Results 31 to 40 of about 2,841 (229)

Analisis Pengaruh Pengunaan Ulstein X-Bow pada Kapal Perintis Type 750 DWT Terhadap Nilai Hambatan dengan Metode Computational Fluid Dynamics

open access: yesRekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2022
ABSTRAK Hambatan merupakan aspek penting yang perlu diperhatikan dalam mendesain sebuah kapal. Salah satu upaya untuk mengurangi hambatan adalah memodifikasi bentuk haluan kapal dengan menggunakan Ulstein X-Bow.
Frans Simanjuntak   +4 more
doaj   +1 more source

Measurements of High-Froude Number Boat Wakes near a Seawall

open access: yesApplied Sciences
Characterizing the coastal wave environment, typically composed of wind-driven waves and boat wakes, and its interaction with built infrastructure is essential for planning sustainable and resilient shoreline development and protection.
Steven D. Meyers   +2 more
doaj   +1 more source

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  

Experimental investigation of ventilated supercavitation behind cone-shaped with different angles and disk-shaped cavitators

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2022
This paper systematically investigates the effect of the cavitator shape on the characteristics of a ventilated supercavity. These characteristics include ventilation demand, pressure behavior, and deformation of the supercavity due to gravity under ...
Van-Duyen Pham   +4 more
doaj   +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

Kelvin wake pattern at large Froude numbers [PDF]

open access: yesJournal of Fluid Mechanics, 2013
AbstractGravity waves generated by an object moving at constant speed at the water surface form a specific pattern commonly known as the Kelvin wake. It was proved by Lord Kelvin that such a wake is delimited by a constant angle${\simeq }19. 4{7}^{\circ } $.
Darmon, Alexandre   +2 more
openaire   +2 more sources

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

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

Design of HAWT Rotor for Non‐Uniform Inflow Conditions: A Theoretical and Experimental Approach for Shear Flow

open access: yesEnergy Science &Engineering, EarlyView.
This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak   +2 more
wiley   +1 more source

Free Surface Waves in Electrohydrodynamics With a Prescribed Vorticity Distribution

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Traditionally, the study of free surface flows assumed irrotationality to simplify matters, and the results seemed to have great success, notably with the Korteweg‐de Vries(KdV) equation. In the past decade, there have been attempts to remove this seemingly strong condition and replace it with a global constant vorticity equivalent to a linear
M. J. Hunt, Denys Dutykh
wiley   +1 more source

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