A conservative transport scheme based on the discontinuous Galerkin (DG) method has been developed for the cubed sphere. Two different central projection methods, equidistant and equiangular, are employed for mapping between the inscribed cube and the sphere. These mappings divide the spherical surface into six identical subdomains, and the resulting grid is free from singularities. Two standar...

An approximate Riemann solver for the Aw-Rascle traffic flow model and the extension of Greenberg is constructed on the algebraic level. A discrete diffusion operator is added to the (oscillatory) high-order finite difference/element discretization to enforce a vectorial LED criterion. This yields a nonoscillatory but diffusive low-order scheme. To increase the accuracy an antidiffusion operato...

The set of 3D inviscid primitive equations for the atmosphere is dimensionally reduced by a Discontinuous Galerkin discretization in one horizontal direction. The resulting model is a 2D system of balance laws where with a source term depending on the layering procedure and the choice of coupling fluxes, which is established in terms of upwind considerations. The “2.5D” system is discretized vi...

The purpose of this study was to investigate if a novel parameter, the stress-to-rest ratio of the signal-to-noise ratio (RSNR) obtained with a cadmium zinc telluride (CZT) SPECT scanner, could be used to distinguish triple-vessel disease (TVD) patients. Methods. One hundred and two patients with suspected coronary artery disease were retrospectively involved. Each subject underwent a Tl-201 SP...

It was recently shown that for reasonable notions of approximation of states and functions by quantum circuits, almost all states and functions are exponentially hard to approximate 5]. The bounds obtained are asymptotically tight except for the one based on total variation distance (TVD). TVD is the most relevant metric for the performance of a quantum circuit. In this paper we obtain asymptot...

We prove a BV estimate for scalar conservation laws that generalizes the classical Total Variation Diminishing property. In fact, for any Lipschitz continuous monotone Φ : R→ R, we have that |Φ(u)|TV (R) is nonincreasing in time. We call this property Total Oscillation Diminishing because it is in contradiction with the oscillations observed recently on some numerical computations based on TVD ...

Computational Fluid Dynamics (CFD) is a tool to solve engineering problem. Commercial CFD code are being used most problem but rarely for external aerodynamic due some limitation of features. Compare in house that able written certain area interest and also implement specific discretization scheme increase accuracy. In this work, the developed by using high resolution (ROE TVD scheme) flow past...

This paper concerns the numerical schemes describing solute transport in fissured systems which are characterized by the tectonic blocks and spatial repartition of hydraulic properties with dual permeability structures composed of highand low-permeability blocks of the chalk aquifer (Northern France). Both advection and diffusion mechanisms are taken into account. The novel mathematical approac...

A torque vectoring differential (TVD) enhances the cornering performance by generating a difference between left and right wheels. For electrified vehicles, TVD with two-motor-torque amplification mechanism (TDA-TVD) is proposed, it generates greater than an Individual-wheel-drive (IWD) system under same power output from traction motors. However, owing to complex gear reduction including plane...

Abstract. A discontinuous Galerkin method for the ideal 5 moment two-fluid plasma system is presented. The method uses a second or third order discontinuous Galerkin spatial discretization and a third order TVD Runge-Kutta time stepping scheme. The method is benchmarked against an analytic solution of a dispersive electron acoustic square pulse as well as the two-fluid electromagnetic shock [1]...