Academic literature on the topic 'Vertical incident wave'

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Journal articles on the topic "Vertical incident wave"

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LONGUET-HIGGINS, MICHAEL S., and DAVID A. DRAZEN. "On steep gravity waves meeting a vertical wall: a triple instability." Journal of Fluid Mechanics 466 (September 10, 2002): 305–18. http://dx.doi.org/10.1017/s0022112002001246.

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Theoretical arguments suggest that progressive gravity waves incident on a vertical wall can produce periodic standing waves only if the incident wave steepness ak is quite small, certainly less than 0.284. Laboratory experiments are carried out in which an incident wave train of almost uniform amplitude meets a vertical barrier. At wave steepnesses greater than 0.236 the resulting motion near the barrier is non-periodic. A growing instability is observed in which every third wave crest is steeper than its neighbours. The steep waves develop sharp crests, or vertical jets. The two neighbouring
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Lv, Hao. "A numerical approach applied to three-dimensional wave scattering problems subjected to obliquely propagating incident waves." PLOS ONE 19, no. 6 (2024): e0304721. http://dx.doi.org/10.1371/journal.pone.0304721.

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Accurately modeling artificial boundary conditions and wave inputs is paramount for numerical simulations of wave scattering in semi-infinite domains within seismic engineering. Traditionally, analysts focused on one- or two-dimensional free-field problems to determine wave inputs, primarily for vertically incident plane waves or obliquely incident waves parallel to two axes. However, these methods were inadequate for handling arbitrary incident directions in three-dimensional scenarios. This paper proposes a method for modeling seismic wave incidents in arbitrary directions. The basic theory
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Gao, Yangyang, Linguang Ren, and Lizhong Wang. "Experimental Investigation of Wave Propagation and Overtopping over Seawalls on a Reef Flat." Journal of Marine Science and Engineering 11, no. 4 (2023): 836. http://dx.doi.org/10.3390/jmse11040836.

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A series of physical model tests were performed to investigate the wave propagation, pressure, and wave overtopping processes for vertical and sloped seawalls on the reef flat. For both regular and irregular waves, the effects of incident wave height, wave period, relative distance, fore reef slope, and still-water depth on wave propagation, wave pressure distribution, and mean wave overtopping discharge were investigated. The peak pressure increased with the increase in incident wave height and decreased with the increase in relative distance and fore reef slope. The mean wave overtopping dis
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Liu, Xu. "Continuous and elastically consistent viscoelastic reflection and transmission coefficient curves for plane inhomogeneous P and S waves." Geophysical Journal International 226, no. 3 (2021): 2011–30. http://dx.doi.org/10.1093/gji/ggab200.

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SUMMARY For inhomogeneous plane waves in dissipative media, correctly selecting the vertical slowness (q) is the key requirement to obtain physically acceptable reflection/transmission (R/T) coefficients (e.g. both continuous curves as a function of incidence angle, and consistency with the elastic coefficients at very low attenuation). Based on the fundamental branch-cut theory, the continuity criterion ensures the continuity of the R/T coefficient curves. The elastic consistence is obtained due to the definition of the mixed principal values and the consistent assumptions of time dependence
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Jung, Jae-Sang, and Changhoon Lee. "Spatial Variation of Wave Force Acting on a Vertical Detached Breakwater Considering Diffraction." Journal of Korean Society of Coastal and Ocean Engineers 33, no. 6 (2021): 275–86. http://dx.doi.org/10.9765/kscoe.2021.33.6.275.

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In this study, the analytical solution for diffraction near a vertical detached breakwater was suggested by superposing the solutions of diffraction near a semi-infinite breakwater suggested previously using linear wave theory. The solutions of wave forces acting on front, lee and composed wave forces on both side were also derived. Relative wave amplitude changed periodically in space owing to the interactions between diffracting waves and standing waves on front side and the interactions between diffracting waves from both tips of a detached breakwater on lee side. The wave forces on a verti
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Wei, Zhangping, and Robert A. Dalrymple. "SPH MODELING OF VORTICITY GENERATION BY SHORT-CRESTED WAVE BREAKING." Coastal Engineering Proceedings, no. 35 (June 23, 2017): 1. http://dx.doi.org/10.9753/icce.v35.waves.1.

