K. S. Kumar - Computational and Theoretical Fluid Dynamics Division, Council of Scientific and Industrial Research, National Aerospace Laboratories, Bangalore – ۵۶۰۰۱۷, India
S. V. Sajjan - Computational and Theoretical Fluid Dynamics Division, Council of Scientific and Industrial Research, National Aerospace Laboratories, Bangalore – ۵۶۰۰۱۷, India

Unsteady Reynolds-averaged Navier-Stokes (RANS) computations are presented for subsonic and transonic flow past a plunging NACA ۶۴A۰۱۰ aerofoil. The Implicit RANS solver used for obtaining the time-accurate solution is based on finite volume nodal point spatial discretization scheme with dual time stepping. Results for the subsonic and transonic cases compare well with the experimental data, thus demonstrating the capability of the solver to provide useful unsteady pressure data for aeroelastic analysis.

RANS solver, Viscous flow, Implicit method, Heaving aerofoil, Nodal point scheme