ЧИСЛОВИЙ МЕТОД ВИЗНАЧЕННЯ АЕРОДИНАМІЧНИХ ХАРАКТЕРИСТИК ВИСОКОШВИДКІСНИХ ТРАНСПОРТНИХ АПАРАТІВ

Анотація

The problem of determination of aerodynamic descriptions of aircrafts is in-process examined. Methods are examined: Direct Numerical Simulation(DNS); Large Eddy Simulation( LES); Reynolds Averaged Navier-Stokes(RANS). For the mathematical modeling of turbulent flow of the Navier-Stokes equations averaged by Reynolds are used. The problem of shorting of equalizations of Navier-Stokes is analysed. For shorting of the Navier-Stokes equations averaged by Reynolds the one-parameter model of turbulence Spalart – Allmaras. Methodology, algorithm of numeral decision of task and software, is worked out. For numeral integration of the initial system of differential equations a by certainly-volume method is used. Testing of the worked out methodology is conducted on the standard tasks of aerodynamics. A task is decided on determination of aerodynamic descriptions of aircraft of type bearing wing.