Research on Heat and Mass Transfer Law of High Speed Foil Face Gas Film Seal
To explore the thermal performance of high parameter compliant foil face gas film sealing and carry out struc-tural optimization design.Based on fluid simulation analysis software,a thermal performance analysis model for foil face gas film seal was established.Considering the real gas effect of air medium,the gas flow and heat transfer characteristics of the sealing face were studied,and the influence of different working conditions and structural parameters on the highest and av-erage temperatures of various fluids and solid domains on the sealing face was analyzed.The results show that the heat of the foil face gas film seal is mainly concentrated on the flat foil and the sealing dam.As the rotational speed increases or the inlet pressure and minimum gas film thickness decrease,the average and maximum temperatures of each fluid and solid do-main of the sealing ring component increase.The average and maximum temperatures of each fluid and solid domain de-crease with the increase of wedge height and pitch ratio.
high-speed conditionsfoil face gas film sealheat transfer characteristicsstructural optimization
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