دورية أكاديمية
On the generation of turbulence with a perforated plate
| العنوان: | On the generation of turbulence with a perforated plate |
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| المؤلفون: | Liu, Rui, Ting, David S.K., Rankin, Gary W. |
| المصدر: | Mechanical, Automotive & Materials Engineering Publications |
| بيانات النشر: | Scholarship at UWindsor |
| سنة النشر: | 2004 |
| المجموعة: | University of Windsor, Ontario: Scholarship at UWindsor |
| مصطلحات موضوعية: | Hot-wire anemometer, Perforated plate, Turbulence integral length scale, Turbulence intensity, Wind tunnel |
| الوصف: | The root-mean-square of the turbulence velocity fluctuation components, u′ and v′, and the integral length scale, L, were measured downstream of a perforated plate inside a wind tunnel test section using a hot-wire anemometer. Nine combinations of three hole diameters (D=25.4, 38.1 and 50.8 mm) and three plate solidity values (σ=35%, 50% and 60%) were investigated at three downstream locations (X=20D, 30D and 40D) for three Reynolds number values (Re= 15,000, 22,000 and 29,000). Over the range of conditions considered, the results indicated that Re had no obvious effect on the normalized turbulence parameters u′/U, v′/U and L/D. The dimensionless turbulence intensity decreased with X/D with a power law relationship, but increased with σ in an exponential fashion over the range of values considered. The plate with a 35% solidity was found to possess the highest degree of homogeneity in terms of the uniformity of the turbulence intensity over any cross-section. The turbulence was more uniform in the region where the corresponding flatness factor, F, of the turbulence fluctuation velocity was approximately equal to 3. © 2003 Elsevier Inc. All rights reserved. |
| نوع الوثيقة: | text |
| اللغة: | unknown |
| العلاقة: | https://scholar.uwindsor.ca/mechanicalengpub/286Test; https://doi.org/10.1016/S0894-1777Test(03)00106-7 |
| DOI: | 10.1016/S0894-1777(03)00106-7 |
| الإتاحة: | https://doi.org/10.1016/S0894-1777Test(03)00106-7 https://scholar.uwindsor.ca/mechanicalengpub/286Test |
| رقم الانضمام: | edsbas.3FFB06C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/S0894-1777(03)00106-7 |
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