Numerical Simulation Aerodynamic Field In The Furnace With Whirl Burner

The paper researches on NO.2 boiler's whirl burner of a power plant, makes a numerical simulation of the Central-Fuel-Rich whirl coal combustion burner. Calculation of gas phase flow field makes gas phase as continuum bases on RNG K-εmodel in Euler system, calculation of solid phase uses the random orbit model which can reflect complex experience of particle moving and wall collision in Lagrange system, uses PISC algrange to make a numerical simulation of burner's gas-solid multi-phase flow. Analyses whirl burner with different blade's angle of tapered concentrator influences on velocity field, disclosures the moving feature and separative mechanics of gas-solid flow in whirl burner. Makes a numerical simulation of air-flow organization in boiler, disclosures stable burning mechanics of the whirl coal combustion burner.