Computing experiment for fire fighting helicopter operation analysis
Aviation technics and technology
Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
AbstractThe simulation approach of water discharge from helicopter liquid tank on external load (EL) is proposed in this article. The application program FlowVision is used for numerical experiment. The experiment-calculated procedure for lifting rotor (LR) velocity field estimation is suggested. This procedure is based on real LR experimental data for different helicopter airspeed and known vertical speed versus radius in LR plane. There is supposed absolute rigidity of liquid tank and rope. The fire is burning round cylinder oil storage tank. The numerical experiment with Ka-32 helicopter is getting for presentation of this simulation approach. This helicopter is moved rectilinearly and evenly with airspeed 38 km/h. This numerical experiment procedure can used for fire-fighting helicopter design and operation analysis.
Keywords:a helicopter; a liquid tank; a computing experiment