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Optimizing humidification–dehumidification desalination systems: Impact of nozzle position and geometric configuration on performance and efficiency
Published 2025-03-01“…Geometric analyses revealed that cylindrical designs reduced head loss by 8%, from 4.91 mm in square prisms to 4.45 mm, while improving turbulent flow and heat and mass transfer through better air-water interaction. …”
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863
Deep learning modeling of manufacturing and build variations on multistage axial compressors aerodynamics
Published 2025-01-01“…However, due to the highly complex, turbulent, and three-dimensional flows, they have not yet been proven usable for turbomachinery applications. …”
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864
Influence of Inlet Angle of Guide Vane on Hydraulic Performance of an Axial Flow Pump Based on CFD
Published 2020-01-01“…In order to improve the hydraulic performance of pump under off-design working conditions, the influence of the inlet segment axial chord and inlet angle adjustment of the guide vane on the pump segment efficiency and flow filed was simulated by using the renormalization group (RNG) k−ε turbulent model based on the Reynolds-averaged Navier–Stokes equations. …”
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865
The Evolution of Mediation in International Conflicts from 1940s to 2020s
Published 2024-09-01“…During the third stage, in the 21st century, the political organization of the world has been undergoing a turbulent transformation at all the three levels: Westphalian system, the system of interstate relations, and political systems of individual states. …”
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866
Le déclin de l’entreprise générale de la centrale de Poissy (1870-1914)
Published 2014-09-01“…Au cœur de toutes les turbulences historiques (invasion du département de la Seine-et-Oise par l’armée prussienne en 1870) et économiques (récession de la fin du XIXe siècle), la centrale sombra dans une crise profonde dont les différents entrepreneurs furent aussi responsables. …”
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867
Criminological Scenarios of Crime Situation’s Transformation in the Context of Armed Conflict on Donbass in the Midterm
Published 2019-09-01“…The author has expertly substantiated the highest probability of developing a crime situation in the midterm in the following three scenarios: “Stagnation and slight increase” (most realistic), “Control and security” (optimistic), “Turbulent crime” (negative). It has been proved that the development of probable criminological scenarios will depend on the intensity of external and internal threats to national security. …”
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868
United Nations - African Union Cooperation In Conflict Prevention, Peacekeeping and Peacebuildin
Published 2015-12-01“…According to researches one of the most turbulent regions on continent in terms of security is the North-East Africa. …”
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869
Detailed Film Cooling Measurements over a Gas Turbine Blade Using a Transient Liquid Crystal Image Technique
Published 2001-01-01“…Results show that film injection promotes earlier laminar-turbulent boundary layer transition on the suction surface and also enhances local heat transfer coefficients (up to 80%) downstream of injection. …”
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870
TRANSREGIONAL PARTNERSHIP OF BRICS IN RUSSIAN STUDIES
Published 2016-06-01“…Under their influence will be shaped and altered their economies and unexpected moments can occur in a turbulent global economic space. Russian authors studied in detail the characteristics of each of the member countries of BRICS, which allows to mark a significant interest in the national science to the study of inter-regional cooperation in the global political and economic space. …”
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871
Numerical investigation of segmental baffle design in shell and tube heat exchangers with varying inclination angles and spacing
Published 2025-02-01“…This research uses a three-dimensional computational fluid dynamics (CFD) simulation to model turbulent fluid flow and evaluate the performance of different baffle angle configurations. …”
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872
Iraqi Stock Market Prediction Using Artificial Neural Network and Long Short-Term Memory
Published 2023-03-01“…The choice of the proper model of time series data affects the precision of the predictions, and stock market data is typically random and turbulent for various industries. To obtain forecast models of stock market data that can accurately portray reality and obtain future forecasts, these models must take all data considerations from linear and none linear trends, different influences, and other data factors, hence the research problem of obtaining a method that gives predictions of Iraq's stock market indicators that are accurate and reliable in stock analysis. …”
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873
Impact of human body shape on free convection heat transfer.
Published 2025-01-01“…Furthermore, our regression coefficients and exponents can be derived from the theorical correlation for free turbulent convection from a vertical plate, which also explains the observed independence of the heat transfer coefficient from the manikins' height. …”
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874
Problem of Harmonization of Legal Norms with the Needs of Police Investigations by Using High-Tech Instruments for Searching Information
Published 2021-03-01“…It has been determined that the transition of police structures from a reactive to a proactive paradigm is unalterable in the modern high-tech turbulent world. The problem’s structuring has been accomplished. …”
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875
INVESTIGATION OF THE POSSIBILITY OF USING A VORTEX HEAT GENERATOR IN HEAT SUPPLY SYSTEMS FOR RESIDENTIAL, INDUSTRIAL AND PUBLIC BUILDINGS
Published 2018-04-01“…Vortex heat generators are based on the principle of cavitation in a turbulent water flow. For many devices cavitation is not desirable, but in a vortex heat generator it is used as a favorable phenomenon. …”
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876
The Lift Enhancement Effect of a New Fluidic Oscillator on High-Lift Wings
Published 2025-01-01“…A deeper analysis of the fluidic oscillator’s working principle reveals that periodic oscillations dominate the turbulent kinetic energy and Reynolds shear stress, driving enhanced chordwise momentum exchange. …”
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877
THERMAL EFFECTIVENESS OF THE GAS FLOW VORTICAL HEATRELEASE INTENSIFICATION AT AXIAL AND TRANSVERSAL FLOWING-AROUND THE ROUND-TUBULAR SURFACES Part 2
Published 2015-09-01“…It may vary from 4 to 280 % as a function of their geometrical parameters which causes heat-release increasing with its simultaneous growth from vortex formation in the boundary-layer flow by the swirls generated by lunule turbulizers. For the tube of axial flow-around with hollows applied on the outer surface the vortex intensification enhances the thermal effectiveness up to 1,39 times, and in the case of the transversal flow-around tube banks with lunuled tube outer surface it does not exceed 29 % at Re = 5000. …”
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878
Performance characteristics of shell and tube heat exchanger using sectoral baffle
Published 2025-01-01“…The finite element method was used to solve continuity, momentum, energy, and k-ε turbulent equations that govern STHX. The simulation procedure (SP) was applied to STHX with a single segmental baffle (SB) and 90º, 120º, and 150º sectoral baffles (STB). …”
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879
Numerical Investigation on Heat Transfer and Pressure Drop in Silver/Water Nanofluids Flowing Through Tubes with Variable Expansion–Contraction Ratios
Published 2025-01-01“…The analysis was conducted under turbulent flow conditions and three-dimensional thermal convection in tubes subjected to a constant heat flux of 20 kW/m<sup>2</sup>, with the inlet Reynolds number maintained at approximately 20,000. …”
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880
3D Convective Urca Process in a Simmering White Dwarf
Published 2025-01-01“…The convective Urca process is not well understood and requires 3D fluid simulations to properly model the turbulent convection, an inherently 3D process. Because the neutron excess of the fluid both sets and is set by the extent of the convection zone, the realistic steady state can only be determined in simulations with real 3D mixing processes. …”
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