Comparison between wind tunnel experiments and field measurement values on flow field in real Urban canyons

被引：0

作者：

Katsuki, Takeaki ^{[1
]}

Sato, Ayumu ^{[1
]}

Michioka, Takenobu ^{[1
]}

Hagishima, Aya ^{[2
]}

机构：

[1] Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry

[2] Interdisciplinary Graduate School of Engineering Sciences, Kyusyu Univ.

来源：

Journal of Environmental Engineering | 2012年 / 77卷 / 674期

关键词：

Flowfield; Laser Doppler Velocimeter; Particle ImageVelocimetry; Urban canyon; Wind tunnel experiment;

D O I：

10.3130/aije.77.313

中图分类号：

学科分类号：

摘要：

Improvement of outdoor ventilated environment contributes notonlyto energy-saving and suppression of CO2 but also toindoorairqualityand itscomfort.Toconsider outdoor well-ventilatedenvironment, a flow field withinideal urbancanyons hasbeeninvestigated by wind tunnel experiment, but thebehaviorsof turbulence and mean characteristics ofcanyon vortices within real urbancanyons arestill not comprehended. In thisstudy, a wind tunnel experiment fora real apartmentcomplex wasconducted to confirm the reproducibility of flow field within the canyon. The apartment complex islocated at Musashino city,Tokyo, where fieldmeasurement was conducted.Thebuildings witha height more than two-stories were resolved within 200m radius under the modellength ratio of 1/150 was measured using both PIV (ParticleImageVelocimetry) and LDV (Laser Doppler Velocimeter). Thesemeasurements at5 points withinthe urban canyon werecompared with field measurement values. The wind velocities andturbulentintensitiesobtained by bothPIV and LDV fairly agreed withthe field measurement values withintheurban canyons, though a small-scale surface roughnesslike a balcony was notmodeled in the present wind tunnel experiment.

引用

页码：313 / 319

页数：6

共 14 条

[1]

Brown M.J., Lawson R.E., Decroix D.S., Lee R.L., Mean Flow andTurbulence Measurement around a 2-DArrayof Buildings in a WindTunnel, Report LA-UR-99-5395, (2000)

[2]

Brown M.J., Lawson R.E., Decroix D.S., Lee R.L., ComparisonofCenterline Velocity Measurements Obtained Around 2D and 3D BuildingArrays in aWindTunnel, Proceedingsofthe 2001, International Symposium on Environmental Hydraulic, (2001)

[3]

Leitl B., Bezpalcova K., Harms F., Wind tunnel modelling of the MUST experiments, Proceedingof the 11th International ConferenceonHarmonization within Atmospheric Dispersion Modelling for RegularPurposes, 7, pp. 435-439, (2007)

[4]

Yee E., Biltoft C.A., Concentration Fluctuation Measurements in a Plume Dispersing through a Regular Array of Obstacles, BoundaryLayer Meteorology, 111, pp. 363-415, (2004)

[5]

Monnier B., Neiswander B., Wark C., Stereoscopic particle image velocimetry measurements in an urban -type boundary Layer: Insightinto flow regimes and incidence angle effect, Boundary Layer Meteorology, 135, 2, pp. 243-268, (2010)

[6]

Kanda M., Progress in the scale modeling of urban climate ReviewTheor, Appl. Climatol., 84, 9, pp. 23-33, (2005)

[7]

Offerle B., Eliasson I., Grimmond C.S.B., Holmer B., Surface heating in relation to air temperature,wind andturbulence in an urbanstreetcanyon, Boundarylayer Meteorology, 122, pp. 273-292, (2006)

[8]

Klein P.K., Rotach M., Mean flow and turbulence characteristics in an urban roughness sublayer, Boundary Layer Meteorology, 111, pp. 55-84, (2004)

[9]

Robins A., Cheng H., Hayden P., Lawton T., Flow visualisationstudies - I, Note DAPPLE - EnFlo 04, (2004)

[10]

Arnold S.J., ApSimon H., Barlow J., Et al., Introduction to the DAPPLE air pollution project, Science of the Total Environment, 332, 10, pp. 139-153, (2004)

← 1 2 →