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This study investigates vorticity generation by short-crested wave breaking by using the mesh-free Smoothed Particle Hydrodynamics model, GPUSPH. The short-crested waves are created by generating intersecting wave trains in a numerical wave basin with a beach. The capability of GPUSPH to simulate short-crested waves is first validated by laboratory measurements. Then we examine short-crested wave breaking with two incident wave heights H = 0.2 m and 0.3 m. The larger incident wave breaks at the toe of the planar beach, while the smaller incident wave breaks above the planar beach. The breaking
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Kriebel, David L. "NONLINEAR DIFFRACTION BY A VERTICAL CYLINDER." Coastal Engineering Proceedings 1, no. 21 (1988): 1. http://dx.doi.org/10.9753/icce.v21.1.

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A theoretical solution is developed for the interaction of second-order Stokes waves with a large vertical circular cylinder in water of finite depth. The solution is obtained in terms of the velocity potential such that any kinematic or dynamic quantity of interest may be derived, consistent to the second perturbation order. In this study, the second-order wave field around the cylinder is determined, showing the modification of the incident Stokes waves by wave-wave and wave-structure interactions, both in the reflection-dominated up-wave region and in the diffraction-dominated down-wave reg
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Yoon, Sung Bum, Jong-In Lee, Young-Take Kim, and Choong Hun Shin. "Laboratory and numerical experiments on stem waves due to monochromatic waves along a vertical wall." Nonlinear Processes in Geophysics 25, no. 3 (2018): 521–35. http://dx.doi.org/10.5194/npg-25-521-2018.

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Abstract. In this study, both laboratory and numerical experiments are conducted to investigate stem waves propagating along a vertical wall developed by the incidence of monochromatic waves. The results show the following features: for small-amplitude waves, the wave heights along the wall show a slowly varying undulation. Normalized wave heights perpendicular to the wall show a standing wave pattern. The overall wave pattern in the case of small-amplitude waves shows a typical diffraction pattern around a semi-infinite thin breakwater. As the amplitude of incident waves increases, both the u
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Voskoboinick, Volodymyr Anatoliyovych, Oleksandr Anatoliyovych Voskoboinyk, Andriy Volodymyrovych Voskobiinyk, Anatolii Grygorovych Kharchenko, and Denys Volodymyrovych Trudenko. "FEATURES OF WAVE TRANSFORMATION BY A PERMEABLE BREAKWATER." Bulletin of the National Technical University "KhPI". Series: Mathematical modeling in engineering and technologies, no. 1(8) (July 23, 2025): 28–38. https://doi.org/10.20998/2222-0631.2025.01(8).03.

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The influence of the permeability of a breakwater on the wave transformation is studied. It is assumed that the vertical breakwater, in contrast to an absolutely rigid one, is characterized by a finite permeability and can absorb the energy of incoming incident waves. In this regard, the propagation of surface gravity waves in a rectangular coordinate system is investigated. Traditional realized examples of wave energy selection and their mathematical analysis are given. From the law of conservation of energy upon reflection from vertical walls follows the dependence for the reflection coeffic
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Singh, Baljeet. "Reflection of Plane Waves from Surface of a Generalized Thermo-Viscoelastic Porous Solid Half-Space with Impedance Boundary Conditions." Mechanics and Mechanical Engineering 22, no. 4 (2020): 1483–96. http://dx.doi.org/10.2478/mme-2018-0116.

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AbstractA phenomenon of reflection of plane waves from a thermally insulated surface of a solid half-space is studied in context of Lord-Shulman theory of generalized thermo-viscoelasticity with voids. The governing equations of generalized thermo-viscoelastic medium with voids are specialized in x–z plane. The plane wave solution of these equations shows the existence of three coupled longitudinal waves and a shear vertical wave in a generalized thermo-viscoelastic medium with voids. For incident plane wave (longitudinal or shear), three coupled longitudinal waves and a shear vertical wave re
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Dissertations / Theses on the topic "Vertical incident wave"

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Burgess, Samuel J. "An investigation of the propagation characteristics of a single frequency mid-latitude NVIS radio channel." Thesis, University of Ulster, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370086.

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Book chapters on the topic "Vertical incident wave"

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Xu, Liu-Jun, and Ji-Ping Huang. "Theory for Thermal Wave Refraction: Advection Regulation." In Transformation Thermotics and Extended Theories. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-5908-0_16.

