Work

Large-eddy simulations of conjugate heat transfer in boundary layers over laser-scanned ice roughness

Year: 2025

Type: article

Abstract: Accurate heat transfer prediction on rough surfaces is critical for ice accretion prediction and aviation safety. Using high-fidelity simulations of conjugate heat transfer, we resolve heat transport in both the fluid and a low-conductivity solid featuring laser-scanned ice roughness. Contrary to the behavior of isothermal surfaces, the low thermal conductivity of the solid causes roughness crests to become the coolest points, sometimes even drawing heat from the air. This work highlights the necessity of including solid conduction effects in next-generation icing models.

Source: Physical Review Fluids

DOI: 10.1103/fkg4-y3vf

Authors: F. Zabaleta, B. Bornhoft, S. S. Jain, S. T. Bose, P. Moin

Institutions: Stanford University, Cadence Design Systems (United States), Georgia Institute of Technology

Language: English

Topic: Icing and De-icing Technologies

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Aeronautics and Space Administration, Office of Science

Award: G121915436