Potential Flow Research Papers - Academia.edu (original) (raw)

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- Engineering, Heat Transfer, Boundary Layers, Multidisciplinary

A new nonlinear integral-equation model is derived in terms of hodograph variables for free-surface flow past an arbitrary bottom obstruction. A numerical method, carefully chosen to solve the resulting nonlinear algebraic equations and a simple, yet effective radiation condition have led to some very encouraging results. In this paper, results are presented for a semi-circular obstruction and are compared with

- by Song-ping Zhu
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- Mathematics, Applied Mathematics, Integral Equations, Engineering Mathematics
- by Daniel JOSEPH
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- Engineering, Multiphase Flow, Vorticity, Drag
- by Christophe Eloy
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- Engineering, Viscoelasticity, Vibration, Aeroelasticity

The current project is a study of the Laplace equation that is used nowadays in many applications related to the electrical, magnetic, gravitational potentials, steady state temperatures, and in hydrodynamics.. The system corresponds to an elliptic second order partial differential equation and is widely used in the study of the inviscid incompressible potential flow in fluid mechanics. To solve this equation, numerical methods are used and different schemes are introduced to better control the solution through stability, accuracy and consistency. In what follows, a numerical study and investigation of the 2D Laplace Equation.

- by Christopher Brennen
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- Fluid Mechanics, Marine Engineering, Fluid Dynamics, Fluids
- by Khoo Boo Cheong
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- Applied Mathematics, Classical Physics, Boolean Satisfiability, Potential Flow
- by Lakshmi Sankar
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- Engineering, Numerical Simulation, Navier Stokes, High Speed
- by Vengatesan Venugopal
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- Civil Engineering, Ocean Engineering, Maritime Engineering, Drag Coefficient
- by Patrick Moriarty
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- Wind Energy, Wind turbine, Potential Flow
- by Rickard Bensow
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- Civil Engineering, Ocean Engineering, Free Surface, Maritime Engineering
- by James Coder
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- Engineering, Turbulence, Methodology, Laminar Flow
- by Antonio Donato Nobre
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- Geomorphology, Hydrology, Modeling and Simulation, Topology

A model of a rowing scull has been developed, comprising the full motion in the symmetry plane and the interaction with the hydrodynamics. A particular emphasis has been given to the energy dissipation due to the secondary movements activated by the motion of the rowers and the intermittent forcing terms. Numerical simulations show the effectiveness of the proposed procedure. Copyright© 2008 John Wiley & Sons, Ltd.

- by Antonio Montano
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- Engineering, Dynamical Systems, Computational Fluid Dynamics, Modeling
- by Dave Tappin
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- Civil Engineering, Geology, Numerical Simulation, Case Study
- by Daniele Peri and +1
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- Verification and Validation, Multiobjective Optimization, Agricultural Biotechnology, Marine Science
- by Dracos Vassalos
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- Civil Engineering, Ocean Engineering, Performance Analysis, Free Surface
- by Avraham Hirschberg and +2
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- Engineering, Intelligent Transport System, Low Frequency, Numerical Simulation
- by Daniel Okunbor
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- Engineering, Finite element method, Finite Element, High Frequency
- by Stefan Siegel
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- Civil Engineering, Oceanography, Wave Energy, Energy Conversion
- by Behzad Shahbazi
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- Chemical Engineering, Stokes flow, Air flow, Contact angle
- by Emilio Campana
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- High Speed, Potential Flow
- by hassan haddadpour
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- Engineering, Fluid structure interaction, Finite element method, Modal Analysis
- by A. Tomiyama
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- Engineering, Multiphase Flow, Oscillations, Surface Tension

The modeling of tsunami generation is an essential phase in understanding tsunamis. For tsunamis generated by underwater earthquakes, it involves the modeling of the sea bottom motion as well as the resulting motion of the water above. A comparison between various models for three-dimensional water motion, ranging from linear theory to fully nonlinear theory, is performed. It is found that for most events the linear theory is sufficient. However, in some cases, more-sophisticated theories are needed. Moreover, it is shown that the passive approach in which the seafloor deformation is simply translated to the ocean surface is not always equivalent to the active approach in which the bottom motion is taken into account, even if the deformation is supposed to be instantaneous.

- by Denys Dutykh
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- Applied Mathematics, Classical Physics, Water Waves, Boundary Element Method
- by Jin-Keun Choi
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- Mechanical Engineering, Civil Engineering, Computational Mechanics, Fluid Dynamics
- by Kostas Spyrou
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- Engineering, Monte Carlo, Numerical Simulation, Mathematical Sciences
- by Bertrand Jodoin
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- Boundary Element Method, Three Dimensional, Potential Flow
- by Juan Carlos Baltazar
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- Higher Order Thinking, Second Order, Three Dimensional, Potential Flow

This paper addresses the potential flow-induced vibrations and fretting-wear of helically coiled tubes of the once-through steam generator employed at an integral type nuclear reactor, where the tubes are subjected to liquid cross-flow externally and multi-phase flow internally. The thermal-hydraulic conditions of both tube side and shell side flow fields are predicted using a general purpose computational fluid dynamics code

- by Jong JO
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- Engineering, Computational Fluid Dynamics, Turbulence, Modeling
- by Adrin Gharakhani
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- Engineering, Computational Physics, Random Walk, Mathematical Sciences
- by james reuther
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- Control Theory, Shape Optimization, Design method, OPTIMIZATION TECHNIQUE
- by Massimo Gennaretti
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- Engineering, State Space, Eigenvalue analysis, Steady state
- by Miguel A Losada
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- Civil Engineering, Geology, Coastal Engineering, Wave Energy
- by Daniele Peri
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- Agricultural Biotechnology, Marine Science, Low Frequency, Shape Optimization
- by Praveen Ramaprabhu
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- Engineering, Interaction, Fluid Dynamics, Shock Waves

This paper presents a partial sheet cavitation model and its validation. The partial sheet cavitation model has been developed and implemented within an unsteady potential flow code. However, as proposed in the model, there exists a relationship between the sheet cavitation geometry and the pressure distribution in non-cavitating condition, so the model can be implemented in various flow solvers. The

- by Jean-marc Laurens
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- Model validation, Steady state, Unsteady flow, Potential Flow
- by Omar Badran
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- Mechanical Engineering, Civil Engineering, Turbulent boundary layer, Shear Stress
- by Mirmosadegh Jamali
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- Mechanical Engineering, Civil Engineering, Applied Mathematics, Viscosity
- by Daniel Fornasiero
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- Engineering, Physical sciences, Nitrogen, Contact angle
- by javad koleini and +1
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- Chemical Engineering, Stokes flow, Air flow, Contact angle
- by Mukesh Kumar K Awasthi
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- Engineering, Applied Mathematics, Mathematical Physics, Quantum Physics
- by Francesco Pellicano
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- Engineering, Modeling, Fluid structure interaction, Potential Theory
- by Hermen J van der Lugt
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- Engineering, Fluid Mechanics, Aerodynamics, Mathematical Sciences
- by Gareth McKinley
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- Engineering, Physics, Nonlinear Elasticity, Mathematical Sciences