[Eoas-seminar] Physical Oceanography faculty candidate #3 seminar Tuesday October 20 at 3pm Room 1044

[eoas-seminar at lists.fsu.edu]

For those of you who cannot attend in person, here is the zoom link:
https://fsu.zoom.us/j/99052991804<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Ffsu.zoom.us%2Fj%2F99052991804&data=05%7C02%7Ceoas-seminar%40lists.fsu.edu%7Cf0a3867621964b3e998408df2ea9ce9b%7Ca36450ebdb0642a78d1b026719f701e3%7C0%7C0%7C639280978989421824%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=9h0oesDiYVgx59kAFNxR9JZjzV2NXMs72sLKWhjTazM%3D&reserved=0>

On 10/18/2026 9:02 PM, Eric Chassignet wrote:
Please join us for a seminar at 3 pm in Room 1044 Tuesday October 20 by Dr. Nicolo Scapin, who is a candidate for our physical oceanography faculty position. The title and abstract of his talk are provided below.

Title: Small-scale processes at the ocean-atmosphere interface: from interfacial transport to wind-wave interactions

Abstract:
Flows involving droplets, bubbles, and deformable free surfaces play a central role in exchanges of mass, momentum, and energy between the ocean and the atmosphere. Although these flows arise across a wide range of scales, they share three fundamental features: they are multiphase, involving more than one fluid phase; multiphysics, involving coupled phenomena such as heat and mass transfer; and multiscale, involving a broad range of interacting spatial and temporal scales. In this talk, I will show how high-fidelity numerical simulations can be used to study these processes and connect small-scale fluid mechanics to larger-scale ocean-atmosphere exchanges. I will first focus on evaporating droplets in turbulence and present an efficient numerical algorithm that overcomes two major challenges in interface-resolved simulations with phase change: the discontinuity of the velocity field across the two-phase interface and the intrinsic local volume variations induced by evaporation. I will then turn to multiscale processes at the ocean-atmosphere interface, focusing on wind-forced breaking waves in a regime relevant to tropical cyclones, and show how wave breaking strongly influences the turbulent airflow, modifies the momentum transfer and drag coefficient, and alters the underwater energy dissipation profile. I will conclude by outlining future research directions aimed at addressing the long-standing question of how sea spray influences air-sea fluxes over complex wave fields, quantifying bubble-mediated transport, and developing data-driven, physically constrained parameterizations of small-scale air-sea processes for ocean and climate models.



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Eric Chassignet
Professor and Director
Center for Ocean-Atmospheric Prediction Studies (COAPS)
Florida State University
2000 Levy Avenue, Building A, Suite 292
P.O. Box 3062741
Tallahassee, FL  32306-2741

Office : (1) 850-645-7288
Cell   : (1) 850-524-0033 (urgent matters only)
E-mail : echassignet at fsu.edu<mailto:echassignet at fsu.edu>
http://www.coaps.fsu.edu<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.coaps.fsu.edu%2F&data=05%7C02%7Ceoas-seminar%40lists.fsu.edu%7Cf0a3867621964b3e998408df2ea9ce9b%7Ca36450ebdb0642a78d1b026719f701e3%7C0%7C0%7C639280978989778560%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=OAzLA8ZqJcgxNhhOss%2F4YvLHuCQyDs1S1WySkZklskg%3D&reserved=0>

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Eric Chassignet
Professor and Director
Center for Ocean-Atmospheric Prediction Studies (COAPS)
Florida State University
2000 Levy Avenue, Building A, Suite 292
P.O. Box 3062741
Tallahassee, FL  32306-2741

Office : (1) 850-645-7288
Cell   : (1) 850-524-0033 (urgent matters only)
E-mail : echassignet at fsu.edu<mailto:echassignet at fsu.edu>
http://www.coaps.fsu.edu<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.coaps.fsu.edu%2F&data=05%7C02%7Ceoas-seminar%40lists.fsu.edu%7Cf0a3867621964b3e998408df2ea9ce9b%7Ca36450ebdb0642a78d1b026719f701e3%7C0%7C0%7C639280978989812991%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=ABz6%2B3lAl8y%2BWOVarbI0NYGo%2FaYxhWpSVJ3fAOMZFLo%3D&reserved=0>


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