Preliminary field test of an urban canyon wind flow model

1990 ◽  
Vol 15 (3-4) ◽  
pp. 325-332 ◽  
Author(s):  
G.T. Johnson ◽  
L.J. Hunter ◽  
A.J. Arnfield
Keyword(s):  
Field Test ◽  
Flow Model ◽  
Urban Canyon ◽  
Wind Flow

A Drainage Wind Flow Model

1975 ◽  
Vol 10 (3) ◽  
pp. 177-190
Author(s):  
Edward M. Macomber ◽  
Joe O. Ledbetter
Keyword(s):  
Flow Model ◽  
Wind Flow

State-space representation of the wind flow model in wind farms

Wind Energy ◽  
2013 ◽  
Vol 17 (4) ◽  
pp. 627-639 ◽  
Author(s):  
Maryam Soleimanzadeh ◽  
Rafael Wisniewski ◽  
Arno Brand
Keyword(s):  
State Space ◽  
Flow Model ◽  
Wind Farms ◽  
Space Representation ◽  
Wind Flow ◽  
State Space Representation

scholarly journals TINJAUAN TERHADAP STRATEGI PENGHAWAAN RUANG PERKOTAAN MELALUI ATAP HIJAU

2018 ◽  
Vol 16 (02) ◽  
pp. 76
Author(s):  
M Donny Kurniawan ◽  
Suhendri .
Keyword(s):  
Fluid Dynamics ◽  
Urban Heat Island ◽  
Cfd Simulation ◽  
Urban Canyon ◽  
Outdoor Thermal Comfort ◽  
Wind Flow ◽  
Heat Island ◽  
Urban Heat ◽  
Computational Fluid Dynamics Cfd ◽  
Roof Garden

<p>Kenyamanan termal di ruang luar menjadi isu yang penting saat ini akibat kenaikan yang signifikan pada suhu udara perkotaan. Kenaikan suhu ini diakibatkan oleh perubahan iklim global dan fenomena pulau panas perkotaan (Urban Heat Island) faktor pulau panas perkotaan ini dapat direduksi salah satunya dengan penghawaan pasif di ruang-ruang perkotaan. Dalam rancangan kota, penghawaan perkotaan dapat berupa pengaturan massa-massa bangunan, orientasi jalan, sampai ke detail desain bagunan yang dirancang untuk mengalirkan angin. Kota dengan penghawaan perkotaan yang baik dapat melepaskan panas yang terperangkap di antara bangunan melalui angin, juga dapat memberikan kenyamanan termal pada ruang luar. Penelitian ini bertujuan untuk mengetahui efektivitas strategi pengahawaan perkotaan dengan perletakan atap hijau di bangunan tinggi. Efektivitas ini ditinjau dari hasil simulasi Computational Fluid Dynamics (CFD) terhadap berbagai posisi perletakan atap hijau pada bangunan tinggi. Hasil simulasi didapat dari dua metode simulasi, yaitu CFD 3 dimensi pada skala kota dan CFD 2 dimensi pada urban canyon. Kedua simulasi tersebut menunjukkan bahwa atap hijau yang diletakkan pada posisi yang tepat di sebuah bangunan tinggi dapat memicu pergerakan angin yang potensial bagi reduksi pulau panas perkotaan sekaligus memberikan kenyamanan termal ruang luar di perkotaan.</p><p> </p><p>Kata kunci: <em>kenyamanan termal ruang luar, pulau panas perkotaan, atap hijau, CFD</em></p><p><em> </em></p><p><strong> </strong></p><p align="center"><strong><em>ABSTRACT</em></strong></p><p><em>Cities are facing temperature increase due to global warming and urban heat island. Although the global warming needs to be solved with global acts, the urban heat island presumably can be reduced by ventilated city strategies. Ventilated cities are designed to create a preferable wind flow in the city’s spaces. Thus, it releases heat that is trapped in the urban canyon and reduces urban heat island. Wind generated by the strategy could also provide outdoor thermal comfort in the cities. One of the ventilated city strategies are by utilizing roof garden for high rise buildings. Therefore, this research is aimed to identify the effectivity of roof garden in delivering wind flow. Two computational fluid dynamics (CFD) simulation schemes had been analyzed, and this paper reviews the results. The schemes are 3D CFD simulation for urban area and 2D CFD simulation for urban canyon. Review of the result analysis shows that roof garden is potential to drive a sufficient wind flow as long as its position is appropriate.</em></p><p><em> </em></p><p><em>Keywords : </em><em>outdoor thermal comfort, urban heat island, roof garden, CFD</em><em></em></p>

Analytical three-dimensional wind flow model for real-time wind farm simulation

2020 ◽  
Vol 14 (15) ◽  
pp. 2840-2851
Author(s):  
V. Kipke ◽  
J. Chhor ◽  
C. Sourkounis
Keyword(s):  
Real Time ◽  
Wind Farm ◽  
Flow Model ◽  
Three Dimensional ◽  
Wind Flow

scholarly journals A Numerical Study of Wind Flow Over a Coal Storage Shelter

10.14311/1692 ◽  
2012 ◽  
Vol 52 (6) ◽  
Author(s):  
Tomáš Bodnár ◽  
Ludek Beneš ◽  
Luboš Pirkl ◽  
Eva Gulíková
Keyword(s):  
Flow Model ◽  
Stokes Equations ◽  
Numerical Study ◽  
Navier Stokes ◽  
Wind Flow ◽  
Two Dimensional ◽  
Navier Stokes Equations ◽  
Structured Grid ◽  
Impermeable Wall ◽  
Volume Method

This paper presents some of the main numerical results obtained while simulating the wind flow over a shelter covering a coal storage. The aim of this numerical study was to evaluate the change in flow patterns caused by adding an impermeable wall to the originally open shelter. The numerical simulations of selected two-dimensional cases were performed using an open-source CFD code. The flow model is based on Reynolds-Averaged Navier-Stokes Equations solved using a finite-volume method on a structured grid. The turbulence is parametrized using the standard k − ε model. Two shelter wall configuration variants are evaluated, and are compared with the original open shelter setup.

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