Presentation Title

Design and Analysis of Sounder Fin Performance for a High-Powered Rocket

Faculty Mentor

Sohail H. Zaidi

Start Date

17-11-2018 8:30 AM

End Date

17-11-2018 10:30 AM

Location

HARBESON 7

Session

POSTER 1

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Fin design and associated aerodynamics plays a vital role in evaluation of the overall flight performance of a rocket. The Aerobee 150A rocket’s original trapezoidal fin design did not provide a proper static margin and correcting that issue by adding weight in the nose section deteriorated the overall speed and altitude performance of the rocket. Sounder fins have been developed to enhance the speed performance of the Rocket. Trial sounder fins were developed, installed on a rocket and launched at Fresno, California. The associated rocket broke Mach speed and achieved an altitude enhancement of 150ft, a 3% improvement compared to the original Aerobee 150A design. For this experiment, the sounder fin’s design has been further improved upon by changing the material and the cross-sectional design and is currently being machined at San Jose State University. Initial simulations on RockSim have shown that the optimized sounder concept can potentially provide a 7% speed boost and a 4% altitude boost compared to the original sounder fin design. The rocket’s scheduled flight on October 20th will provide new valuable data and this information obtained will be analyzed by comparison to the original design. A parametric study between the trapezoidal fins and the two sounder fins with both theoretical and experimental data will be presented in this paper. Preliminary results on Ansys Fluent for optimization of fins will also be included.

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Nov 17th, 8:30 AM Nov 17th, 10:30 AM

Design and Analysis of Sounder Fin Performance for a High-Powered Rocket

HARBESON 7

Fin design and associated aerodynamics plays a vital role in evaluation of the overall flight performance of a rocket. The Aerobee 150A rocket’s original trapezoidal fin design did not provide a proper static margin and correcting that issue by adding weight in the nose section deteriorated the overall speed and altitude performance of the rocket. Sounder fins have been developed to enhance the speed performance of the Rocket. Trial sounder fins were developed, installed on a rocket and launched at Fresno, California. The associated rocket broke Mach speed and achieved an altitude enhancement of 150ft, a 3% improvement compared to the original Aerobee 150A design. For this experiment, the sounder fin’s design has been further improved upon by changing the material and the cross-sectional design and is currently being machined at San Jose State University. Initial simulations on RockSim have shown that the optimized sounder concept can potentially provide a 7% speed boost and a 4% altitude boost compared to the original sounder fin design. The rocket’s scheduled flight on October 20th will provide new valuable data and this information obtained will be analyzed by comparison to the original design. A parametric study between the trapezoidal fins and the two sounder fins with both theoretical and experimental data will be presented in this paper. Preliminary results on Ansys Fluent for optimization of fins will also be included.