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http://dx.doi.org/10.5139/JKSAS.2012.40.5.395

Prediction of Pitch and Roll Dynamic Derivatives for Flight Vehicle using CFD  

Lee, Hyung-Ro (인하대학교 항공우주공학과)
Gong, Hyo-Joon (인하대학교 항공우주공학과)
Kim, Beom-Soo (인하대학교 항공.조선.산업공학부)
Lee, Seung-Soo (인하대학교 항공.조선.산업공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.40, no.5, 2012 , pp. 395-404 More about this Journal
Abstract
This paper presents computations of the dynamic derivatives of three dimensional flight vehicle configurations using CFD. The pitch dynamic derivatives are computed from the pitch sinusoidal motion, while the roll damping is computed based on steady state calculation using a non-inertial frame method. The Basic Finner and the SDM(Standard Dynamic Model) are chosen for the benchmark tests against other numerical and experimental results. For the flow calculations, a 3-D Euler solver that can be run both on the non-inertial frame and on the inertial frame is developed. A dual-time stepping method is applied for the unsteady time accurate simulations. A good agreement of pitch-roll dynamic derivatives with previously published numerical results and the experimental results is observed.
Keywords
Dynamic derivatives; Pitch sinusoidal motion; CFD; Non-inertial frame method; Basic Finner; SDM(Standard Dynamic Model);
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