a theme Urgency.
Vsevozrastajushchaja the competition in motor industry demands heightening of level of comfort and safety of the driver n passengers in car salon that is linked, in particular, with efficiency of functioning of system of heating and ventilation.
Design procedures now in use and projection of systems of heating and ventilation are founded on the integral methods, allowing to define only average parametres of a stream.
The predominating role at projection of such systems is assigned to experimental researches, road and to environmental tests. By working out, projection and an estimation of efficiency of systems of heating and ventilation within the limits of the classical approach were occupied: Fashiev H.A., Basyrov P.P., Andronov V. N, Palutin J.I., Mihajlovskij E.V., Shtrobel V. K.In the conditions of considerable abbreviation of financing of scientific researches and funds of development of manufacture, experimental researches of systems of heating and ventilation are practically impracticable, and existing integral approaches at calculation of such systems do not allow to create competitive effectively operating constructions.
Foreign manufacturers actively use for the last few years new techniques of projection of the specified systems with use SAPR which includes certificated CAD, ITSELF, CAE software packages. CAD and CAE packages allow in short periods and with an exactitude high scale to design (to construct geometry), to spend calculation and the analysis of the problems, a developed article, and with the help ITSELF packages to receive a ready prototype of an article.
In the given operation are used CAE software products allowing to spend calculation and the analysis of a designed article, a problem hydro-and gases dynamics it is possible to solve by means of the following
Software products: STAR-CD, ANSYS, AVL, etc.
It is necessary to mark, that within the limits of rigid competitive struggle, foreign manufacturers practically do not publish techniques and concrete results of technique of projection of these systems.
In operation one of possible and perspective techniques of projection and calculation of systems of heating and ventilation with use of the certificated software packages of STAR-CD, ANSYS, on car Izh example-2126 is considered.
The physical processes occurring in system of heating and ventilation, from the point of view of internal aerodynamics represent processes of a nonstationary three-dimensional turbulent current and heat exchange. Owing to complexity of a considered problem it dissect into a number of more simple. One of them - calculation of internal aerodynamics of system of heating. Having solved this problem, receive boundary conditions for calculation of ventilation of salon of the car.
The given operation also is devoted working out of technique of projection and calculation of internal aerodynamics of system of heating of car Izh - 2126.
Research plant: system of heating and car IZH-2126 ventilation.
Object of research: internal aerodynamics of system of heating and ventilation.
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