Results 51 to 60 of about 549,955 (335)

Design of Archimedes Screw Turbine by Multi-step Selections on Parameter Pitch Distance, Blade Number, and Blade Angle [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
One of the water turbines called an Archimedes screw turbine (ASTs) is appropriate to run in a low head of just less than 5 m and works at a wide range of discharge operations.
Sarjito   +5 more
doaj   +1 more source

On the Flow through Turbine Blades

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1947
この論文は蒸汽夕ービン翼の間の流れを理論的に計算した結果で,この種の問題に空氣力學的方法を導入すべく着手した最初の計算である.故にまずタービン翼列の流れ,それにより翼のうける力等の一般的性質を知るのを目的とし,そのために計算を能う限り簡單にした.對稱翼で完全流體の二次元流れと假定したのもそのためである.したがつて得られた計算結果は夕ービン翼列の流れの極く大略を示すものであつて,さらに精しい理論的計算法,各種形状の翼の問題,粘性の影響等についてはつぎの機會に述べたいと思う.
openaire   +3 more sources

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications

open access: yesAdvanced Materials, EarlyView.
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Chao Hsuan (Joseph) Sung   +15 more
wiley   +1 more source

Optimization the shape of the Francis hydraulic turbine [PDF]

open access: yesE3S Web of Conferences, 2020
The article presents one of the possible methods for optimizing the blade shape of a Francis radial-axial hydraulic turbine. The method for optimizing the shape of the turbine blade is based on the criterion of the maximum mechanical moment developed by ...
Kurir Valerij
doaj   +1 more source

Toward Long‐Lasting Slippery Surfaces for Condensation and Icephobicity: From Lubricant‐Infused to Liquid‐Like Surfaces

open access: yesAdvanced Materials Interfaces, EarlyView.
Schematic of two representative slippery surface: Lubricant‐infused surface (LIS) and liquid‐like surface (LLS) and its application in condensation and icephobic surface ABSTRACT Slippery surfaces that minimize contact line pinning and enable high droplet mobility have emerged as promising solutions for enhancing condensation and anti‐icing performance.
Jun Soo Kim   +5 more
wiley   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk   +2 more
wiley   +1 more source

Computational Fluid Dynamics Prediction of a Modified Savonius Wind Turbine with Novel Blade Shapes

open access: yesEnergies, 2015
The Savonius wind turbine is a type of vertical axis wind turbine (VAWTs) that is simply composed of two or three arc-type blades which can generate power even under poor wind conditions.
Wenlong Tian   +3 more
doaj   +1 more source

Prediction of sediment wear of francis turbine with high head and high sediment content

open access: yesFrontiers in Energy Research, 2023
Wear of runner blades is a common problem affecting the operational reliability of turbines with high head and high sediment content. In order to accurately predict the wear of the turbine runner blade, based on the solid-liquid two-phase flow equation ...
Jun Pan   +5 more
doaj   +1 more source

Next Generation of Thermal Barrier Coatings with High Temperature Metal‐Silicide Metamaterials

open access: yesAdvanced Optical Materials, EarlyView.
Thermal metamaterials have emerged as a powerful platform in the engineering of radiative heat transfer across a broad range of applications, including thermal imaging, passive cooling, and thermo‐photovoltaics. Here, a novel application is presented for metamaterials: thermal dual barrier coatings (TDBCs).
Ali Jishi   +15 more
wiley   +1 more source

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