建筑热能通风空调
建築熱能通風空調
건축열능통풍공조
BUILDING ENERGY & ENVIRONMENT
2012年
2期
99-102
,共4页
纵向通风%横通道%数值模拟%速度场%风机选型
縱嚮通風%橫通道%數值模擬%速度場%風機選型
종향통풍%횡통도%수치모의%속도장%풍궤선형
longitudinal ventilation%channel%numerical simulation%velocity field%fan selection
运用双向换气设计算法,确定2000m双洞单向公路隧道车行横通道最佳位置。单横洞距下坡隧道入口为650m,相邻两横通道相距300m。基于流场分析原理,运用CFD ansys软件三维数值模拟横通道及其附近区域的速度场,在合理定位横通道的前提下设置风机调压,选定最佳风机类型和数量,保证通风负荷较小的下坡隧道内的新风量通过横通道送至上坡隧道内。
運用雙嚮換氣設計算法,確定2000m雙洞單嚮公路隧道車行橫通道最佳位置。單橫洞距下坡隧道入口為650m,相鄰兩橫通道相距300m。基于流場分析原理,運用CFD ansys軟件三維數值模擬橫通道及其附近區域的速度場,在閤理定位橫通道的前提下設置風機調壓,選定最佳風機類型和數量,保證通風負荷較小的下坡隧道內的新風量通過橫通道送至上坡隧道內。
운용쌍향환기설계산법,학정2000m쌍동단향공로수도차행횡통도최가위치。단횡동거하파수도입구위650m,상린량횡통도상거300m。기우류장분석원리,운용CFD ansys연건삼유수치모의횡통도급기부근구역적속도장,재합리정위횡통도적전제하설치풍궤조압,선정최가풍궤류형화수량,보증통풍부하교소적하파수도내적신풍량통과횡통도송지상파수도내。
Determined the best position of cross-channel in double holes one-way highway tunnel by using air interchange.The single channel from the downhill tunnel entrance for 650 m,the best spacing between two horizontal channels is 300 m.Based on the flow field analysis principle of operation ventilation system,and used CFD ansys software to 3-d numerical simulate velocity field in the channel and the vicinity of it,set the fan under the premise of orientation the channel in reasonable for adjusting pressure,selected the best surge fan type and quantity,to ensure that the fresh air in the tunnel which have smaller ventilation load delivered to the tunnel which have larger ventilation load through cross-channel.
