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RISNumerical Simulation of Cavitation Around a Hydrofoil and Evaluation of a RNG κ-ε Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavitating flow around a hydrofoil was simulated using a transport equation-based model with consideration of the influence of noncondensable gases. The cavity length and the pressure distributions ...
Simulations and Measurements of Pressure Oscillations Caused by Vortex Ropes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pressure oscillations caused by vortex rope were measured in the draft tube of a prototype Francis turbine. The three-dimensional, unsteady Reynolds-averaged Navier-Stokes equations with the RNG ...
Methods of Calculating Wind Loads on Long-Span Girder Bridges with Tall Piers and Comparison of Values
Publisher: American Society of Civil Engineers
Abstract: Calculating wind resistance is an important process in the design of highway bridges. The current codes of many countries include different rules and formulas regarding the calculation of wind resistance. In this paper, ...
Integration of Statistics- and Physics-Based Methods—A Feasibility Study on Accurate System Reliability Prediction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Component reliability can be estimated by either statistics-based methods with data or physics-based methods with models. Both types of methods are usually independently applied, making it difficult to estimate the joint ...
A Partial Safety Factor Method for System Reliability Prediction With Outsourced Components
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: System reliability is usually predicted with the assumption that all component states are independent. This assumption may not accurate for systems with outsourced components since their states are strongly dependent and ...
Modeling and Analysis of the Transient Behavior of an Elastic Metamaterial as a Generalized Cosserat Continuum
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Metamaterials are man-made materials engineered to possess certain desired and often counterintuitive properties. It is well-known that elastic metamaterials may exhibit unusual bulk elastic properties when subject to ...
Stability Assessment of Bolt-Reinforced Rock Slopes Considering Corrosion Effects
Publisher: American Society of Civil Engineers
Abstract: Abstract In practice, bolts are commonly used to stabilize rock slopes. It is well recognized
that anchor bolts may experience corrosion during their service life, thus leading
to a reduction in anchoring effectiveness. ...
A Utility Copula Approach for Preference Functions in Engineering Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Utility copula functions (Abbas, 2009, “Multiattribute Utility Copulas,†Oper. Res., 57(6), pp. 1367–1383) construct multiattribute utility surfaces by combining individual vonNeumann Morgenstern utility assessments ...
Low Temperature Sintering of ZnO–TiO2 Ceramics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vanadium pentoxide (V2O5) was chosen as a sintering aid to lower the sintering temperature of the ZnO–TiO2 system. The effect of V2O5 on the sintering behavior and material properties of ZnO–TiO2 ceramics and cermets ...
Numerical Simulation of Three-Dimensional Cavitation Around a Hydrofoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavitation around a hydrofoil has significant three-dimensional features. The full cavitation model and a RNG k−ɛ turbulence model with a modified turbulence viscosity coefficient and which related ...