Professional paper

On the influence of the changing state of the atmosphere above the fire site on performance of the helicopter

Milan Vrdoljak orcid.org/0000-0002-2948-3523 ; Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, Zavod za zrakoplovstvo, Zagreb, Hrvatska
Danijel Vuković ; Heli Centar Toplice (HCT), središte za simulatorsku obuku posada helikoptera
Josip Rašić ; GS OS RH, HRZ i PZO, Eskadrila višenamjenskih helikoptera

Abstract

In this paper a developed mathematical model of the atmosphere with certain assumptions as well as mathematical model of the helicopter which comprise a model of its main rotor model. Main result of the simplified mathematical model of atmosphere above the wildfire, as it was expected, is decreasing of density with increasing of temperature anomaly in comparison with standard atmosphere conditions. With density decreasing driven force of the main rotor also decreases (i.e. lift force).

Keywords

open area wildfire firefighting; wildfire mathematical modeling; helicopter performances; aerial firefighting tactics with helicopter

Hrčak ID:

130777

URI

https://hrcak.srce.hr/130777

Publication date:

12.12.2014.

Article data in other languages: croatian

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