The Numerical Simulation of the Flow Field in a Cold Model of Five-stage Cyclone Preheater and Precalciner System

Theflowfieldinacoldmodelof2500t/dfive-stagecyclonepreheaterandprecalcinersystemwasnumericallysimulated.Renaultstressmodel(RSM)turbulentmodelwasadoptedtosimulatetheflowfield,andahybridmeshschemewasselectedtogeneratecalculationmesh.Withthefirstorderupwinddifference,finite-volumemethodwasusedtoconvertturbulentequationsintodifferenceequationspressure-velocitycouplingwhichweresolvedbytheclassicsimplealgorithm,andduringthecourseofnumericalsolution,meshself-adaptingtechnologywasapplied.Themainflowfieldstructuresofthewholesystemandeachpartofthecoldmodelwerestudiedbyanalyzingthesimulationresults.