Results 31 to 40 of about 22,957,653 (345)
Computer Assisted Methods in Engineering and Science, 2017 The purpose of this paper is the analysis of numerical approaches obtained by describing the Dirichlet boundary conditions on different connected components of the computational domain boundary for potential flow, provided that the domain is a rectangle.
Jan Kucwaj
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Mixed-Fidelity Design Optimization of Hull Form Using CFD and Potential Flow Solvers
Journal of Marine Science and Engineering, 2021 The present paper proposes a new mixed-fidelity method to optimize the shape of ships using genetic algorithms (GA) and potential flow codes to evaluate the hydrodynamics of variant hull forms, enhanced by a surrogate model based on an Artificial Neural ...
Gregory J. Grigoropoulos +3 more
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Numerical solution of free-boundary problems in fluid mechanics. Part 3. Bubble deformation in an axisymmetric straining flow [PDF]
, 1984 We consider the deformation of a bubble in a uniaxial extensional flow for Reynolds numbers in the range 0.1 [less-than-or-eq, slant] R [less-than-or-eq, slant] 100.
Leal, L. G., Ryskin, G.
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Towards High-Performance Linear Potential Flow BEM Solver with Low-Rank Compressions
EnergiesThe interaction of water waves with floating bodies can be modeled with linear potential flow theory and numerically solved with the boundary element method (BEM).
Matthieu Ancellin +2 more
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Increase of the Ship Fuel Consumption Due to Added Resistance in Waves
Journal of Sustainable Development of Energy, Water and Environment Systems, 2017 Added resistance in waves is the second-order steady force dependant on the ship motions. It significantly affects ship operability and cause speed loss. Therefore the required power and fuel consumption of a ship advancing in a seaway are increasing. In
Nastia Degiuli +4 more
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Journal of Marine Science and Engineering, 2020 In this study, a time-domain numerical method based on three-dimensional potential flow was developed to analyze the hydrodynamic characteristics of an inclined oscillating-water-column (OWC) wave energy converter (WEC).
Jeong-Seok Kim +5 more
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Scalar transport in compressible flow
, 1996 Transport of scalar fields in compressible flow is investigated. The effective equations governing the transport at scales large compared to those of the advecting flow are derived by using multi-scale techniques.
Aschcroft +36 more
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Analytical and Numerical Model of Sloshing in a Rectangular Tank Subjected to a Braking
Mathematics, 2023 This paper examines the movement of waves that occur in a fuel tank—both with and without a wave breaker—when a car is travelling at a constant speed and then suddenly brakes. This phenomenon is known as slosh noise, and the paper presents an analysis of
Oana-Maria Balaş +2 more
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Nonlinear porous medium flow with fractional potential pressure
, 2010 We study a porous medium equation, with nonlocal diffusion effects given by an inverse fractional Laplacian operator. We pose the problem in n-dimensional space for all t>0 with bounded and compactly supported initial data, and prove existence of a weak ...
A. Córdoba +25 more
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Vortex Structure and Kinematics of Encased Axial Turbomachines
International Journal of Turbomachinery, Propulsion and Power, 2018 This paper models the kinematics of the vortex system of an encased axial turbomachine at part load and overload applying analytical methods. Thus far, the influence of the casing and the tip clearance on the kinematics have been solved separately.
Peter F. Pelz +2 more
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