Experimental and numerical buoyancy analysis of tracked military vehicle

• Autorzy: Kotowski M. , Barnat W. , Grygorowicz M. , Panowicz R. , Dybcio P.
• Języki publikacji: EN

Abstrakty

EN

The paper presents experimental validation of numerical flow analysis around tracked amphibious military vehicle. The aim of the study was to validate the simulation results and visualize the flow around optimized geometry To perform numerical simulations, a Computational Fluid Dynamics code FLUENT was used. The software is dedicated to model flow, turbulence, heat transfer, and reactions. The area was divided into two domains – air and water. During the simulation, water was moving with speed specified in standardization. However the numerical techniques are constantly developed and improved there is still a strong need for verification especially in buoyancy analysis and water performance evaluation. Results showed quite good agreement with literature after some modifications of the model. Then the flow was numerically visualized. That allowed in-depth analysis of the flow around each of vehicle's parts and some major and minor modifications were proposed. Modified geometry was analyzed and obtained results will be compared with previous ones. Additional stability and manoeuvrability tests were conducted. The results will be used to modify the geometry of vehicle and conduct experimental tests to verify the numerical code performance and check the actual change in vehicle's water performance. Future work will also consider propeller influence on results.

Słowa kluczowe

EN

buoyancy; military vehicle; amphibious vehicle; CFD

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2012
• Tom: Vol. 19, No. 4
• Strony: 321--324
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Kotowski M.

autor

Barnat W.

autor

Grygorowicz M.

autor

Panowicz R.

autor

Dybcio P.

• Military University of Technology Department of Mechanics and Applied Computer Science Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: [phone], fax: [phone],

Bibliografia

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• [4] Wewiórski, S., Konstrukcja stalowego kadłuba okrętowego, Wyd. Morskie, Gdansk 1977.
• [5] Bogucki, D., Czarnecki, S., Geometria kształtu kadłuba, Biblioteka okrętownictwa, Wydawnictwo Morskie, Gdansk 1983.
• [6] Helvacioglu, S., et al., Improving the river crossing capability of an amphibious vehicle, Ocean Engineering, Vol. 38, Is. 17–18, 2011.