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Water capsule flight : a theoretical analysis and experimental verification

Śmigielski G., Lewandowski D., Dygdała R. S., Stefański K.

Biuletyn Wojskowej Akademii Technicznej

2010

Vol. 59, nr 2

145-152

The paper presents theoretical models of flight of water-filled bag dropped from an aircraft moving horizontally. Results of numerical computations based on this model are compared with parameters of trajectory of the bag dropped from a helicopter.

W pracy przedstawiono wyniki modelowania lotu pojemnika wypełnionego wodą, zrzucanego ze statku powietrznego, przemieszczającego się horyzontalnie. Wyniki obliczeń toru lotu pojemnika porównywane są z zarejestrowaną eksperymentalnie trajektorią kapsuły wodnej zrzucanej z helikoptera.

Water capsule flight - a theoretical analysis, experimental setup and experimental verification

Śmigielski G., Lewandowski D., Dygdała R. S., Stefański K., Urbaniak W.

Metrology and Measurement Systems

2009

Vol. 16, nr 2

313-321

A bag filled with water is an excellent source of explosion-produced water spray which can be used for extinguishing large fires or for other purposes. The paper presents theoretical models of flight of a bag filled with water, dropped from an aircraft moving horizontally. Results of numerical computations based on this model are compared with results of measurements for the trajectory of a bag dropped from a helicopter. A description of the experimental and numerical setup for this experiment are also discussed.

Explosive Formation and Spreading of Water-Spray Cloud - Experimental Development and Model Analyses

Stefański K., Lewandowski D., Dygdała R. S., Kaczorowski M., Ingwer-Żabowska M., Śmigielski G., Papliński A.

Central European Journal of Energetic Materials

2009

Vol. 6, nr 3-4

291-302

The paper presents results of experimental investigations and model analysis concerning the expansion of explosively produced water-spray cloud. The regular shape of water-spray cloud produced by a charge placed in a bag flled with water is attained. Effective dispersion of bags containing 600 up to 1500 litres of water is attained. The rise and deceleration of external zone of water-spray cloud is described analytically. The parameters of pressure feld evolving around the explosively formed spray cloud were registered.