Assessment of economic effect at mathematical modeling of aerodynamic characteristics

Аuthors

Pravidlo M. N., Prokudin S. V.^*

Toropov Machine-Building Design Bureau "Vimpel", 90, Volokolamskoe shosse, Moscow, 125424, Russia

*e-mail: Prokudin810@mail.ru

Abstract

The paper presents the method for economic effect estimation when using new computer hardware (compact super computer) to calculate aerodynamic performance of unmanned aerial vehicles (UAV). It vividly illustrates that computer-aided experiments (calculations) reduce drastically the amount of testing carried out in wind tunnel. By expert estimation of foreign specialists (USA, Great Britain, France, Germany, Israel), depending on flight mode and UAV configurations for which the aerodynamic performance is determined, the wind tunnel tests cost reduction is five times less and even more. In this case, the reduction of tube testing herewith does not lead to loss of volume of information, necessary for high-quality design.

The paper presents the method for calculation of manufacturing process economic component to estimate the aggregate of required expenses and economic effect analysis of a research work on computation cluster design for numerical study of aerodynamic performance. As practice revealed, this method can be successfully applied for economic appraisal of the abovementioned research work conducted in 2013-2015.

As the results of the selected method for economic effect calculation revealed, the expenditures connected with acquisition of a new compact super computer as well as carrying out mathematical modeling are rather significant. But they become justified compared to the number of blowing-downs in a wind tunnel and related explicit costs.

For example, with six testing blow-downs in wind tunnel the expenses are equivalent to the cost of new equipment. Moreover, when the number of estimated six blow-downs is exceeded, the results of comparison show that compact super computer zone of effectiveness comes.

Keywords:

expenses, economic effect, computer modeling, wind tunnel

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