کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
293449 511136 2010 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characteristic of wind loads on a hemispherical dome in smooth flow and turbulent boundary layer flow
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Characteristic of wind loads on a hemispherical dome in smooth flow and turbulent boundary layer flow
چکیده انگلیسی

A series of wind tunnel tests was performed to investigate the effects of Reynolds number on the aerodynamic characteristics of hemispherical dome in smooth and turbulent boundary layer flows. Reynolds number of this study varies from 5.3×104 to 2.0×106. Instantaneous pressures were measured through high frequency electronic scanner system. Mean and RMS pressure coefficients on the center meridian and the overall pressure patterns of domes were calculated for comparative study. The results indicate that, in smooth flow, the transition of separation flow occurs in-between Re=1.8×105–3.0×105 and pressure distributions become relatively stable after Re>3.0×105. In turbulent flow, the transition of separation flow occurs at lower Reynolds number, Re<1.1×105, while the pressure distributions become Reynolds number independent at Re=1.0–2.0×105.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 98, Issues 6–7, June–July 2010, Pages 328–344
نویسندگان
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