Defence Science Journal | |
Flow Around a Conical Nose with Rounded Tail Projectile for Subsonic, Transonic, and Supersonic Flow Regimes : A Numerical Study | |
T. K. Biswal2  Amitesh Kumar1  H. S. Panda2  R. Appavuraj2  | |
[1] National Institute of Technology, Rourkela;Proof and Experimental Establishment, Chandipur | |
关键词: Projectile; drag; supersonic flow; numerical modelling; nose angle; | |
DOI : | |
学科分类:社会科学、人文和艺术(综合) | |
来源: Defence Scientific Information & Documentation Centre | |
【 摘 要 】
Flow around a conical nose with rounded tail projectile has been studied numerically for subsonic, transonic and supersonic flow regimes. The conic angle of the projectile is 10°. The inflow Mach numbers are 0.5, 0.9, and 1.5. Axisymmetric Euler’s equations are solved for predicting the drag coefficient. It has been observed that even for a subsonic flow regime, the Mach number distribution is not uniform owing to the non-symmetric shape of the projectile. The predicted drag coefficients for subsonic, transonic, and supersonic cases are 0.018, 0.089, and 0.395, respectively. It was observed that rounded tail is a better option than boat tail so far drag force is concerned. Science Journal, Vol. 64, No. 6, November 2014, pp.509-516, DOI: http://dx.doi.org/10.14429/dsj.64.8111
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010140596ZK.pdf | 1016KB | download |