Low-Mach number simulations of transcritical flows

Pasquale E. Lapenna, Rachele Lamioni, Pietro Paolo Ciottoli, Francesco Creta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

A numerical framework for the direct simulation, in the low-Mach number limit, of reacting and non-reacting transcritical flows is presented. The key feature are an efficient and detailed representation of the real fluid properties and an high-order spatial discretization. The latter is of fundamental importance to correctly resolve the largely non-linear behavior of the fluid in the proximity of the pseudo-boiling. The validity of the low-Mach number assumptions is assessed for a previously developed non-reacting DNS database of transcritical and supercritical mixing. Fully resolved DNS data employing high-fidelity thermodynamical models are also used to investigate the spectral characteristic as well as the differences between transcritical and supercritical jets.
Original languageEnglish (US)
Title of host publication2018 AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics (AIAA)
ISBN (Print)9781624105241
DOIs
StatePublished - Jan 7 2018
Externally publishedYes

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