Laboratory modeling in urban climatology

Authors

  • Анна Валерьевна Евграфова (Anna V. Evgrafova) Institute of Continuous Media Mechanics UB RAS
  • Андрей Николаевич Сухановский (Andrey N. Sukhanovskii) Institute of Continuous Media Mechanics UB RAS

DOI:

https://doi.org/10.17072/1994-3598-2020-4-37-42

Keywords:

natural convection, heat exchange

Abstract

The paper presents a new approach to the problems of urban climatology, which is based on a laboratory modeling of heat transfer processes in the urban landscape conditions. As an experimental model, we used a three-dimensional layout of the central part of Perm, which takes into account the complex terrain, location and height of buildings on an area of five square kilometers. As an idealized model configuration we considered the nocturnal cooling process of megapolis. The process of cooling of the city model surface after prolonged heating by infrared radiation was studied. The key issue is dependence of the heat transfer on the type of urban structure. The influence of the building density on the cooling process of the layout surface was studied. The comparison was made for two areas with 70 and 90 percent of open area. It was shown that an increase in the number of buildings has influence on the cooling process, which is probably connected with variation of convective circulation and decreasing of the ventilation efficiency. However, stagnant zones with high temperatures in areas of high building density were found for both cases.

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Published

2020-12-25

How to Cite

Евграфова (Anna V. Evgrafova) А. В., & Сухановский (Andrey N. Sukhanovskii) А. Н. (2020). Laboratory modeling in urban climatology. Bulletin of Perm University. Physics, (4). https://doi.org/10.17072/1994-3598-2020-4-37-42

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Section

Regular articles

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