Large-Eddy Simulation of Titan's near-surface atmosphere: Convective turbulence and flow over dunes with application to Huygens and Dragonfly

Adam Lavely, Ralph Lorenz, Sven Schmitz

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The planetary boundary layer (PBL) on Titan is modeled using large-eddy simulation (LES) to quantify the turbulence structures and statistics in the atmospheric surface layer. The results at three different stability states over a flat surface indicate similar velocity fluctuations to the limited observations taken by the Huygens probe during descent, and are much weaker than those characteristic of the convective PBL on Earth and Mars. Additionally, turbulence statistics are calculated using topographical configurations representative of Titan's dunes, thereby quantifying the acceleration of the mean flow over the dune crest. The resolution available with the LES is relevant for future science missions to Titan, including the Dragonfly rotorcraft lander recently selected for the NASA New Frontiers program.

Original languageEnglish (US)
Article number114229
JournalIcarus
Volume357
DOIs
StatePublished - Mar 15 2021

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint

Dive into the research topics of 'Large-Eddy Simulation of Titan's near-surface atmosphere: Convective turbulence and flow over dunes with application to Huygens and Dragonfly'. Together they form a unique fingerprint.

Cite this