### Skapa referens, olika format (klipp och klistra)

**Harvard**

Bergenblock, T., Leckner, B., Onofri, F., Occelli, R. och Tadrist, L. (2006) *Averaging of particle data from phase Doppler*.

** BibTeX **

@article{

Bergenblock2006,

author={Bergenblock, Tobias and Leckner, Bo and Onofri, Fabrice and Occelli, René and Tadrist, Lounès},

title={Averaging of particle data from phase Doppler},

journal={International Journal of Multiphase Flow},

volume={32},

pages={248-268},

abstract={A novel post-processing algorithm is proposed to correct statistical bias observed in the treatment of time series
obtained by a phase Doppler anemometer (PDA) at flow locations with variable particle velocity and concentration.
Extensive properties of each validated particle are weighted with their inverse measuring (validation) volume to account
for the procedure of particle sampling and fluctuations in the particle concentration. To compensate for the short characteristic
length of the validation volume, the properties of particles are expressed by properties of fields of particle groups,
using a local averaging time. A window shift and a decorrelation scheme are applied on the fields to increase their frequency
resolution. This algorithm has been tested on numerical time series, provided by an Eulerian/Lagrangian code representing
a gas/solids flow past a bluff body. Moments and spectral estimates of concentration and velocity of particle
groups were successfully validated by the numerical simulation using the PDA data algorithm and control volume averaging.
The control volume was much larger than the PDA validation volume, but the centre positions of the two volumes
were identical.},

year={2006},

keywords={Phase Doppler anemometry; Two-phase flow; Particle groups; Eulerian/Lagrangian simulation; Bluff body},

}

** RefWorks **

RT Journal Article

SR Print

ID 16817

A1 Bergenblock, Tobias

A1 Leckner, Bo

A1 Onofri, Fabrice

A1 Occelli, René

A1 Tadrist, Lounès

T1 Averaging of particle data from phase Doppler

YR 2006

JF International Journal of Multiphase Flow

VO 32

SP 248

OP 268

AB A novel post-processing algorithm is proposed to correct statistical bias observed in the treatment of time series
obtained by a phase Doppler anemometer (PDA) at flow locations with variable particle velocity and concentration.
Extensive properties of each validated particle are weighted with their inverse measuring (validation) volume to account
for the procedure of particle sampling and fluctuations in the particle concentration. To compensate for the short characteristic
length of the validation volume, the properties of particles are expressed by properties of fields of particle groups,
using a local averaging time. A window shift and a decorrelation scheme are applied on the fields to increase their frequency
resolution. This algorithm has been tested on numerical time series, provided by an Eulerian/Lagrangian code representing
a gas/solids flow past a bluff body. Moments and spectral estimates of concentration and velocity of particle
groups were successfully validated by the numerical simulation using the PDA data algorithm and control volume averaging.
The control volume was much larger than the PDA validation volume, but the centre positions of the two volumes
were identical.

LA eng

OL 30