The kinematics of a fully developed passive scalar is modelled using the hierarchical
random additive process (HRAP) formalism. Here,'a fully developed passive scalar'refers to …

This paper investigates air pollution dispersion and exposure time around a building in a
turbulent flow via tracer gas techniques. In the wind tunnel experiments, the tracer gas as the …

Simultaneous measurements of streamwise velocity () and concentration () for a horizontal
plume released at eight different vertical locations within a turbulent boundary layer are …

We propose a new experimental protocol to investigate the atmospheric dispersion of a
dense gas in wind-tunnel experiments. Simultaneous measurements of concentration and …

This study presents a novel experimental setup designed to release a buoyant scalar plume
and measure concentration and velocity simultaneously. Tracer gas is released from a point …

Measurements of concentration fluctuations in a passive scalar plume released within a
turbulent boundary layer are utilised to ascertain the scaling of concentration spectra. It is …

The spatial organization of a passive scalar plume originating from a point source in a
boundary layer is studied to understand its meandering characteristics. We focus shortly …

Measurements of velocity and concentration fluctuations for a horizontal plume released at
eight different heights within a turbulent boundary layer (TBL) are discussed in this paper …

Accurate calibration procedure is essential to obtain reliable concentration measurements
using ionisation-based sensors. Existing methods assume linear behaviour of ionisation …

The Reynolds transport equation for the instantaneous concentration field, C= C+ c (where
C is mean and c is fluctuation), of a plume in a turbulent boundary layer, is not closed …