Author/Authors :
Mostafapour, K School of Mechanical Engineering - Iran University of Science and Technology, Tehran, Iran , Nouri, N. M School of Mechanical Engineering - Iran University of Science and Technology, Tehran, Iran , Zeinali, M School of Mechanical Engineering - Iran University of Science and Technology, Tehran, Iran
Abstract :
The hydrodynamic characteristics of autonomous underwater vehicles (AUVs) play a significant role in the
design and analysis of their maneuverability. This paper evaluates the effects of the Reynolds (Re) number on
the hydrodynamic characteristics of AUV for various angles of attack (AOA). To estimate the hydrodynamic
parameters, a numerical modelling based on computational fluid dynamics (CFD) is employed. Reynolds
numbers between 2106 and 150106 were examined at -10º to 10º AOAs. Experimental tests for the same
AUV in Re = 2106 in the water tunnel were carried out for CFD validation. A comparison of the results
showed an acceptable agreement between the numerical method and the experimental results. The results
show that hydrodynamic parameters can be a function of Re and converge on a constant in a limited value
when the Re number increases. Results of independent parameters, can be used for full-scale without the
establishment of dynamic similarity.
Keywords :
Water tunnel , CFD , AUV , Hydrodynamic characteristics
