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New Near-Wall Treatment for Suspended Sediment Transport Simulations with High Reynolds Number Turbulence Models
Publisher: American Society of Civil Engineers
Abstract: A new approach is proposed to treat the bottom boundary conditions for suspended sediment transport modeling, which works with turbulence models using wall functions. New boundary conditions for suspended sediment are ...
Semianalytical Solutions for One-Dimensional Unsteady Nonequilibrium Suspended Sediment Transport in Channels with Arbitrary Eddy Viscosity Distributions and Realistic Boundary Conditions
Publisher: American Society of Civil Engineers
Abstract: This paper presents a new semianalytical approach for the solution of suspended sediment transport in channels under uniform conditions using generalized integral transform technique (GITT). Comparing with previous analytical ...
Torsional Response of Unsymmetric Buildings to Incoherent Ground Motions
Publisher: American Society of Civil Engineers
Abstract: The behavior of unsymmetric buildings excited by incoherent seismic ground motions is studied, and the assessments and information reported make it possible to gain valuable insight into the resulting dynamic response. The ...
Discussion of “Divergence Form for Bed Slope Source Term in Shallow Water Equations” by Alessandro Valiani and Lorenzo Begnudelli
Publisher: American Society of Civil Engineers
Erratum:
Publisher: American Society of Civil Engineers
Erratum: “Scaling Laws for Ultra-Short Hydrostatic Gas Journal Bearings” [Journal of Vibration and Acoustics, 2005, 127(3), pp. 254–261]
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The exponents of the clearance to radius term (C∕R) in the scaling law for damping ratio ζ in Eqs. 19,20 were inadvertently switched between these two equations. Equations 19,20 should ...
Scaling Laws for Ultra-Short Hydrostatic Gas Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The journal bearings of the MIT micro-devices are located at the outer periphery of the rotor and are designed to operate at rotational speeds of order two million rpm in order to enable ...
Effects of Bearing Stiffness Anisotropy on Hydrostatic Micro Gas Journal Bearing Dynamic Behavior
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The high-speed microhydrostatic gas journal bearings used in the high-power density MIT microengines are of very low aspect ratio with an L∕D of less than 0.1 and are running at surface speeds ...
Finding All Solutions to Unconstrained Nonlinear Optimization for Approximate Synthesis of Planar Linkages Using Continuation Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Generally, approximate kinematic synthesis of planar linkage is studied using optimization method. But this method has two defects: i) the suitable initial guesses are hard to determine and ii) ...
Data-Driven Approach for Generating Tricomponent Nonstationary Non-Gaussian Thunderstorm Wind Records Using Continuous Wavelet Transforms and S-Transform
Publisher: ASCE
Abstract: Strong thunderstorm winds cause damage to structures. However, the available number of the tricomponent thunderstorm wind record with a subsecond sampling time interval is limited. In the present study, a record-based ...