AIR TEMPERATURE CFD SIMULATION OF OUTDOOR SPACE ACCORDING TO HEIGHT CHANGE OF MAIN BUILDING OF APARTMENT COMPLEX

Abstract

The fact that abnormal temperatures and urban heat island phenomena are occurring all over the world has been revealed based on many existing studies. One of the causes of these abnormal temperatures and urban heat islands is human-induced urbanization. (Park Sang-wook, 2019) Nowadays, most cities in the world usually have temperatures between 1℃ and 4℃ higher than those in the surrounding rural areas, and the temperature increase in Korea is more than twice as fast as the average temperature in the world. In the past 100 years, global temperatures have risen by 0.74°C, the average temperature in the six major cities of the Republic of Korea has risen by 1.8°C, the precipitation has risen by 11.6m in the last 10 years, and the sea level by 10cm in 40 years Due to the recent realization of climate change, abnormal climates such as heatwaves, droughts, and cold waves are frequent and the damage is intensifying. The damage from the abnormal climate in Korea is concentrated in urban areas where more than 90% of the people live. (Ministry of Environment 2011)

The reality is that apartment complexes, which account for a high proportion of residential buildings in urban areas today, are designed and built with quantitative development as priority, so the design to respond to climate change is insufficient. To this end, the thermal environment of the outdoor space of the apartment complex was analyzed by applying various types of design element types to the CFD simulation.

Therefore, in this study, by simulating the microclimate environment of an apartment complex, the effect of temperature reduction in the complex according to the change in the height of the main building, a design element of the apartment complex, is to be analyzed in detail by using the CFD simulation program Envi-met.