Akademik Veri Yönetim Sistemi
Experimental Uncertainty in Fluid Measurements. Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers., Boston, MA, USA, cilt.58, ss.21-27
An analysis of errors in the mean velocity components and turbulence quantities measured by a three-component LDA system with nonorthogonal channels is given. Experimental data are presented to support the error analysis results. Measurement errors for two distinct LDA arrangements are compared with each other. The analysis and experimental data show that when the angle between channels is smaller than 45 degree , the errors in the spanwise mean velocity, the rms velocity involving fluctuations in the spanwise direction and the turbulent shear-stress component involving fluctuations in the spanwise and streamwise directions are much larger than the errors in the other mean velocity components, rms velocities and shear-stress components, respectively.