Determined Abu-Khov length over Baghdad city
Other Title(s)
تحديد طول أبوكوف فوق مدينة بغداد
Joint Authors
Tawfiq, Marwa Khalid
Hassun, Ahmad Fattah
Source
Journal of Engineering and Sustainable Development
Issue
Vol. 23, Issue 3 (31 May. 2019), pp.99-113, 15 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2019-05-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Abstract EN
atmospheric stability is very important parameter because is ruled the dissipation of air, in this study modern device depend on sound wave used to measure atmospheric stability by Monin-Abukhov length (L) and scaling parameter z/L over Baghdad city at summer season months.
This parameter z-zd/L need to estimated topographic surface by morphometric analysis to obtain zero plane displacement (zd=10.4m) and roughness length (zo=1.4m) from domain wind direction (from North to South at this study).
At this study 2640 run done, 79% unstable, 12.6% neutral, and 8.3% stable, there is also subdivision for these results in cases unstable and stable condition to very and slightly.
Classification is also done at daytime and nighttime, where the rates for unstable at daytime and nighttime is high and nearly have small difference, but in neutral and stable there is clear difference.
Similarity function and scaling parameter from monin-Abu khov theory is calculated to test the turbulent and also can be comported with previous studies such as Businger and atmospheric stability is very important parameter because is ruled the dissipation of air, in this study modern device depend on sound wave used to measure atmospheric stability by Monin-Abukhov length (L) and scaling parameter z/L over Baghdad city at summer season months.
This parameter z-zd/L need to estimated topographic surface by morphometric analysis to obtain zero plane displacement (zd=10.4m) and roughness length (zo=1.4m) from domain wind direction (from North to South at this study).
At this study 2640 run done, 79% unstable, 12.6% neutral, and 8.3% stable, there is also subdivision for these results in cases unstable and stable condition to very and slightly.
Classification is also done at daytime and nighttime, where the rates for unstable at daytime and nighttime is high and nearly have small difference, but in neutral and stable there is clear difference.
Similarity function and scaling parameter from monin-Abu khov theory is calculated to test the turbulent and also can be comported with previous studies such as Businger and other.
American Psychological Association (APA)
Hassun, Ahmad Fattah& Tawfiq, Marwa Khalid. 2019. Determined Abu-Khov length over Baghdad city. Journal of Engineering and Sustainable Development،Vol. 23, no. 3, pp.99-113.
https://search.emarefa.net/detail/BIM-1113316
Modern Language Association (MLA)
Hassun, Ahmad Fattah& Tawfiq, Marwa Khalid. Determined Abu-Khov length over Baghdad city. Journal of Engineering and Sustainable Development Vol. 23, no. 3 (May. 2019), pp.99-113.
https://search.emarefa.net/detail/BIM-1113316
American Medical Association (AMA)
Hassun, Ahmad Fattah& Tawfiq, Marwa Khalid. Determined Abu-Khov length over Baghdad city. Journal of Engineering and Sustainable Development. 2019. Vol. 23, no. 3, pp.99-113.
https://search.emarefa.net/detail/BIM-1113316
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1113316