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USACM UQ Virtual Seminar
Thursday, November 04, 2021, 2:00 PM - 3:00 PM CST
Category: Events

USACM UQ Virtual Seminar

Uncertainty Quantification and Data Assimilation for Predictive Computational Wind Engineering


Catherine Gorlé, Stanford University


Gianluca Iaccarino, Stanford University



Computational fluid dynamics (CFD) can inform sustainable design of buildings and cities in terms of optimizing pedestrian wind comfort, air quality, thermal comfort, energy efficiency, and resiliency to extreme wind events. An important limitation is that the accuracy of CFD results can be compromised by the large natural variability and complex physics that are characteristic of urban flow problems. In this talk I will show how uncertainty quantification and data assimilation can be leveraged to evaluate and improve the predictive capabilities of Reynolds-averaged Navier-Stokes simulations for urban flow and dispersion. I will focus on quantifying inflow and turbulence model form uncertainties for two different urban environments: Oklahoma City and Stanford’s campus. For both test cases, the predictive capabilities of the models will be evaluated by comparing the model results to field measurements.