Influence of grass lawns on the summer thermal environment and microclimate of heritage sites: a case study of Fuling mausoleum, China

Abstract The thermal environment and microclimate of heritage sites has been severely impacted by rapid urbanization. This study collected various meteorological measurement data as a reference for computational fluid dynamics (CFD) simulation settings. Then CFD was applied to simulate the impact lawns on Fuling Mausoleum. We found that soil can cool air through evaporation, thus have specific cooling effect bricked ground. Simulations with lawns, ground temperature decreased 1.56–17.54 °C than simulations without at 14:00, decrease 2.68%–24.20%. Under normal circumstances, when wind speed or relative humidity increased, dropped. Greenbelt vegetation adjust human comfort indicators. consistency difference between actual results shows accurately reflect internal field distribution if selection parameters is reasonable. Theoretical calculation analysis, experimental research, modern computer analysis methods together constitute complete system studying physical environmental problems provide reliable economic results.