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RISNumerical Simulation of Gravity Current Front
Publisher: American Society of Civil Engineers
Abstract: The present study investigates the dynamics of gravity current fronts experimentally and theoretically. Two typical fronts of gravity currents on the inclined boundaries are considered. One is the front of inclined plumes ...
Improved Filter Criterion for Cohesionless Soils
Publisher: American Society of Civil Engineers
Abstract: The capability of filters to retain cohensionless base soils is studied through a combination of a physical model of soil particle transport and statistical analysis of laboratory data. It is found that the ratio DF15/DB85, ...
Analysis of Inclined Wall Plume by the k-ε Turbulence Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The similarity solution of inclined wall plume is obtained analytically. The mathematical model used herein consists of the continuity equation of flow, the momentum balance equation in the flow ...
Horizontal Sigma Coordinate System for River-Flow Models
Publisher: American Society of Civil Engineers
Abstract: Because of complicated channel geometry, horizontal coordinates are important in accurate and efficient computations of river flow. We propose a simplified horizontal coordinate system for river-flow simulation, referred ...
Semi-Active Sloshing Suppression Control of Liquid in Vessel With Bulkhead
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A semi-active sloshing suppression control method for the contained liquid in the closed vessel is presented. The presented method uses the air spring effect of the gas chamber on the liquid ...
Mixed Layer Depth and Sea Surface Warming under Diurnally Cycling Surface Heat Flux in the Heating Season
Publisher: American Meteorological Society
Abstract: AbstractIn the present study, large-eddy simulations (LESs) were performed to investigate mixed layer depth (MLD) and sea surface warming (SSW) under diurnally cycling surface heat flux in the heating season, in which a ...
Dynamics of Three-Dimensional Inclined Thermal
Publisher: American Society of Civil Engineers
Abstract: The flow dynamics of a three-dimensional thermal is investigated experimentally and theoretically. The lateral view and the plan view of the three-dimensional thermal are recorded by video camera. Variations of the maximum ...
Expressions of Friction Force of a Four-Point Contact Linear Ball Bearing With Two Rows Under Low-Speed Operation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article deals with the expressions of friction force of a four-point contact linear ball bearing with two rows under low-speed operation. First, the slip velocity on a contact area and the equilibrium of moments acting ...
Experimental Evaluation of Steel Columns under Seismic Hazard-Consistent Collapse Loading Protocols
Publisher: ASCE
Abstract: This paper presents results from 21 large-scale experiments on steel columns that examined their collapse behavior as related to steel moment resisting frames (MRFs). The test specimens included wide-flange and square ...