Induced Drag Characteristics Based on Wake Surface Integration for Wing-In-Ground Effect

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概要

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• The present paper predicts the induced drag in the ground effect using wake surface integration. The total drag can be decomposed into physical drag components such as wave, profile, and induced drag. First, we confirmed that applying wake surface integration to cases of ground effect is theoretically valid as long as a moving boundary condition is implemented for the ground surface. Second, total drag comparison between body surface integration and wake surface integration is performed to numerically identify the disparity. Last, the induced drag component is extracted at various heights. In addition, endplates are mounted on wing tips to determine their impact on the ground effect. This study uses the Navier-Stokes solver for aerodynamic analysis, and a Clark-Y wing with DHMTU concept is generated. As a result, the wake surface integration satisfactorily shows the characteristics of the induced drag in the ground effect with the Clark-Y wing and wing-endplate combinations.

著者

• SHIN Seung-Yun

  Korean Air Research and Development Center

• WHANG Kyung-Hyun

  Korean Institute of Machinery and Material

• KIM Kyun-Seok

  Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology

• KWON Jang-Hyuk

  Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology

関連論文

• Evaluation of Longitudinal Stability Characteristics Based on Irodov’s Criteria for Wing-In-Ground Effect
• Induced Drag Characteristics Based on Wake Surface Integration for Wing-In-Ground Effect
• Induced Drag Characteristics Based on Wake Surface Integration for Wing-In-Ground Effect
• Evaluation of Longitudinal Stability Characteristics Based on Irodov's Criteria for Wing-In-Ground Effect

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