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AbstractIn this chapter, we study thermal waves of conduction and advection and further design advection-assisted metamaterials to realize the positive, vertical, and negative refraction of thermal waves. These results have a phenomenological analog of electromagnetic wave refraction despite different mechanisms. The negative refraction of thermal waves means that the incident and refractive thermal waves are on the same side of the normal, but the wave vector and energy flow are still in the same direction. As a model application, we apply the refractive behavior to design a thermal wave conc
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Luzón, F., L. Ramírez, F. J. Sánchez-Sesma, and A. Posadas. "Simulation of the Seismic Response of Sedimentary Basins with Vertical Constant-Gradient Velocity for Incident SH Waves." In Geodetic and Geophysical Effects Associated with Seismic and Volcanic Hazards. Birkhäuser Basel, 2004. http://dx.doi.org/10.1007/978-3-0348-7897-5_15.

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Ishihara, Kenji. "In Situ Survey by Wave Propagation." In Soil Behaviour in Earthquake Geotechnics. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198562245.003.0005.

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Abstract When a body wave comes across an interface of two media with different stiffnesses, the direction of its propagation is deflected in accordance with Snell’s law as illustrated in Fig. 5.1. If the angle of incidence ψ1 is smaller than a critical angle ψc, the wave is refracted and propagates in the second medium with an angle ψ2 which is larger than ψ1 (where we have assumed that the wave travels faster in the second medium). If the incident wave encounters the interface with an angle larger than ψc, the wave is reflected into the first medium with the same angle ψR to the vertical, as
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"Hydrodynamic analysis of vertical flapping thin plate in oblique incident waves." In Maritime Technology and Engineering. CRC Press, 2014. http://dx.doi.org/10.1201/b17494-136.

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Karmakar, D., and C. Soares. "Hydrodynamic analysis of vertical flapping thin plate in oblique incident waves." In Maritime Technology and Engineering. CRC Press, 2014. http://dx.doi.org/10.1201/b17494-169.

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Sun, J., S. Dong, G. Li, M. Hao, and F. Xiong. "Dynamic response of loess slope with uniform and isotropic layers to vertically incident strong shear waves with different vibrating directions." In Global View of Engineering Geology and the Environment. CRC Press, 2013. http://dx.doi.org/10.1201/b15794-134.

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Conference papers on the topic "Vertical incident wave"

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Muntaser, Akram, and Monish R. Chatterjee. "Design of a Horizontal Chiral Thin Film Array for Optical Filter Applications in the Visible Range." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jd4a.26.

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In this study, we present a chiral thin film resonator array aligned horizontally and illuminated by a collimated linear, p-polarized plane wave incident normally on the array. Each thin film is analyzed via evaluating of the corresponding mode spectra emerging from multiple transitions within the thin film under variable chirality coefficients such as thin film thickness and length, and substrate placement conditions as a function of the (monochromatic) mode frequency. The spectral behavior of (2n+1) thin films overlapping at a specific vertical point is examined under uniform illumination at
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Muntaser, Akram, and Monish R. Chatterjee. "Enhancing Solar Cell Efficiency with Tunable Transverse Modal Response to Natural Light of a Linear Chiral Thin Film Array." In Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/bgpp.2024.jtu1a.41.

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In this work, we propose the design of a chiral thin film resonator array aligned horizontally illuminated by a collimated linear, p-polarized plane wave incident normally on the array. Each thin film is analyzed via evaluating the corresponding mode spectra emerging from multiple transitions within the slab for right- and left-circular polarized (RCP and LCP) modes under variable chirality coefficients, thin film thickness and length, and substrate placement conditions as a function of the (monochromatic) mode frequency. To maximize the efficiency of solar cells, the spectral behavior of (2n+
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Smith, Harry, Eric Gillies, Angel Zarev, and Richard Green. "Engineering Models for Inertially-Fixed Forces Caused by Hingeless Rigid Rotors in Non-Uniform Inflow: A Problem for Compound Helicopters." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0074-2018-12714.

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A novel application of harmonic wake methods for propellers at incidence have applications for compound helicopters. Any hingeless rotor subject to non-uniform incident velocity will produce a constant force in inertially-fixed axes (i.e., reacted on the non-rotating support) - though this phenomena is well-documented, engineering-level models for prediction of this force are generally poor, and tend to utilise assumptions that have little physical basis. To avoid utilising these assumptions, a harmonic load/wake model is presented that affords the ability to model blade-level unsteadiness wit
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Bowen-Davies, Graham. "Comparison of VortexWake, VVPM and CFD Aeromechanics Computations of the Boeing 222 Proprotor." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0074-2018-12703.

