This paper gives a review of the current state of the art for numerical simulations of char
conversion. In particular, it presents models that have been developed to describe the …

The interaction between the fluid and particles is the key to obtain accurate flow and heat
transfer rules. For a reactive particle, the Stefan flow will affect the mass, momentum, and …

Abstract Based on PR-DNS (Particle Resolve-Direct Numerical Simulation) method, the
gasification process of a single spherical char particle moving in high-temperature …

Multiphase flows with momentum, heat, and mass transfer exist widely in a variety of
industrial applications. With the rapid development of numerical algorithms and computer …

This paper presents a directional ghost-cell immersed boundary method for low Mach
number reacting flows with general boundary conditions, extending the approach described …

Supercritical water gasification is a promising technology in the context of carbon neutrality,
since it converts coal into hydrogen and easily-captured CO 2. A fully resolved direct …

In this work, a novel boundary condition-enforced immersed boundary method (IBM) for
simulating complex thermal–fluid–structure interaction (TFSI) problems with Robin boundary …

The world's largest Chemical Looping Combustion (CLC) demonstration unit is being built
close to the city of Chengdu in China. The design and construction of the unit, as well as the …

Interactions between a reacting particle and the surrounding fluid are complex due to the
interplay between flow dynamics, heat and mass transfer, and chemical reactions. In the …

Fully-resolved simulations of a burning char particle are performed to understand the effects
of chemical reactions on the drag force by using the ghost cell immersed boundary method …