A hybrid vortex method for two-dimensional flow over tube bundles
نویسندگان
چکیده
منابع مشابه
Hybrid Vortex/magnet Methods for Flow over a Solid Boundary
Boundary conditions, in particular no-slip boundary conditions, are usually imposed in vor-tex methods through the creation of vorticity. In three dimensions, this is typically done by creating vortex \blobs" or \segments". However, with these computational elements, one compromises accuracy by losing the divergence-free nature of the vorticity eld. Furthermore, these methods preclude the use o...
متن کاملA Vortex Particle Method for Two-DimensionalCompressible Flow
A vortex particle method is developed for simulating two-dimensional, unsteady compressible flow. The method uses the Helmholtz decomposition of the velocity field to separately treat the irrotational and solenoidal portions of the flow, and the particles are allowed to change volume to conserve mass. In addition to having vorticity and dilatation properties, the particles also carry density, e...
متن کاملPersistent bundles over a two dimensional compact set Pierre
The C-structurally stable diffeomorphims of a compact manifold are those that satisfy Axiom A and the strong transversality condition (AS). We generalize the concept of AS from diffeomorphisms to invariant compact subsets. Among other properties, we show the structural stability of the AS invariant compact sets K of surface diffeomorphisms f . Moreover if f̂ is the dynamics of a compact manifold...
متن کاملThree-dimensional hybrid vortex solitons
We show, by means of numerical and analytical methods, that media with a repulsive nonlinearity which grows from the center to the periphery support a remarkable variety of previously unknown complex stationary and dynamical three-dimensional (3D) solitary-wave states. Peanut-shaped modulation profiles give rise to vertically symmetric and antisymmetric vortex states, and novel stationary hybri...
متن کاملA method for bubble volume measurement under constant flow conditions in gas–liquid two-phase flow
Measuring the volume of a bubble, especially at its detachment, is a basic subject in gas-liquid two-phase flow research. A new indirect method for this measurement under constant flow conditions is presented. An electronic device is designed and constructed based on laser beam intensity. This device calculates the frequency of the bubble formation by measuring the total time of the formation p...
متن کاملذخیره 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: ESAIM: Proceedings
سال: 1999
ISSN: 1270-900X
DOI: 10.1051/proc:1999041