S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
Multipoint Inverse Design Method for Transonic Wings
- Kim, Hyoung-Jin; Kim, Chongam; Rho, Oh-Hyun
- Issue Date
- Journal of Aircraft, vol. 36, no. 6, 1999, pp. 941-947
- A new multipoint inverse design method to improve aerodynamic performance of transonic transport wings at off-design conditions is demonstrated. We minimized weighted averages of the residuals that are differences between computed and target pressures at two design points. Target pressure distributions are optimized using a genetic algorithm. It was found that characteristics of single-point design wings were transferred to dual-point design wings proportionallyto weighting factors. Through the dual-point design procedure, off-design performance of a single-point design wing is improved while preserving good performance at the primary design point. The present dual-pointdesign procedure requires about 12 times the computationalcost of a ow solver and is, therefore, very ef cient for the multipoint design of transonic wings.
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