Research On Wind Comfort Of Outdoor Activity Spaces In University Campuses

In recent years,with the rapid development of higher education,the number of students has been increasing,the demand for campus construction has been increasing,and new buildings has been increasing in college campuses.The appearance of new buildings has changed the wind environment of campus,and even reduced the wind comfort of outdoor activity space.Taking the central garden of Baotu Spring Campus of Shandong University as an example,this paper studies the comfort of the outdoor outdoor activity space wind environment in colleges and universities.This paper explores the influence of new campus buildings on wind comfort of outdoor activity space and summarizes the design strategy of new campus buildings aiming at wind comfort of outdoor activity space.Firstly,a comprehensive evaluation method for wind comfort of outdoor activity space in university campus was proposed based on extensive literature investigation of outdoor wind environment evaluation,combined with wind speed,wind speed amplification factor and air age.Secondly,through the field research of Baotu Spring Campus of Shandong University,including the measured wind speed of the central garden in the campus and the wind comfort questionnaire survey,the construction of the campus and the wind comfort of the central garden are summarized and analyzed.Thirdly,a campus model based on the central garden of Baotu Spring Campus of Shandong University is established.Based on the typical wind conditions of Jinan in summer and winter,CFD simulation of wind environment is conducted using Phoenics software,and the wind comfort of central garden is evaluated using PCAR.It is concluded that the wind comfort rating of pedestrian height under the prevailing wind direction and wind speed in summer and winter is "excellent" and "good" respectively.The results show that the actual measurement is consistent with the simulation results,which verifies the feasibility and reliability of the comprehensive evaluation method for wind comfort of outdoor activity space in university campus.Finally,the basic model of the central garden and surrounding buildings is established,and the orthogonal test is carried out by CFD simulation.The range analysis and multiple linear regression analysis are carried out on the test results,and the influencing factors of wind comfort of outdoor activity space are summarized.The comprehensive evaluation method of wind comfort of outdoor activity space in university campus is used for evaluation.An evaluation model for predicting wind environment PCAR value of outdoor activity space is established,and a design strategy for new buildings of existing university campuses is proposed,which aims at wind comfort of outdoor activity space,in order to provide useful reference for campus planning and design of universities.