Turbulence velocity spectra and intensities in the inflow of a turbine rotor

Turbulence velocity spectra and intensities in the inflow of a turbine rotor
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涡轮转子流入的湍流速度谱和强度

DOI:
10.1017/jfm.2019.339
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发表时间:
2019
影响因子:
3.7
通讯作者:
Milne I
Milne I
中科院分区:
工程技术2区
文献类型:
--
作者:
Milne I

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计算了涡轮转子入流中湍流速度向流分量的谱和强度的变化。当湍流相对于转子直径较小时,初始流量在极限处计算。快速畸变理论(RDT), Batchelor & Proudman (Q. J. Mech)。达成。数学,vol. 7 (1), 1954, pp. 83-103) (BP),对于小尺度湍流,结合了波动势流场对湍流的影响,这些湍流是由入射湍流与转子直接相互作用引起的,作为一个阻力片。然后对较大长度尺度的湍流进行二次计算。计算结果与商用风力机和潮汐风力机转子的入流速度测量结果进行了比较。
The changes in spectra and intensities of the streamwise component of turbulent velocity are calculated in the inflow of a turbine rotor. The flow is initially calculated in the limit when the turbulence is of small scale compared with the rotor diameter. Rapid distortion theory (RDT), Batchelor & Proudman (Q. J. Mech. Appl. Maths, vol. 7 (1), 1954, pp. 83–103) (BP), for small-scale turbulence is combined with the effect of the fluctuating potential flow field on the turbulence caused by the direct interaction of the incident turbulence with the rotor as a sheet of resistance. A second computation is then carried out for turbulence of larger length scale. The results of the calculations are compared with velocity measurements in the inflow of both a commercial wind turbine and a tidal turbine rotor.
湍流快速扭曲进入开放式涡轮转子
DOI: 10.1017/jfm.2017.400
发表时间: 2017
影响因子: 3.7
作者:
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通讯作者: Graham J
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发表时间: 2017
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