STUDIA UNIVERSITATIS

AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN ROMÂNA ENGLISH INFOKIOSK CONTACT ADDRESSES SPECIAL ACCESS SUBSCRIPTION FORM NEWSLETTER & DOWNLOAD NEWEST ISSUES THIS YEAR ISSUES ALL ISSUES IN ARCHIVE FIND IN ARCHIVE HISTORY TODAY SCOP & OBJECTIVES THE TEAM


	The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.


	STUDIA MATHEMATICA - Issue no. 4 / 2014

	Article:	COMPARISON OF RIEMANN SOLVERS IN FLUID DYNAMICS BY WEIGHTED ERROR NUMBER. Authors: .


	Abstract: After using a numerical method our eyes are good witnesses whether that method is good or not. We aim to provide, for first order hyperbolic systems, a number that measures, determines the quality of a method instead of deciding by figures. This number is based on the ℓ₁ vector norm of the error vector, combined with weighting. This weight vector has bigger values near discontinuities and kinks because most of the Riemann-solvers have difficulties (including numerical diffusion and oscillations) in solving the equations near these states. Mathematics Subject Classification (2010): 65M06. Keywords: Riemann-solver, hyperbolic equation.




			Back to previous page