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https://hku.zoom.us/j/98881411844?pwd=6xSKWiftNI96KpShsWThZ3p5bxrAmV.1

Meeting ID: 988 8141 1844

Password: 840740

Abstract:

The concept of domed cities, which traces its origins to early 19th-century science fiction, was later proposed as a practical project by Buckminster Fuller in the 1960s to address the escalating urban challenges like the urban heat island effect, atmospheric pollution, and climate change. These structures are designed to provide a controlled internal environment, mitigating environmental degradation and enhancing living conditions. However, the existing proposals often neglect the structure’s interactions with the surrounding environment, which may create unique external climatic conditions. Therefore, this research aims to investigate how this supertall large-span artificial structure will reshape the external climate and explore the potential benefits of these modifications. In this talk, I will first review the wind flow patterns over mountains which share geometric similarities with our structures, though they differ in horizontal scale and surface roughness. To address these differences, I conducted two-dimensional experiments using Weather Research and Forecasting Model (WRF) to examine the dry flow and conditionally unstable moist flow over the supertall structure. Preliminary results, regarding the impact of the geometric parameters, background wind speed, convective available potential energy (CAPE), and surface roughness length on the spatial distribution of the precipitation, will be discussed in this talk.

ALL INTERESTED ARE WELCOME