What is it about?
Surface morphing is an efficient way to increase the aerodynamic performance of aircrafts. In this paper, we choose a representative morphing structure, an extending wall, and particularly focus on its impact on the laminar-turbulent transition. Two distinguished regimes are studied theoretically.
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Why is it important?
We quantify the two regimes of the morphing-wall effects on transition by two system parameters. This is rather important because (1) these system parameters reavel the intrinsic physics of the interaction ofthe morphing wall with the oncoming perturbations, and (2) we are able to construct a transition-prediction approach based on these system parameters.
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This page is a summary of: Impact of a continuously extending wall on laminar-turbulent transition in subsonic boundary layers, Physics of Fluids, August 2022, American Institute of Physics,
DOI: 10.1063/5.0106736.
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