Abstract
Measurement-integrated simulation (Mi-simulation) is a numerical simulation in which experimental results are fed back to the simulation. Even if a rough grid is used, the calculation results become closer to those of the experiments. Therefore, the simulation is considered to be suitable for monitoring the state of a pipeline since the calculation time can be significantly shortened. Ml-simulation has been applied to airflows passing an orifice plate in a pipeline. In this paper, the feedback values and the control methods of the simulation are investigated under unsteady oscillatory flow conditions. The accuracy and calculation time are compared when either the flow velocities or the pressures are fed back to the simulation. A P and PI controller are applied to obtain the feedback values. It is demonstrated that the calculation time could be considerably reduced over a general simulation for both velocity and pressure feedback, and especially with a P controller.
(Former graduate school student of Tokyo Institute of Technology)
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References
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Kawashima, K., Inoue, S., Funaki, T., Kagawa, T. (2007). Monitoring of Unsteady Flow in a Pipeline with Integrating Measurement and Simulation. In: Koyamada, K., Tamura, S., Ono, O. (eds) Systems Modeling and Simulation. Springer, Tokyo. https://doi.org/10.1007/978-4-431-49022-7_7
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DOI: https://doi.org/10.1007/978-4-431-49022-7_7
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-49021-0
Online ISBN: 978-4-431-49022-7
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