The importance of considering measurement probe disturbances in CFD-grade measurements

While reading related literature on CFD simulations concerning flow in cylinders, it was apparent that the invasiveness of the measuring technique is often unaddressed. The effect of invasiveness, was examined through simulations developed to account for the insertion of a hotwire probe at different lengths for the well cited experiment of Sudo et al [1]. The goal was to account for all deviances between simulation and experiment with this consideration. It was shown that the positional uncertainty of the probe accounted for this difference more than any probe invasiveness. The remainder of the paper examines different simulations in the attempt to validate the use of CFD when modeling a cylinder in cross-flow. (author)