This review describes a range of natural processes leading to the formation of turbulent
buoyant plumes, largely relating to volcanic processes, in which there are localized, intense …

Modelling has been used in the study of volcanic systems for more than 100 years, building
upon the approach first applied by Sir James Hall in 1815. Informed by observations of …

Estimates of volcanic source mass flux, currently deduced from observations of plume
height, are crucial for ash dispersion models for aviation and population hazard. This study …

This study compares and evaluates one-dimensional (1D) and three-dimensional (3D)
numerical models of volcanic eruption columns in a set of different inter-comparison …

Energy-consistent entrainment relations for jets and plumes Page 1 J. Fluid Mech. (2015),
vol. 782, pp. 333–355. c Cambridge University Press 2015 This is an Open Access article …

The description of entrainment in turbulent free jets is at the heart of physical models of
some major flows in environmental science, from volcanic plumes to the dispersal of …

We examine the dynamics of turbulent lazy plumes rising from horizontal area sources and
from vertically distributed line sources into a quiescent environment of uniform density. First …

We consider the scaling of the mass flux and entrainment velocity across the turbulent/non-
turbulent interface (TNTI) in the far field of an axisymmetric jet at high Reynolds number …

We present a direct numerical simulation (DNS) data set for a statistically axisymmetric
turbulent jet, plume, and forced plume in a domain of size 40 r 0× 40 r 0× 60 r 0, where r 0 is …

The dynamics of eruption clouds in explosive volcanic eruptions are governed by
entrainment of ambient air into eruption clouds by turbulent mixing. We develop a new …