A Direct Numerical Simulation (DNS) investigates transonic flow over a NACA0012 airfoil coupled with single-DOF structural dynamics. Analysis is performed for angle of attack ({\alpha}) 8{\deg} with varying reduced velocity (U*) from 2 to 8, reduced mass (m*) 5.0, Reynolds number (Re_\infty) of 3 \times 10^6, and Mach...
Experimental data at flight-relevant Reynolds numbers remain scarce for publicly available transport aircraft standard models. This study analyses Reynolds number effects on the CHN-T1 large-aspect-ratio configuration using measurements from the cryogenic European Transonic Wind Tunnel, covering Mach 0.20–0.90 and unit...
Dawei Liu, Xin Peng, Qiang-Qiang Li et al.· Aerospace· 0 citations
This study examines the aerodynamic efficacy of the S809 airfoil at six angles of attack: ?14.23°, ?5.15°, 0°, 5.13°, 9.22°, and 10.21°. It uses steady two-dimensional RANS with two closures: k–? SST (Menter) and k–? Standard. It also checks the results against wind-tunnel data from NREL. We digitized experimental pres...
Abobakr Al-ttowi, A. Mohammed· International Journal of Int...· 0 citations
The aerodynamic performance of conventional (rounded leading-edge) and reversed (sharp leading-edge) airfoils is investigated in the low Reynolds number regime. Computations are performed in the range Re ∈ [1x108, 8x104]. The results show significant differences in the flow structures and the aerodynamic characteristic...
T. Grishma, Kavya Nagaraj, M. Sivapragasam· Journal of aerospace science...· 0 citations
We use direct numerical simulations to study the turbulent transonic flow over a supercritical airfoil, spanning the transition from stable conditions to fully developed buffet at chord-based Reynolds numbers of $3\times10^5$ and $6\times10^5$. The Reynolds number determines the incoming boundary-layer state, thereby a...
G. Soldati, Hang Song, S. Pirozzoli et al.· 0 citations
Accurately predicting the aerodynamic response of supersonic projectiles under the coupled effects of high-speed spin and non-zero angles of attack (AoA) is critical for trajectory optimisation and submunition dispensing. This study systematically investigates the aerodynamic coupling effects of a 12.7 mm supersonic...
Bo Hao, Zhi-Tao Dong, Li Zhang et al.· Proceedings of the Instituti...· 0 citations
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