Aerodynamic drag of radiator in unsteady air flow

Abstract

Nonuniform distribution of velocity of cooling air over the front surface of a radiator increases its drag. The paper analyzes the factors affecting the increase of aerodynamic drag under the influence of unsteady air flow. The degree of drag change depends on aerodynamic properties of radiator core, namely, the curvature of the graph of aerodynamic characteristics of a radiator and nonuniform air velocity field over the front of a radiator. In actual use, increase of drag of a radiator can be more than 20%.

Keywords

radiator / air flow / nonuniform distribution of velocity / aerodynamic drag of radiator

References

[1] Петров А.П., Петров К.А. Методика определения влияния неравномерности поля скоростей воздуха по фронту радиатора на коэффициент его аэродинамического сопротивления // Труды I Международного симпозиума. М.: РАН, 2010. Т.1: Фундаментальные проблемы науки. с. 63-71.

RIGHTS & PERMISSIONS

Petrov A.P.