03.1 - Aerodynamics – CFD Methods and Validation
EFFECTIVENESS OF CFD FOR AIRCRAFT DESIGN: STATUS AND PROSPECTS
P. Raj, Virginia Tech, United States
A fully effective CFD that delivers credible aerodynamic data on time and on budget is crucial to developing quality affordable aircraft. From five decades of experience, author asserts that RANS cannot produce credible data due to turbulence [and transition] modeling deficiencies anytime soon--if ever. Long-term (DNS), mid-term (LES), and near-term (TicTac) options are discussed in the paper.