Yue P. Method of calculating the aerodynamic characteristics of solid profiles system in the limited flow of viscous fluid

Object - process of flow around the solid profiles system of microplanes with arbitrary mutual orientation in the plane of flow by a stationary flow of a viscous incompressible fluid, and also near the interface; goal - development of method for calculating the aerodynamic characteristics of solid profiles system in the flow past viscous incompressible fluid by a laminar flow that allows the determination of the real aerodynamic characteristics of microtrack devices; methods - generalized theory of vector-tensor analysis, hydrodynamic potentials, the method of boundary integral equations and its numerical realization; results - the dimensionality of the problem is reduced in comparison with other numerical methods, at the same time, the computation time is shortened, which is important in the implementation of the creation of promising aerodynamic layouts for microlet vehicles and their carrier systems, as well as in extreme operating conditions that can not be reproduced in the experiment; novelty - the method for determining the aerodynamic characteristics of solid profiles by a stationary flow of a viscous incompressible fluid in the case of laminar flow has been improved, which makes it possible to numerically solve the problem of flow around the solid profiles system or aerodynamic arrangement of microplanes with small time expenditures, which makes it possible to apply the results of these calculations to design the aerodynamic arrangement of microplanes, the series of interpolation procedures providing an analytical description of the discrete representation of the boundaries of the computational domain in the calculation of integrals on the elements of the boundary by means of linear functions is improved on the basis of the approximation theory, which makes it possible to reduce the complexity of the method for calculating the aerodynamic characteristics of the system of bodily profiles when flowing by a laminar flow of a viscous incompressible fluid; implementation degree - implemented in the work of the State Enterprise "Antonov"; industry - aerospace.