X形プローブおよび1本の熱線プローブによる乱流応力の測定値 : 正規分布高強度乱流測定の数値実験

概要

論文の詳細を見る
General hot-wire series response equations fox X and rotated-single-wire probes are derived from the general hot-wire response equation for a hot-wire probe set in an arbitrary direction. Based on these equations, the measurements of a circular free jet and weak isotropic turbulent flow with normal distributions by X and rotated-single-wire probes were numerically simulated. The results show that the measured Reynolds stresses of the circular free jet by both X and rotated-single-wire probes are always smaller than the true values, can not be effectively corrected by the yaw-factor correction, and are not always correctable by the higher-order velocity correlation terms, especially in the case of the measured values by rotated-single-wire probe. The measured Reynolds stresses of the weak isotropic turbulent flow by both X and rotated-single-wire probes can be accurately corrected by the yaw-factor correction.
一般社団法人日本機械学会の論文
1990-12-25