Matches in SemOpenAlex for { <https://semopenalex.org/work/W2031524210> ?p ?o ?g. }
- W2031524210 endingPage "501" @default.
- W2031524210 startingPage "482" @default.
- W2031524210 abstract "In many realistic fluid-dynamical simulations the specification of the boundary conditions, the error sources, and the number of time steps to reach a steady state are important practical considerations. In this paper we study these issues in the case of the lattice-BGK model. The objective is to present a comprehensive overview of some pitfalls and shortcomings of the lattice-BGK method and to introduce some new ideas useful in practical simulations. We begin with an evaluation of the widely used bounce-back boundary condition in staircase geometries by simulating flow in an inclined tube. It is shown that the bounce-back scheme is first-order accurate in space when the location of the non-slip wall is assumed to be at the boundary nodes. Moreover, for a specific inclination angle of 45 degrees, the scheme is found to be second-order accurate when the location of the non-slip velocity is fitted halfway between the last fluid nodes and the first solid nodes. The error as a function of the relaxation parameter is in that case qualitatively similar to that of flat walls. Next, a comparison of simulations of fluid flow by means of pressure boundaries and by means of body force is presented. A good agreement between these two boundary conditions has been found in the creeping-flow regime. For higher Reynolds numbers differences have been found that are probably caused by problems associated with the pressure boundaries. Furthermore, two widely used 3D models, namelyD3Q15andD3Q19, are analysed. It is shown that theD3Q15model may induce artificial checkerboard invariants due to the connectivity of the lattice. Finally, a new iterative method, which significantly reduces the saturation time, is presented and validated on different benchmark problems." @default.
- W2031524210 created "2016-06-24" @default.
- W2031524210 creator A5013876113 @default.
- W2031524210 creator A5016657852 @default.
- W2031524210 creator A5020133093 @default.
- W2031524210 creator A5021083999 @default.
- W2031524210 creator A5028197539 @default.
- W2031524210 creator A5083188322 @default.
- W2031524210 date "1999-04-01" @default.
- W2031524210 modified "2023-09-30" @default.
- W2031524210 title "Implementation Aspects of 3D Lattice-BGK: Boundaries, Accuracy, and a New Fast Relaxation Method" @default.
- W2031524210 cites W1973455510 @default.
- W2031524210 cites W1977014523 @default.
- W2031524210 cites W1981136290 @default.
- W2031524210 cites W1982933896 @default.
- W2031524210 cites W1985384043 @default.
- W2031524210 cites W1987337996 @default.
- W2031524210 cites W1987565682 @default.
- W2031524210 cites W1992773065 @default.
- W2031524210 cites W2003402426 @default.
- W2031524210 cites W2005541192 @default.
- W2031524210 cites W2009420423 @default.
- W2031524210 cites W2012915283 @default.
- W2031524210 cites W2013944512 @default.
- W2031524210 cites W2014391389 @default.
- W2031524210 cites W2014786311 @default.
- W2031524210 cites W2019104054 @default.
- W2031524210 cites W2020395610 @default.
- W2031524210 cites W2026659976 @default.
- W2031524210 cites W2033321794 @default.
- W2031524210 cites W2035157815 @default.
- W2031524210 cites W2040259398 @default.
- W2031524210 cites W2048204586 @default.
- W2031524210 cites W2055928182 @default.
- W2031524210 cites W2058960626 @default.
- W2031524210 cites W2068702383 @default.
- W2031524210 cites W2071620794 @default.
- W2031524210 cites W2072736531 @default.
- W2031524210 cites W2074128568 @default.
- W2031524210 cites W2087497493 @default.
- W2031524210 cites W2117242079 @default.
- W2031524210 cites W2118584836 @default.
- W2031524210 cites W2119950184 @default.
- W2031524210 cites W2122239898 @default.
- W2031524210 cites W2132905376 @default.
- W2031524210 cites W2170400704 @default.
- W2031524210 cites W3021091730 @default.
- W2031524210 cites W3103781082 @default.
- W2031524210 cites W3104198548 @default.
- W2031524210 cites W3111197091 @default.
- W2031524210 cites W4243122202 @default.
- W2031524210 doi "https://doi.org/10.1006/jcph.1999.6191" @default.
- W2031524210 hasPublicationYear "1999" @default.
- W2031524210 type Work @default.
- W2031524210 sameAs 2031524210 @default.
- W2031524210 citedByCount "88" @default.
- W2031524210 countsByYear W20315242102012 @default.
- W2031524210 countsByYear W20315242102013 @default.
- W2031524210 countsByYear W20315242102014 @default.
- W2031524210 countsByYear W20315242102015 @default.
- W2031524210 countsByYear W20315242102016 @default.
- W2031524210 countsByYear W20315242102017 @default.
- W2031524210 countsByYear W20315242102018 @default.
- W2031524210 countsByYear W20315242102019 @default.
- W2031524210 countsByYear W20315242102020 @default.
- W2031524210 countsByYear W20315242102021 @default.
- W2031524210 countsByYear W20315242102022 @default.
- W2031524210 countsByYear W20315242102023 @default.
- W2031524210 crossrefType "journal-article" @default.
- W2031524210 hasAuthorship W2031524210A5013876113 @default.
- W2031524210 hasAuthorship W2031524210A5016657852 @default.
- W2031524210 hasAuthorship W2031524210A5020133093 @default.
- W2031524210 hasAuthorship W2031524210A5021083999 @default.
- W2031524210 hasAuthorship W2031524210A5028197539 @default.
- W2031524210 hasAuthorship W2031524210A5083188322 @default.
- W2031524210 hasConcept C121332964 @default.
- W2031524210 hasConcept C121864883 @default.
- W2031524210 hasConcept C134306372 @default.
- W2031524210 hasConcept C182310444 @default.
- W2031524210 hasConcept C182748727 @default.
- W2031524210 hasConcept C195268267 @default.
- W2031524210 hasConcept C196558001 @default.
- W2031524210 hasConcept C24890656 @default.
- W2031524210 hasConcept C2781204021 @default.
- W2031524210 hasConcept C33923547 @default.
- W2031524210 hasConcept C38349280 @default.
- W2031524210 hasConcept C57879066 @default.
- W2031524210 hasConcept C62354387 @default.
- W2031524210 hasConcept C90278072 @default.
- W2031524210 hasConcept C97355855 @default.
- W2031524210 hasConceptScore W2031524210C121332964 @default.
- W2031524210 hasConceptScore W2031524210C121864883 @default.
- W2031524210 hasConceptScore W2031524210C134306372 @default.
- W2031524210 hasConceptScore W2031524210C182310444 @default.
- W2031524210 hasConceptScore W2031524210C182748727 @default.
- W2031524210 hasConceptScore W2031524210C195268267 @default.
- W2031524210 hasConceptScore W2031524210C196558001 @default.
- W2031524210 hasConceptScore W2031524210C24890656 @default.