温度補償型熱線風速計と風の測定におけるその應用について(應用力學)

概要

論文の詳細を見る
A theory of the compensation for temperature of the hot-wire anemometer, which is the same type as that used by Reichardt and Paeshke, is reported. Using this instrument and wind direction meter, the horizontal and vertical components of the wind velocity were measured at the coast of Muramatsu within a limit of low frequencies: The mean velocity distributions follow the logarithmic law, and the horizontal components of the turbulent velocity have similar distributions with that of artificial boundary-layer, while the vertical components have much smaller values. The Reynolds' stress agrees qualitatively with the calculation considering the variation of mean velocity. The Correlations between u' and w' show similar distributions as the wind tunnel experiments. The mixture length has no regularity but increases with 'the height: The time correlation of u' and spectrum of turbulence are calculated and according to Taylor's spectrum theory the Fourier transformation between them are tested.
宇宙航空研究開発機構の論文
1950-10-25