Les analysis of impact of non-uniformity of building height in highly dense urban district on wind environment (Part 2): Transportation and dissipation of total kinetic energy in streamwise and vertical direction; [LES による高密度市街地の建物高さの非一様性が風環境に及ぼす影響の分析(その 2)：主流方向及び鉛直方向の運動エネルギーの輸送及び散逸の構造]

被引：0

作者：

Ishida Y. ^{[1
]}

Endo Y. ^{[2
]}

Mochida A. ^{[1
,3
]}

Shirasawa T. ^{[4
]}

Yoshie R. ^{[5
]}

Tanaka H. ^{[6
]}

机构：

[1] Tohoku University, Japan

[2] Kajima Corporation, Japan

[3] Graduate Tohoku University, Japan

[4] Otsuma Women’s University, Japan

[5] Tokyo Polytechnic University, Japan

[6] Takenaka Corporation, Japan

来源：

Journal of Environmental Engineering (Japan) | 2021年 / 86卷 / 784期

关键词：

Energy dissipation rate; Highly dense urban district; Kinetic energy transport; Large-Eddy Simulation; Non-uniformity of building height;

D O I：

10.3130/aije.86.649

中图分类号：

学科分类号：

摘要：

It has been reported that non-uniformity of building height draws the wind above the urban districts to the pedestrian-level and improve the outdoor ventilation, even in highly dense urban districts. In this study, large-eddy simulations were conducted to study the influence of non-uniformity of building height on the transportation and dissipation of total kinetic energy in urban districts. Moreover, the structures of transport and dissipation of the mean and turbulent kinetic energy in the vertical direction when the wind over the urban district blows down to the pedestrian-level were clarified. © 2021 Architectural Institute of Japan. All rights reserved.

引用

页码：649 / 659

页数：10