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8th Thermal and Fluids Engineering Conference (TFEC)
March, 26-29, 2023, College Park, MD, USA

TRANSIENT SIMULATION OF GLAZE ICE ACCRETION ON AN AIRCRAFT WING: A QUASI-STEADY APPROACH

Get access (open in a dialog) pages 525-528
DOI: 10.1615/TFEC2023.cmd.046425

Abstract

A full time-dependent solution of the governing equations for glaze and mixed ice accretion problems will be costly in terms of computational time. Using a quasi-steady state approach to solve the problem will help achieve virtually the same accuracy without having to endure the computational time penalty. A valid quasi-steady simulation needs to employ a time step size that is small enough to be able to reproduce the full time-dependent solution to within a very small error band. We have found that both the 1s and the 0.1s time steps produce virtually identical results. Analysis reveals a 12% or 8.5% increase in the maximum droplet collection efficiency depending on whether the value of the liquid water content has increased from 0.5 g/m3 to 1 g/m3, or the value of the free stream velocity has increased from 75 m/s to 150 m/s, respectively.