Navier-Stokes analysis of a High Wing Transport high-lift configuration with externally blown flaps

TLDR

Three-dimensional Navier–Stokes CFD simulations using the OVERFLOW solver were compared with high‑Reynolds test data from the NASA Ames 12‑foot PWT, and additional studies on nacelle strake effectiveness and wake vortices were conducted. The analysis revealed insights into the HWT high‑lift configuration with and without externally blown flaps, highlighting technical capabilities and limitations of the computational method.

Abstract

Insights and lessons learned from the aerodynamic analysis of the High Wing Transport (HWT) high-lift configuration are presented. Three-dimensional Navier-Stokes CFD simulations using the OVERFLOW flow solver are compared with high Reynolds test data obtained in the NASA Ames 12 Foot Pressure Wind Tunnel (PWT) facility. Computational analysis of the baseline HWT high-lift configuration with and without Externally Blown Flap (EBF) jet effects is highlighted. Several additional aerodynamic investigations, such as nacelle strake effectiveness and wake vortex studies, are presented. Technical capabilities and shortcomings of the computational method are discussed and summarized.