04831nas a2200481 a 4500 20260819090807.0 210315s2017 th uu m rtt 0| a1eng d .b12320511 AIT Thesis no.WM-17-23 Chanakarn Chanphu Wind-driver rainfall and runoff estimation for tall building Pathum Thani, Thailand : Asian Institute of Technology, 2017 1 online resource (87 leaves) : ill. Thesis; no.WM-17-23 A thesis submitted in partial fulfillment of The requirements for the degree of Master of Engineeing in Water Engineering and Management Thesis (M.Eng.) - Asian Institute of Technology, 2017 Nowadays, increasing urbanization has increased flash flooding after sudden rain. Land use and other human activities also influence the peak discharge of floods. The Increase in high- rise buildings brings changes to rainfall-runoff characteristics. In highly developed areas, high-rise and tall buildings are constructed in a small catchment area. The vertical area is greater than the drainage (horizontal) area. It seems that increasing area influences runoff and it does not included in conventional design method which uses the changing of physical conditions for runoff coefficient (C) and time of concentration (t-). This study proposes runoff estimation calculated from the interaction between wind-driven rainfall and high-rise and tall buildings. For rainfall, wind-driven rainfall can be calculated by ISO Standard of hygrothermal performance of building which in semi-empirical method. The discharge is calculated from flow that occurs along the facade of tall building. The developed kinematic wave is used to estimate runoff described by the continuity equation and a uniform flow equation. Nusselt equation for thin film flow is applied momentum equation. The effects of tall building and wind-driven rainfall shows increase in rainfall intensity. The wind speed has the most effect on runoff in the modified kinematic wave model. The second and the least effect occur by changing rainfall intensity with height and wind direction, respectively. The rainfall intensity approximately 20 mmlh with appropriate wind direction and speed lead to runoff greater than that from rational method. Estimated runoff is found to have linear relationship with rainfall intensity. From modeling results, rainfall intensity has significantly affected on time of concentration. The higher intensity gives less time of concentration which means the peak volume of runoff will reach faster while least effect by changing height. Moreover, the runoff from aside of tested building is greater than that from building roof when ratio of facade area and horizontal area over 5 times with rainfall intensity more than 40 mmlh and 5 mls for wind speed. The present study successfully shows that interaction of the high-rise/tall building (high-rise building defined by high while tall building defined by proportion) and meteorological variables bring in increased rainfall intensity and consequently, estimated runoff. The new design concept on urban drainage then must be revisited and revised in order to cope with the development change in highly urbanized area. Tall buildings Rain and rainfall Runoff Sutat Weesakul, Chairperson Babel, Mukand Singh, Examination Committee Duc Nguyen Hoang, Examination Committee Somchai Chonwattana, Examination Committee HM's King Scholarship, Scholarship Donor Asian Institute of Technology. Thesis; no. WM-17-23 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B04674 .b12320511 mnait m 240422 0 210315 m a m 0 mnait mnait mnarc mnarc 40 61 20 Barcode : 30050120875512 CREATED : 2019-11-07 RECORD # : i13204555 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : - CREATED : 2019-11-07 RECORD # : i13204567 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121011620 CREATED : 2021-03-15 RECORD # : i13332156 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121011612 CREATED : 2021-03-15 RECORD # : i13332168 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 129228 129228 0 0 0 0 MAIN MAIN mnarc 2026-08-19 0 AIT Thesis no.WM-17-23 30050120875512 2026-08-19 09:08:07 2026-08-19 40 0 0 0 0 MAIN MAIN mnarc 2026-08-19 0 AIT Thesis no.WM-17-23 2026-08-19 09:08:07 2026-08-19 61 0 0 0 0 MAIN MAIN mnait 2026-08-19 50.00 0 AIT Thesis no.WM-17-23 30050121011620 2026-08-19 09:08:07 1 2026-08-19 20 0 0 0 0 MAIN MAIN mnait 2026-08-19 50.00 0 AIT Thesis no.WM-17-23 30050121011612 2026-08-19 09:08:07 2 2026-08-19 20