Results 71 to 80 of about 2,502 (183)

Relationship of Location of Flaring Gate Piers, Froude Number at Section of Starting Flare and Weir Head

open access: yes工程科学与技术, 2007
:A formula of Froude number at the section of starting flare is deduced in this paper.It is shown that the relationship exists among the location of the flaring gate piers,the Froude number at the section of starting flare,the weir head, the head loss ...
doaj  

Estimating Baseline Flow Resistance Parameters for Remote Sensing River Discharge (RSQ) From River Morphology Characteristics

open access: yesJAWRA Journal of the American Water Resources Association, Volume 62, Issue 4, August 2026.
ABSTRACT This study demonstrates that flow resistance in rivers, quantified via calibration of a modified Manning's equation, can inform its estimation from channel hydrometric information available from regional or global datasets for a limited set (N = 14) of rigorously calibrated river reaches in Alaska and with less certainty in a large set (N ...
David M. Bjerklie   +6 more
wiley   +1 more source

Internal Gravity Waves Spectrum Generated by a Cylindrical Body Moving in a Stratified Fluid

open access: yesJournal of Applied Fluid Mechanics, 2020
Internal waves are abundant in stratified environments such as the atmosphere and the ocean. In this paper, the internal waves and turbulent wake effect of a cylindrical body in a linear stratified environment is investigated.
M. Akbarnejadbaie   +4 more
doaj  

A Direct Approach for Detection of Bottom Topography in Shallow Water

open access: yesStudies in Applied Mathematics, Volume 157, Issue 2, August 2026.
ABSTRACT We propose a fast, stable, and direct analytic method to detect underwater channel topography from surface wave measurements, based on one‐dimensional shallow water equations. The technique requires knowledge of the free surface and its first two time derivatives at a single instant t★$t^{\star }$ above the fixed, bounded open segment of the ...
Noureddine Lamsahel, Carole Rosier
wiley   +1 more source

Machine Learning for Dynamic Pressure Coefficient Prediction in Vertical Water Jets

open access: yesFluids
Vertical water jets present significant challenges for hydraulic structures due to their potential to cause erosion and structural damage. This study aimed to predict the dimensionless pressure coefficient (Cp) of vertical water jets by examining the ...
Amin Salemnia   +3 more
doaj   +1 more source

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

open access: yesSedimentology, Volume 73, Issue 5, Page 1331-1351, August 2026.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey   +2 more
wiley   +1 more source

Numerical Study of Flow Characteristics on Landward Levee Slopes Under Overtopping at Different Froude Numbers

open access: yesSci
Most levees are composed of earthen materials, making their structural stability vulnerable under flood conditions, especially in the case of overtopping. This study aims to analyze the relationship between the channel Froude number and the flow behavior
Chanjin Jeong   +2 more
doaj   +1 more source

The Froude number for solitary water waves with vorticity [PDF]

open access: yesJournal of Fluid Mechanics, 2015
We consider two-dimensional solitary water waves on a shear flow with an arbitrary distribution of vorticity. Assuming that the horizontal velocity in the fluid never exceeds the wave speed and that the free surface lies everywhere above its asymptotic level, we give a very simple proof that a suitably defined Froude number $F$ must be strictly greater
openaire   +3 more sources

Investigation of heat transfer enhancement inside developing gravity-driven films along a vertical permeable plate subject to nonuniform suction

open access: yesAdvances in Mechanical Engineering, 2015
Flow and heat transfer through the boundary layers of a falling liquid film on a vertical permeable plate subject to nonuniform suction flow are analyzed in this work. The continuity, momentum, and energy equations are transformed to nonsimilar equations
Abdul-Rahim A. Khaled
doaj   +1 more source

On the Multiple Steady Flow States in Spindle Shaped Geometry of Bridge Foundations [PDF]

open access: yesJournal of Applied Fluid Mechanics
Flow hysteresis in a channel with a supercritical flow in the vicinity of a spindle-shaped bridge foundation (SSBF) with a change in flow rate has been investigated in a laboratory for the first time.
E. Aminvash   +4 more
doaj   +1 more source

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