Parametric Integration of CFD-based Wind Pressure Coefficients into Building Energy Models: A Novel Workflow

Naga Venkata Sai Kumar Manapragada, Jonathan Natanian

Research output: Contribution to journalConference articlepeer-review


By integrating computational fluid dynamics (CFD)-generated wind pressure coefficients (WPCs) into building energy models, recent workflows enable the evaluation of the impacts of local wind on the energy performance of buildings. With the current workflows, however, only manual integration of WPCs into building energy models is possible. This study provides a workflow for the parametric integration of CFD-based WPCs, sampled for each window in the model, into building energy models using the Rhino-GH platform. Using this workflow, this study performed a parametric block-scale energy evaluation of 324 iterations for courtyard and high-rise layouts in various urban and building design configurations in the climate of Tel Aviv to compare the cooling load deviations between CFD-based and default WPCs. The results reveal a significant cooling load deviation between default and CFD-based WPCs, particularly in compact configurations (courtyard typology, higher FAR, and narrower street widths), indicating that default wind pressure coefficients overestimate the natural cooling potential. Further investigation of the balance between solar gains and convective heat losses reveals a surge in the impact of solar gains on cooling loads when accounting for CFD-based WPCs in the climate of Tel Aviv. This workflow can assist designers and analysts in accounting for local wind patterns in energy-driven urban design workflows.

Original languageEnglish
Article number032011
JournalJournal of Physics: Conference Series
Issue number3
StatePublished - 2023
Event2023 International Conference on the Built Environment in Transition, CISBAT 2023 - Hybrid, Lausanne, Switzerland
Duration: 13 Sep 202315 Sep 2023

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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