English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Natural ventilation can play an important role towards preventing the spreadof airborne diseases in indoor environments. However, quantifying naturalventilation flow rates is a challenging task due to significant variability inthe boundary conditions that drive the flow. In the current study, we proposeand validate an efficient strategy for using computational fluid dynamics (CFD)to assess natural ventilation flow rates under variable conditions, consideringthe test case of a single-room home in a dense urban slum. The methodcharacterizes the dimensionless ventilation rate as a function of thedimensionless ventilation Richardson number and the wind direction. First, thehigh-fidelity large-eddy simulation predictions are validated againstfull-scale ventilation rate measurements. Next, simulations with identicalRichardson numbers, but varying dimensional wind speeds and temperatures, arecompared to verify the proposed similarity relationship. Last, the functionalform of the similarity relationship is determined based on 32 LES. Validationof the surrogate model against full-scale measurements demonstrates that theproposed strategy can efficiently inform accurate building-specific similarityrelationships for natural ventilation flow rates in complex urban environments.

Large-eddy simulations to define building-specific similarity relationships for natural ventilation flow rates