Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Buerger, Raimund"'
Jamitons are self-sustained traveling wave solutions that arise in certain second-order macroscopic models of vehicular traffic. A necessary condition for a jamiton to appear is that the local traffic density breaks the so-called sub-characteristic c
Externí odkaz:
http://arxiv.org/abs/2412.03721
Publikováno v:
SIAM J. SCI. COMPUT.Vol. 42, No. 2, pp. A1028-A1051 (2020)
A novel scheme, based on third-order Weighted Essentially Non-Oscillatory (WENO) reconstructions, is presented. It attains unconditionally optimal accuracy when the data is smooth enough, even in presence of critical points, and second-order accuracy
Externí odkaz:
http://arxiv.org/abs/2402.02300
Publikováno v:
SIAM J. NUMER. ANAL. Vol. 57, No. 6, pp. 2760-2784 (2019)
A modified Weighted Essentially Non-Oscillatory (WENO) reconstruction technique preventing accuracy loss near critical points (regardless of their order) of the underlying data is presented. This approach only uses local data from the reconstruction
Externí odkaz:
http://arxiv.org/abs/2402.02295
Publikováno v:
J Sci Comput 80, 1240-1263 (2019)
Common smoothness indicators used in Weighted Essentially Non\--Os\-cil\-la\-to\-ry (WENO) reconstructions [Jiang, G.S., Shu, C.W.: Efficient implementation of {Weighted} {ENO} schemes, J.\ Comput.\ Phys. \textbf{126}, 202--228 (1996)] have quadratic
Externí odkaz:
http://arxiv.org/abs/2402.01583
Publikováno v:
J Sci Comput 78, 499-530 (2019)
A novel central weighted essentially non-oscillatory (central WENO; CWENO)-type scheme for the construction of high-resolution approximations to discontinuous solutions to hyperbolic systems of conservation laws is presented. This procedure is based
Externí odkaz:
http://arxiv.org/abs/2402.01526
Publikováno v:
Comput. Appl. Math. 39 (2020), no. 4, Paper No. 304, 21 pp
An efficient approximate version of implicit Taylor methods for initial-value problems of systems of ordinary differential equations (ODEs) is introduced. The approach, based on an approximate formulation of Taylor methods, produces a method that req
Externí odkaz:
http://arxiv.org/abs/2402.01473
Sequencing batch reactors (SBRs) are devices widely used in wastewater treatment, chemical engineering, and other areas. They allow for the sedimentation and compression of solid particles of biomass simultaneously with biochemical reactions with nut
Externí odkaz:
http://arxiv.org/abs/2304.07489
A non-negligible part of the biological reactions in the activated sludge process for treatment of wastewater takes place in secondary settling tanks that follow biological reactors. It is therefore of interest to develop models of so-called reactive
Externí odkaz:
http://arxiv.org/abs/2205.12557
Froth flotation is a common unit operation used in mineral processing. It serves to separate valuable mineral particles from worthless gangue particles in finely ground ores. The valuable mineral particles are hydrophobic and attach to bubbles of air
Externí odkaz:
http://arxiv.org/abs/2202.04679
A numerical scheme is proposed for the simulation of reactive settling in sequencing batch reactors (SBRs) in wastewater treatment plants. Reactive settling is the process of sedimentation of flocculated particles (biomass; activated sludge) consisti
Externí odkaz:
http://arxiv.org/abs/2112.02532