Abstract
When a shock wave arrives at the open end of a tube, an impulsive wave is discharged from the tube exit and causes serious noise and vibration problems In the current study, the effect of the cross-sectional area of a circular tube on the impulsive wave is investigated using computational methods Harten-Yee's TVD scheme was employed to solve axisymmetric, unsteady, compressible Euler equations. With a change In the cross-sectional area of the tube, the Mach number of an incident shock wave is vaned between 1.01 and 1 50 Thebr/ results obtained show that the magnitude of the Impulsive wave strongly depends upon the Mach number of the incident shock wave and the cross-sectional area of the tube. It is also found that for a given cross-sectional area of the tube, the impulse wave has strong directivity to the tube axisbr/
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