WSEAS Transactions on Fluid Mechanics
Print ISSN: 1790-5087, E-ISSN: 2224-347X
Volume 9, 2014
Numerical Analysis of Unsteady Transonic Flow over Rocket Nose
Authors: Somdeb Bandopadhyay, Dong-Hyun Kim
Abstract: Computational analysis has been performed for unsteady fluid flow in transonic regime over rocket like configurations. Finite volume based numerical method has been used and k-ω SST based turbulence model is applied. The purpose of this work is to analyze the unsteady aerodynamic character of the flow and establish the validity and accuracy of the computational process. The validation has been done by comparing the RMS(root mean square) value of the computed instantaneous pressure at different time step against the experimental results. Apart from this, the PSD (Power Spectral Density) values for the pressure fluctuation are also calculated and compared with experiment. The effects of Mach number and geometry configuration on the location of the shockwave have also been considered and comparison results are presented in detail.
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Pages: 102-109
WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 9, 2014, Art. #9