Gisely Luzia Ströher +4 more
doaj
Effect of Moving Surface on NACA 63218 Aerodynamic Performance
EPJ Web of Conferences, 2015 The main subject of this work is the numerical study control of flow separation on a NACA 63218 airfoil by using moving surface. Different numerical cases are considered: the first one is the numerical simulation of non-modified airfoil NACA 63218 ...
Yahiaoui Tayeb +2 more
doaj +1 more source
Uniform Gas Flow Distribution into Several Partial Flows under Consideration of Closable Outlets
Chemie Ingenieur Technik, EarlyView.The uniform distribution of a gas flow into several partial flows poses a challenge in various technical fields. This study presents a static flow distributor design that ensures an equal distribution of an inlet gas flow regardless of the flow rate and the number of open outlets.
Nikolas Schmidt +3 more
wiley +1 more source
Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes
Chemie Ingenieur Technik, EarlyView.A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
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Numerical Simulation of Bubble Growth in Liquid Jet Impingement on a Hot Plate
Journal of Thermal Science and Technology, 2012 Complete numerical simulations are performed for bubble growth in water jet impingement on a hot plate. The governing equations for the conservation of mass, momentum and energy are numerically solved in the liquid, vapor and air phases. The liquid-vapor
Kyungmin KIM, Gihun SON
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Characterization of a two‐phase hybrid flotation column
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study explored the performance of a novel hybrid flotation column, which combines the advantages of a mechanically agitated cell with a flotation column and compared the results with a conventional flotation column setup. The experiments were performed in an air/water two‐phase system under varying airflow rates, frother concentrations ...
Pedro Silva Aires +3 more
wiley +1 more source
Analysis of an RNG based turbulence model for separated flows [PDF]
A two-equation turbulence model of the K-epsilon type was recently derived by using Renormalization Group (RNG) methods. It was later reported that this RNG based model yields substantially better predictions than the standard K-epsilon model for ...
Speziale, C. G., Thangam, S.
core +1 more source