Energy-stable staggered schemes for the Shallow Water equations

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Energy conservative and - stable schemes for the two - layer shallow water equations

The two-layer shallow water equations model the flow of two fluids of different densities, superimposed on each other, under the influence of gravity. The main assumption in the derivation is that the horizontal length scales are much bigger than the vertical scales, and that one can therefore neglect variations in depth of density and velocity.Furthermore, it is assumed that no mixing occurs b...

متن کامل

Well-balanced and energy stable schemes for the shallow water equations with discontinuous topography

We consider the shallow water equations with non-flat bottom topography. The smooth solutions of these equations are energy conservative, whereas weak solutions are energy stable. The equations possess interesting steady states of lake at rest as well as moving equilibrium states. We design energy conservative finite volume schemes which preserve (i) the lake at rest steady state in both one an...

متن کامل

Hydrostatic Upwind Schemes for Shallow–Water Equations

We consider the numerical approximation of the shallow–water equations with non–flat topography. We introduce a new topography discretization that makes all schemes to be well–balanced and robust. At the discrepancy with the well–known hydrostatic reconstruction, the proposed numerical procedure does not involve any cut–off. Moreover, the obtained scheme is able to deal with dry areas. Several ...

متن کامل

Energy-Preserving and Stable Approximations for the Two-Dimensional Shallow Water Equations

We present a systematic development of energy-stable approximations of the two-dimensional shallow water (SW) equations, which are based on the general framework of entropy conservative schemes introduced in [Tad03, TZ06]. No artificial numerical viscosity is involved: stability is dictated solely by eddy viscosity. In particular, in the absence of any dissipative mechanism, the resulting numer...

متن کامل

Efficient well-balanced hydrostatic upwind schemes for shallow-water equations

The proposed work concerns the numerical approximations of the shallow-water equations with varying topography. The main objective is to introduce an easy and systematic technique to enforce the well-balance property and to make the scheme able to deal with dry areas. To access such an issue, the derived numerical method is obtained by involving the free surface instead of the water height and ...

متن کامل

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: Journal of Computational Physics

سال: 2020

ISSN: 0021-9991

DOI: 10.1016/j.jcp.2019.109051