Results 31 to 40 of about 2,502 (183)

FROUDE VERSUS FROUDE IN FISH LADDER DESIGN [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2018
Hydrodynamic modelling is based on the similitude theory and the dimensional analysis. The complexity of flows in different geometric environments and fluids, requires the use of the similarity criteria in both the construction of a physical model and a ...
Carmen-Anca SAFTA   +2 more
doaj  

Analysis of resistance and flow field of submarine sailing near the ice surface

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesThis paper studies the hydrodynamic performance of the submarine sailing near the ice surface using numerical simulation method.Methodsthe Suboff full-appended model, RANS method, SST k-ω turbulence model and volume of field method are used to ...
Tiechao BAI   +4 more
doaj   +1 more source

The Froude number for solitary waves

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 1984
SynopsisThe paper is concerned with the problem of a solitary wave moving with constant form and constant velocity c on the surface of an incompressible, inviscid fluid over a horizontal bottom. The motion is assumed to be two-dimensional and irrotational, and if h is the depth of the fluid at infinity and g the acceleration due to gravity, then the ...
openaire   +2 more sources

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei   +6 more
wiley   +1 more source

Theoretical Criterion for Stability of Free Hydraulic Jump on Adverse Stilling Basins [PDF]

open access: yesJournal of Hydraulic Structures, 2014
Hydraulic jump on adverse stilling basin is an unstable phenomenon which causes some complexities in controlling of the   jump. This paper considers the stability of free hydraulic jump on adverse stilling basins from a theoretical point of view.
Javad Farhoudi, Hossein Khalili Shayan
doaj   +1 more source

Influence Mechanisms of Spatial Optimization of the “Terraced Fields‐Gully Land Reclamation Project (GLRP)” Cascades on Erosion‐Transportation Processes in Watershed in the Loess Hilly‐Gully Region of China

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Terraced fields and the Gully Land Reclamation Project (GLRP) are important soil and water conservation measures, widely constructed in China's Loess Plateau and other ecologically fragile areas in the world. However, under large‐scale governance scenarios, the impacts of the “terraced fields‐GLRP” cascade system on water and sediment ...
Zhe Gao   +9 more
wiley   +1 more source

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias   +6 more
wiley   +1 more source

Study For The Effect of Manning Roughness on Froude number in open channel(subcritical flow) [PDF]

open access: yesEngineering and Technology Journal, 2015
Knowing of flow resistance in channels is necessaryfor many purposes such as the estimation of stage-discharge relationship, and the evaluation of sediment transport from the hydraulic characteristics of the channel by means of transport formulas.All ...
Aqeel Al-Adili, Ali Sadiq A, Fadia Faroq
doaj   +1 more source

Hexapod Locomotion Across Structured and Unstructured Terrains: A Data‐Driven Review of Modeling, Control, and Validation

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT The design of a hexapod is complex and requires integration between kinematic models, control systems, and sensing. Existing literature has reviewed these sub‐systems in isolation. Since 2021, there has been no review of the field despite significant advancements in soft soil, lunar traversal, and artificial intelligence.
Akhil Rampersad, Bashan Naidoo
wiley   +1 more source

Physical Modeling of Landward Scour Due to Tsunami Bore Overtopping Seawall

open access: yesMATEC Web of Conferences, 2018
many of the post tsunami field surveys which conducted by researchers revealed that, the failure due to scour at the landward toe of the seawall due to overtopping of tsunami wave forms one of the important types of coastal defence structures failure and
Maqtan Raidan   +2 more
doaj   +1 more source

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