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The measurement-integrated simulation (MI-simulation) is a numerical simulation which feedbacks information of experimental results in order to perform simulations under real conditions. Even if using rough grids, the calculation results become closer to those of experiments. Therefore, the reduction of the calculation time is expected. In this paper, we proposed a monitoring system for pipe flow including unsteady condition using the simulation. The MI-simulation was applied to airflows passed an orifice plate in the pipeline. Firstly, the measured velocities at the downstream of the orifice plate under steady condition were feedback to the simulation. Secondly, the effect of the points and number of velocities to the simulation were investigated. Then, the MI-simulation was applied to an oscillatory flow. The effectiveness of the method was confirmed compared with the experimental results. The calculation time could be much shortened compared with general simulations.

Monitoring of Unsteady Pipe Flow Using Measurement-Integrated Simulation