A BEM for the Propagation of Nonlinear Planar Free-surface Waves
نویسندگان
چکیده
منابع مشابه
Electromigration-induced propagation of nonlinear surface waves.
Due to the effects of surface electromigration, waves can propagate over the free surface of a current-carrying metallic or semiconducting film of thickness h(0). In this paper, waves of finite amplitude, and slow modulations of these waves, are studied. Periodic wave trains of finite amplitude are found, as well as their dispersion relation. If the film material is isotropic, a wave train with...
متن کاملthe study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media
امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
Stability criteria for capillary/gravity free-surface waves in BEM simulations of viscous potential flows
A new stability investigation method based on normal modes of linearized free-surface perturbations is presented. Stability criteria, for each temporal schemes, are deduced from this method via a symbolic computation of the two eigenvalues of the amplification matrix, allowing us to choose the optimal time step in a straightforward manner. Moreover, efficient semi-implicit schemes well adapted ...
متن کاملBEM Computations of 3D Fully Nonlinear Free Surface Flows Caused by Advancing Surface Disturbances
We report on our recent development and validation of a new numerical model for fully nonlinear free surface waves generated by an advancing free surface disturbance. This model is based on potential flow theory with fully nonlinear free surface boundary conditions, which we solve in the time domain using a three-dimensional (3D) higher-order Boundary Element Method (HOBEM) combined with a seco...
متن کاملinvestigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronic Journal of Boundary Elements
سال: 2007
ISSN: 1542-3891
DOI: 10.14713/ejbe.v5i1.780