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- Title
FINDING OPTIMAL HYPERSONIC MISSILE SHAPE BASED ON FINITE ELEMENT ANALYSIS ADVANCED TECHNIQUE.
- Authors
CALIMANESCU, IOAN; STAN, LIVIU-CONSTANTIN
- Abstract
Applied aerodynamics has, historically, involved a very strong mix of theory and experiment. This is partly because experiments can be very costly and computations are rarely sufficiently sophisticated. This will continue to be the case. Computational Fluid Dynamics (CFD) is playing an ever increasing role in aerodynamic design for advanced missiles either for performance improvement of the existing system for new missions or for new concept development for future missions. A cost effective design process is to judiciously combine the wind tunnel tests and CFD studies that exploit the inherent strengths of each of these. Hypersonic missile flight is characterized by a high flight Mach number (usually greater than 5), thin shock layers and high viscous loads. The missile aerodynamic geometry has high impact on different missile systems such as control, propulsion, structure, and warhead. The objective of the current paper is to present a reliable Finite Element Analysis/CFD and Fluid Structure Interaction (FSI) advanced technique for obtaining hypersonic missile aerodynamics and use this technique for finding optimal hypersonic missile shape based on best structural behavior (the lowest von Mises stress will play the role of Objective Variable), and, secondly, based on the best aerodynamic behavior (the highest V∞ fluid velocity will play the role of Objective Variable).
- Subjects
AERODYNAMICS; COMPUTATIONAL complexity; COMPUTATIONAL fluid dynamics; GEOMETRY; FLUID dynamics
- Publication
Annals (Constanţa Maritime University), 2012, Vol 13, Issue 17, p91
- ISSN
2067-0427
- Publication type
Article