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Effective feedback algorithm for application of MI-simulation to turbulent orifice flow
Mitsuhiro Nakao,Kenji Kawashima,Toshiharu Kagawa 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Measurement-integrated simulation (MI-simulation) is a numerical simulation in which experimental results are fed back to the simulation. The calculated values become closer to the experimental values. In this paper, we propose a new feedback method based on the conservation of momentum for MI-simulation built-in standard k-εmodel to turbulent orifice flow. The axial velocities in simulation are compensated by using proportional controllerusing the estimated pressure distribution based on the conservation of momentum. The signals are fed back to the axial velocity control volumes in the cross section downstream of the orifice. The effectiveness of the method was confirmed compared with the experimental results at downstream of orifice.