Matches in SemOpenAlex for { <https://semopenalex.org/work/W3088390964> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W3088390964 abstract "The use of Computational Fluid Dynamics (CFD) as a research tool has been utilized in many ways to predict the turbulent flow nature and pollution dispersion in an urban environment such as street canyon. Apart from the advance advantages offered by this method, some problems can be arising on respect to accurate prediction of data and uncertainties of the assumption that are made in numerical modelling. The execution and evaluation of the CFD studies need to undergo validation and generic sensitivity analyses to minimize the computational error and have an accurate prediction of data. This study performs a series of large eddy simulation (LES) to investigate the flow fields within and above a two-dimensional idealized street canyon with a unity aspect ratio (ratio of street width, W to building height, H). The effect of domain size on turbulent statistics is evaluated through the implementation of three different domain sizes i.e. varied streamwise lengths with fixed spanwise length and vertical height for different grid resolution (coarse, medium and fine). Comparison with the available experimental results shown a good agreement for mean velocity profiles. However, current LES underestimates the higher-order turbulent statistics. For the mean flow, the LES predicts the streamwise flow in the upper part and reversed flow in the lower part of the canyon, indicating the well-known flow regime of skimming flow. The value of mean velocities for all cases of the run have almost matching profile inside and above the canyon. For all cases, the maximum values of standard deviation in the streamwise and vertical directions are located approximately near the roof-level windward wall represent the occurrence of velocities fluctuation. In contrast, the Reynold shear stress for all cases shows some discrepancy where the peaked of turbulence intensity near the roof height is not smoothly captured in the current LES. Study shows that the LES cannot properly simulate those statistics accurately when the streamwise domain is limited to 10H even with the increasing of grid resolution sizes. Nevertheless, these results are expected to provide additional information relevant to uncertainty estimation upon execution of computational fluid dynamics (CFD) simulation." @default.
- W3088390964 created "2020-10-01" @default.
- W3088390964 creator A5039166455 @default.
- W3088390964 creator A5039229285 @default.
- W3088390964 creator A5069753995 @default.
- W3088390964 date "2020-07-30" @default.
- W3088390964 modified "2023-09-30" @default.
- W3088390964 title "The Influence of Computational Parameterization on Mean Flow and Turbulence Statistic in 2D Idealized Street Canyon: Computational Domain" @default.
- W3088390964 doi "https://doi.org/10.37934/cfdl.12.7.3747" @default.
- W3088390964 hasPublicationYear "2020" @default.
- W3088390964 type Work @default.
- W3088390964 sameAs 3088390964 @default.
- W3088390964 citedByCount "0" @default.
- W3088390964 crossrefType "journal-article" @default.
- W3088390964 hasAuthorship W3088390964A5039166455 @default.
- W3088390964 hasAuthorship W3088390964A5039229285 @default.
- W3088390964 hasAuthorship W3088390964A5069753995 @default.
- W3088390964 hasConcept C105795698 @default.
- W3088390964 hasConcept C114793014 @default.
- W3088390964 hasConcept C121332964 @default.
- W3088390964 hasConcept C121448008 @default.
- W3088390964 hasConcept C127313418 @default.
- W3088390964 hasConcept C153294291 @default.
- W3088390964 hasConcept C1633027 @default.
- W3088390964 hasConcept C187691185 @default.
- W3088390964 hasConcept C196558001 @default.
- W3088390964 hasConcept C205904022 @default.
- W3088390964 hasConcept C22679943 @default.
- W3088390964 hasConcept C2524010 @default.
- W3088390964 hasConcept C2992675681 @default.
- W3088390964 hasConcept C32526432 @default.
- W3088390964 hasConcept C33923547 @default.
- W3088390964 hasConcept C38349280 @default.
- W3088390964 hasConcept C57879066 @default.
- W3088390964 hasConcept C84859931 @default.
- W3088390964 hasConceptScore W3088390964C105795698 @default.
- W3088390964 hasConceptScore W3088390964C114793014 @default.
- W3088390964 hasConceptScore W3088390964C121332964 @default.
- W3088390964 hasConceptScore W3088390964C121448008 @default.
- W3088390964 hasConceptScore W3088390964C127313418 @default.
- W3088390964 hasConceptScore W3088390964C153294291 @default.
- W3088390964 hasConceptScore W3088390964C1633027 @default.
- W3088390964 hasConceptScore W3088390964C187691185 @default.
- W3088390964 hasConceptScore W3088390964C196558001 @default.
- W3088390964 hasConceptScore W3088390964C205904022 @default.
- W3088390964 hasConceptScore W3088390964C22679943 @default.
- W3088390964 hasConceptScore W3088390964C2524010 @default.
- W3088390964 hasConceptScore W3088390964C2992675681 @default.
- W3088390964 hasConceptScore W3088390964C32526432 @default.
- W3088390964 hasConceptScore W3088390964C33923547 @default.
- W3088390964 hasConceptScore W3088390964C38349280 @default.
- W3088390964 hasConceptScore W3088390964C57879066 @default.
- W3088390964 hasConceptScore W3088390964C84859931 @default.
- W3088390964 hasLocation W30883909641 @default.
- W3088390964 hasOpenAccess W3088390964 @default.
- W3088390964 hasPrimaryLocation W30883909641 @default.
- W3088390964 hasRelatedWork W10623502 @default.
- W3088390964 hasRelatedWork W1142926 @default.
- W3088390964 hasRelatedWork W13536165 @default.
- W3088390964 hasRelatedWork W137773 @default.
- W3088390964 hasRelatedWork W17771104 @default.
- W3088390964 hasRelatedWork W25136345 @default.
- W3088390964 hasRelatedWork W25478128 @default.
- W3088390964 hasRelatedWork W3844987 @default.
- W3088390964 hasRelatedWork W4018145 @default.
- W3088390964 hasRelatedWork W29756101 @default.
- W3088390964 isParatext "false" @default.
- W3088390964 isRetracted "false" @default.
- W3088390964 magId "3088390964" @default.
- W3088390964 workType "article" @default.