Simulation Research on the Effects of Minor Disturbance on the Decrease of Surface-layer Temperature Inversion in Urumqi

DOI

10.2991/978-94-6463-746-5_21How to use a DOI?

Keywords

Numerical simulation; Turbulence model; FLUENT; Destroy temperature inversion; Intensity change

Abstract

The layer of temperature inversion hinders the vertical movement of air currents, especially in areas with mountainous terrain. In winter, when solar radiation is diminished, mountain breezes intensify the diurnal temperature inversion layer, which in turn restricts the dispersion of soot, pollutants, and condensed water vapor, worsening air quality. This research utilizes the FLUENT fluid simulation tool to investigate atmospheric interactions linked to the disturbance of the temperature inversion by introducing disruptions at its base, with a particular emphasis on the temperature inversion occurrence in Urumqi from December 20, 2017. The findings reveal that disruptions at the bottom of the temperature inversion layer can promote the exchange of cooler surface air with the warmer air above, shifting the atmospheric stability from a stable state to an unstable one. This induced upward motion boosts horizontal diffusion and creates a localized ‘circulation.’ The disturbance affects the temperature inversion across a diameter of roughly 1000 meters, effectively disrupting the inversion layer. The results of the simulation offer significant theoretical insight to support the implementation of artificial temperature inversion disruption as a means to alleviate and manage air pollution.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Ren Cai
AU  - Adila Keyimu
AU  - Keming Zhao
PY  - 2025
DA  - 2025/05/27
TI  - Simulation Research on the Effects of Minor Disturbance on the Decrease of Surface-layer Temperature Inversion in Urumqi
BT  - Proceedings of the 2025 International Conference on Agriculture and Resource Economy (ICARE 2025)
PB  - Atlantis Press
SP  - 215
EP  - 225
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-746-5_21
DO  - 10.2991/978-94-6463-746-5_21
ID  - Cai2025
ER  -