Three-dimensional large eddy simulation urban neighborhood model with updated building drag coefficient and universal multiscale Smagorinsky model DOI
Qingxiang Shui, Zhaolin Gu, Daguo Wang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(7)

Published: July 1, 2024

Various drag-porosity models for urban buildings have been developed to explain the changes caused by building layout on airflow and turbulence in neighborhoods. One-dimensional with different model coefficients widely used study However, these often rely length scales calculate eddy viscosity dissipation rate using K-theory, which also need be adjusted configurations. This aims address this limitation developing a drag parameterization version of three-dimensional large simulation neighborhood (LES model). The proposed incorporates an updated coefficient universal multiscale Smagorinsky model, making it suitable simulating airflows idealized real neighborhoods compact mid-rise buildings. To evaluate performance building-resolving LES was conducted vertical profiles turbulent kinetic energy momentum flux obtained are superior those previous models.

Language: Английский

Three-dimensional large eddy simulation urban neighborhood model with updated building drag coefficient and universal multiscale Smagorinsky model DOI
Qingxiang Shui, Zhaolin Gu, Daguo Wang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(7)

Published: July 1, 2024

Various drag-porosity models for urban buildings have been developed to explain the changes caused by building layout on airflow and turbulence in neighborhoods. One-dimensional with different model coefficients widely used study However, these often rely length scales calculate eddy viscosity dissipation rate using K-theory, which also need be adjusted configurations. This aims address this limitation developing a drag parameterization version of three-dimensional large simulation neighborhood (LES model). The proposed incorporates an updated coefficient universal multiscale Smagorinsky model, making it suitable simulating airflows idealized real neighborhoods compact mid-rise buildings. To evaluate performance building-resolving LES was conducted vertical profiles turbulent kinetic energy momentum flux obtained are superior those previous models.

Language: Английский

Citations

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