SNIC
SUPR
SNIC SUPR
Direct numerical simulation study of reaction front propagation in homogenous turbulence
Dnr:

SNIC 2018/3-298

Type:

SNAC Medium

Principal Investigator:

Rixin Yu

Affiliation:

Lunds universitet

Start Date:

2018-07-01

End Date:

2019-07-01

Primary Classification:

20306: Fluid Mechanics and Acoustics

Webpage:

Allocation

Abstract

The proposal study aims to improve our fundamental understanding of turbulent premixed combustion. We consider the basic problem of a statistically planar flame front propagating on a homogenous/isotropic turbulence in a periodic rectangular domain. A series direct numerical simulations(DNS) studies will be performed with a step-by-step complicated flame models, starting with the simplest model of flame being an infinitely-thin interface propagating with a fixed speed relative to the flow and with a constant density and viscosity across the flame front, then allowing the flame front to have finite-thickness, then allowing density variation and non-unity Lewis number diffusion, and finally enabling complex fuel chemistry.