Semi-Lagrangian Flux Scheme for the Solution of the Aerosol Condensation/Evaporation Equation
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چکیده
A new method is developed to solve the condensation equation as it relates to air quality models using both semi-Lagrangian and Lagrangian uxes to increase resolution and perform accurately under stringent conditions that occur in the atmosphere. The new method, partitioned ux integrated semi-Lagrangian method (PFISLM), can be used with lower-order interpolators and produces highly accurate results. PFISLM is positive de nite, peak retentive, mass conservative, and suppresses oscillations. Research indicates that the differences between PFISLM and traditional ux integrated semi-Lagrangian methods as proposed by Bott (1989) and Emde (1991) are signi cant when solving the aerosol condensation/evaporation equation. PFISLM is created to handle speci c dif culties associated with the time and space discretization of the aerosol operator in air quality models.
منابع مشابه
Numerical Solution of the Aerosol Condensation/Evaporation Equation
A new method is developed to solve the condensation equation as it relates to Air Quality Models using both semi-Lagrangian and Lagrangian fluxes to increase resolution and perform accurately under stringent conditions that occur in the atmosphere. The new method, Partitioned Flux Integrated Semi-Lagrangian Method (PFISLM), can be used with lower-order interpolators and they produce highly accu...
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تاریخ انتشار 2002