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An aeromechanics investigation was conducted for the Boeing 222 proprotor test in transition orientation with the comprehensive analysis code RCAS comparing vortex wake, Viscous Vortex Particle Method (VVPM) and Helios™ (CFD) calculations. The results include the calculations of rotor trim and rotor oscillatory structural loads for a proprotor in near axial orientation at high speed, high incidence transition and helicopter-like edgewise orientation. VVPM and Helios calculations gave the same wake physics for the isolated rotor and resulted in similar hub moments and blade loads sensitivities
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Uppoor, Vivek, Mrinalgouda Patil, and Inderjit Chopra. "Aeromechanics Investigation of a Dual-Wing Lift Compounded Slowed Mach Scale Rotor." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1234.

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An aeromechanics analysis of a Mach-scaled rotor with lift compounding was conducted to understand the impact of various wing configurations on performance and loads. An assessment of the single retreating side wing and dual wing configurations was conducted for advance ratios up to μ = 0.7, two wing incidence angles (4° and 8°), and three rotor shaft angles (-4°, 0°, and 4°). Aircraft performance, control angles, blade structural loads, hub vibratory loads, and aerodynamic interactions between the rotor and wing were evaluated using the University of Maryland Advanced Rotorcraft Code (UMARC).
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Ganesan Thirunaavukarasu, Shivaji, Debabrata Sen, and Yogendra Parihar. "Steep Wave Effects on Wave Induced Vertical Bending Moment Using a 3D Numerical Wave Tank." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61161.

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This paper presents a detail comparative study on wave induced vertical bending moment (VBM) between linear and approximate nonlinear calculations using a 3D numerical wave tank (NWT) method. The developed numerical approach is in time domain where the ambient incident waves can be defined by any suitable wave theory. Certain justifying approximations employed in the solution of the interaction hydrodynamics (diffraction and radiation) enabling the NWT to generate stable long duration time histories of all parameters of interest. This is an extension of our earlier works towards the developmen
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Swan, Chris, Stephen Masterton, Rizwan Sheikh, and Alessandra Cavalletti. "Wave Forcing and Wave Scattering From a Vertical Surface-Piercing Cylinder." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67158.

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This paper concerns the nonlinear, higher-harmonic, wave-forces acting on a vertical surface-piercing cylinder. New laboratory data is presented which confirms that in the case a vertical cylinder, the diameter of which is large but not sufficiently large that the body lies within the linear diffraction regime, the second- and third-harmonic forces are not well described by existing models. This is particularly apparent when the incident waves are steep and have a relatively small wave period. Indeed, under these conditions the second-, third- and fourth-harmonic forces are shown to be compara
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Pavone, Diego, and Felice Arena. "Forces of Random Wave Groups on Vertical Cylinders." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92484.

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The paper analyses the diffraction problem of two bottom mounted vertical circular cylinders. The randomness and directional spreading of sea waves are taken into account and a new procedure is proposed to estimate the largest forces on the bodies when extreme waves occur. Firstly extreme forces on the array of cylinders are obtained in two cases: - when a large crest occurs at a given point in the undisturbed wave field (which is the incident wave field in diffraction conditions); - when a large crest-to-trough wave height occurs in the undisturbed wave field. Finally, it is investigated wher
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Sheikh, Rizwan, and Chris Swan. "The Interaction Between Steep Waves and a Vertical, Surface-Piercing Column." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37154.

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The paper describes new laboratory observations concerning the interaction between a series of steep incident waves and a vertical, surface-piercing, column. The motivation for the study arose as a result of wave impact damage sustained to the undersides of several concrete gravity-based structures in the northern North Sea. Earlier work, Swan et al. [1], demonstrated that in the case of multiple column structures, the individual diameters of which lie outside the typical (linear) diffraction regime, there exists a new and previously unexpected mechanism leading to the scattering of high-frequ
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Kota, Ravikiran S., and Torgeir Moan. "Stochastic Analysis of Vertical Wave Loads on Deck." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57105.

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Vertical loads on a platform deck due to incident random waves — long-crested and Gaussian, are studied. Loads on the deck are due to wave-slamming, added-mass over the wetted length and nonlinear Froude-Krylov components. Reliable estimation of these loads and their duration is important in evaluating their effects on platform response (global or local). Emphasis of the present work is to study statistical measures such as expected maximum/minimum impact load and its duration. Gaussian waves are numerically simulated over several points of a two-dimensional deck in time-domain and each deck-w
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