| Summary: | 碩士 === 國立雲林科技大學 === 機械工程系碩士班 === 99 === The object of this study was to investigate the tunnel axial flow fan, manufacturers to design blades for the base. Draw the same size but the blade angle of seven groups of different 3-D shape of the axial fan, and wind tunnel simulation of the overall test flow boundary, change to a different pressure, speed of the boundary set.By a CFD simulation analysis is performed in this study with professional turbomachinery analysis software FINE/Turbo.Full multi-grid strategy and multistage Runge-Kutta are considered for computation. Analysis of the distribution of the fan the whole flow field, and prediction fan performance curve.
In this study, the AMCA 210-07 standard wind tunnel apparatus is used for the verification of fan performance. In addition to large errors in wind capacity under,the test results reveal reasonable agreement with those of the numerical ones.The similar law of the speed change performance parameters of the conversion, calculated at different speeds of air flow and pressure, and comparison to fineturb simulation and calculated data. From the simulation results verify the law of similarity can be applied not only on the derivation of the formula, the derived data on the numerical simulation is quite accurate. Finally, the blade angle from a variety of different models to simulate.From the simulation results found in the top of the blade root and leaf angle, the lower the relative performance can be improved. The results and data are then taken as the reference for the optimization of turbomachinery design.
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