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- W2356393969 abstract "To dig out the potential temperature drop of a preswirl system,numerical simulations were carried out for the aero-thermodynamics in a cover-plate preswirl rotor-stator cavity.The influences of rotational Reynolds number,non-dimensional mass flow rate and swirl ratio on the system temperature drop and pressure loss were studied,and the corresponding mechanisms were analyzed together with the flow structure in the cavity.Data show that the temperature drop in adiabatic preswirl system is dominated by three aspects:dynamic temperature drop in course of coordinate system transformation,centrifugal temperature increase,and irreversible factors like friction work and viscosity dissipation.Of which,dynamic temperature drop is determined by velocity and relative velocity.These aspects dominate the variation law of temperature drop with rotational Reynolds number,non-dimensional mass flow rate,and swirl ratio.The pressure drop is mainly caused by:aerodynamics loss,centrifugal pressure increase,and variation of dynamic pressure in course of coordinate system transformation.The results show that swirl ratio is the main influential factor to non-dimensional temperature drop and pressure loss coefficient.The influences of mass flow rate,rotating speed,and swirl ratio on the discharge coefficient of nozzle and receiver hole were also discussed." @default.
- W2356393969 created "2016-06-24" @default.
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- W2356393969 date "2010-01-01" @default.
- W2356393969 modified "2023-09-28" @default.
- W2356393969 title "Numerical studies of temperature drop and pressure loss in a cover-plate preswirl system" @default.
- W2356393969 hasPublicationYear "2010" @default.
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