03.1 - Aerodynamics – CFD Methods and Validation
EXERGY-BASED AERODYNAMIC CHARACTERISTICS ANALYSIS OF THE NASA COMMON RESEARCH MODEL AND BWB CONFIGURATION CIVIL AIRCRAFT
H.C. Yang¹, X.K. Ma¹, R.B. Zhu¹, K. You¹, Z.L. Chen¹; ¹Northwestern Polytechnical University, China
For transonic civil aircraft, the complex physical origins of drag pose challenges in clearly identifying drag sources and implementing effective drag reduction strategies during the design phase. An analysis method based on the exergy transport offers a clear characterization of drag sources and their streamwise conversion mechanisms. By linking the contributions of various exergy terms in the flow field to specific physical phenomena, this method provides deeper insights into the loss mechanisms that degrade system performance. In this study, the exergy-based method is applied to analyze the NASA Common Research Model and a Blended-Wing-Body (BWB) civil aircraft configuration. The predicted drag is compared with results obtained using the near-field and far-field methods, showing minimum and maximum deviations of 0.06% and 1%, respectively. Finally, a quantitative analysis of exergy outflows and anergy generation is conducted to clarify the origins of different drag components and their underlying physical conversion mechanisms.
DOI: 10.71945/icas2026_0373