Results 21 to 30 of about 1,478,939 (299)

Influence of submerged entry nozzle on funnel mold surface velocity

open access: yesHigh Temperature Materials and Processes, 2023
In this article, physical and numerical simulation of the flow field in flexible thin slab caster funnel mold at high casting speed is carried out with a five-hole submerged entry nozzle (FHSEN), and characteristics of the flow field on funnel mold ...
Zhang Limin   +4 more
doaj   +1 more source

Surface Rejuvenation Model for Turbulent Thermophoresis Velocity

open access: yesEngineering Proceedings, 2023
A mathematical presentation of the surface rejuvenation model is used to relate the mean velocity and temperature distribution to the mean vortex dwell time and approach distance.
Ming-Chi Chiou, Hung-Yih Tsai
doaj   +1 more source

Shallow S-wave Velocity Profile Estimation using Surface Velocity and Microtremor HVSR with a Linear Velocity Increase Approach

open access: yesJournal of Mathematical and Fundamental Sciences, 2023
We propose a simple method for 1D S-wave velocity (Vs) profile estimation using a measured surface S-wave velocity (V1) and peak frequency of the observed microtremor horizontal-to-vertical spectral ratio (HVSR).
Andi Muhamad Pramatadie   +2 more
doaj   +1 more source

Accurate computation of surface stresses and forces with immersed boundary methods [PDF]

open access: yes, 2016
Many immersed boundary methods solve for surface stresses that impose the velocity boundary conditions on an immersed body. These surface stresses may contain spurious oscillations that make them ill-suited for representing the physical surface stresses ...
Colonius, Tim   +3 more
core   +2 more sources

A Combined Approach for Filtering Ice Surface Velocity Fields Derived from Remote Sensing Methods

open access: yesRemote Sensing, 2017
Various glaciological topics require observations of horizontal velocities over vast areas, e.g., detecting acceleration of glaciers, as well as for estimating basal parameters of ice sheets using inverse modelling approaches. The quality of the velocity
Christine Lüttig   +2 more
doaj   +1 more source

Temperature jump and slip velocity calculations from an anisotropic scattering kernel [PDF]

open access: yes, 2005
This article deals with the problem of temperature jump and slip velocity at the wall in gas/surface interaction. A consistent modelling of an impermeable surface involving an anisotropic scattering kernel developed in previous works is used to establish
Dadzie, S. Kokou, Méolens, J. Gilbert
core   +1 more source

Physical modeling of glacier contact with bedrock (experiment)

open access: yesЛëд и снег, 2015
Studies of the adhesive strength of glacial ice connection with bedrock has been studied using the analysis of the amplitude-frequency characteristics of acoustic emission (AE) in the frequency range from 15 Hz to 20,000 Hz.
V. P. Epifanov   +2 more
doaj   +1 more source

Water Surface and Velocity Measurement-River and Flume [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Understanding the flow of water in natural watercourses has become increasingly important as climate change increases the incidence of extreme rainfall events which cause flooding.
J. H. Chandler   +3 more
doaj   +1 more source

Experimental investigation on free surface vortices driven by tangential inlets [PDF]

open access: yes, 2016
Particle Image Velocimetry (PIV) measurements have been carried out in order to analyze the structure of free surface vortices in a promoting geometry with two tangential inlets. Velocity fields associated to the free surface vortex have been obtained at
Caruso, Gianfranco   +3 more
core   +1 more source

SURFACE FLOW VELOCITY MEASUREMENTS FROM UAV-BASED VIDEOS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Most measuring methods for determining the volumetric flow rate or surface flow velocity have in common that they cannot be safely used under extreme outflow conditions. Especially in catastrophic situations, it is of particular interest to determine the
J. Brauneck, T. Gattung, R. Jüpner
doaj   +1 more source

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