SAGE-PEDD theory manual : modeling windblown snow deposition around buildings

Haehnel, Robert B.; Wenren, Yonghu; Allen, Luke

doi:10.21079/11681/44942

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…The result of these enhancements is an updated flow solver and the Particle Entrainment, Dispersion, and Deposition (PEDD) model. More information on the SAGE-PEDD model can be found in the SAGE-PEDD Theory Manual (Haehnel, Wenren, and Allen 2022).…”

Section: Scaling Timementioning

confidence: 99%

South Pole Station snowdrift model

Allen¹,

Haehnel²,

Wenren³

2022

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The elevated building at Scott-Amundsen South Pole Station was designed to mitigate the effects of windblown snow on it and the surrounding infrastructure. Because the elevation of the snow surface increases annually, the station is periodically lifted on its support columns to maintain its design height above the snow surface. To assist with planning these lifts, this effort developed a computational model to simulate snowdrift formation around the elevated building. The model uses computational fluid dynamics methods and synthetic wind record generation derived from statistical analysis of meteorological data. Simulations assessed the impact of several options for the lifting operation on drifts surrounding the elevated building. Simulation results indicate that raising the eastern-most building section (Pod A), or the entire station all at once, can reduce drift accumulation rates over the nearby arches structures. Long-term analyses, spanning 5–6 years, determine whether an equilibrium drift condition may be reached after a long period of undisturbed drift development. These simulations showed that after about 6 years, the rate of growth of the upwind drift slows, appearing to approach an equilibrium condition. However, the adjacent drifts were still increasing in depth at a roughly linear rate, indicating that equilibrium for those drifts was still several seasons away.

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Section: Scaling Timementioning

confidence: 99%

South Pole Station snowdrift model

Allen¹,

Haehnel²,

Wenren³

2022

Self Cite

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“…The version of SAGE-PEDD described here is V1.0. Refer to the SAGE-PEDD Theory Manual for an in depth look at the strategies and mathematics employed by the program and its subroutines (Haehnel, Wenren, and Allen 2022).…”

Section: Introductionmentioning

confidence: 99%

SAGE-PEDD user manual

Wenren¹,

Allen²,

Haehnel³

2022

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SAGE-PEDD is a computational model for estimating snowdrift shapes around buildings. The main inputs to the model are wind speed, wind direction, building geometry and initial ground or snow-surface topography. Though developed mainly for predicting snowdrift shapes, it has the flexibility to accept other soil types, though this manual addresses snow only. This manual provides detailed information for set up, running, and viewing the output of a SAGE-PEDD simulation.

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SAGE-PEDD theory manual : modeling windblown snow deposition around buildings

Cited by 2 publications

References 12 publications

South Pole Station snowdrift model

South Pole Station snowdrift model

SAGE-PEDD user manual

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