EAA Working Groups

WG 5: Basic Aerosol Processes (BAP)


Chair: Jonas Elm 

The lack of fundamental understanding of the processes that govern aerosol formation and growth causes tremendous uncertainties in the predictions of macroscopic aerosol behavior, such as nanoparticle characteristics, optical properties, aerosol-cloud interactions, and the effect of atmospheric aerosols on global climate estimations. These uncertainties in aerosol chemistry and dynamics may be addressed by modelling and/or simulations at various length and time scales from the atomistic (quantum chemistry, molecular dynamics) all the way up to the continuum level (computational fluid dynamics, population balance equations). The basic aerosol processes working group is targeting these processes as well as focusing on a broader fundamental understanding of aerosol properties and dynamics that would have impact in other areas such as aerosol technology.


The topic 5 work group comprises three main subjects, that all target basic aerosol processes (aerosol chemistry, modelling and physics).

Aerosol chemistry: Fundamental investigations in aerosol chemistry (theoretical and experimental). Chamber and flowtube studies looking into oxidation processes of both anthropogenic and biogenic volatile organic compounds. Also includes gas-phase kinetic studies of aerosol precursors.


Aerosol modelling: All aspects of the numerical modelling of basic aerosol processes, including regional and global transport models, numerical computation of particle transport in fluids, quantum chemical calculations and molecular dynamics simulations.


Aerosol physics: Fundamental investigations of aerosol dynamics, aerosol filtration, interactions between aerosols and surfaces, nucleation and growth, agglomeration and fragmentation (theoretical and experimental). Also includes studies of fundamental material properties of aerosols such as electromagnetic and optical behaviour.


The BAP working group welcome all contributions to basic aerosol science that relate to aerosol physics and chemistry, modelling, simulations and fundamental research into aerosol and material properties.  


Subtopics (responsible person)

  1. Smog chamber and flowtube simulations and experiments (Jonas Elm)

  2. Quantum chemical calculation of aerosol formation and gas-phase kinetics (Jonas Elm)

  3. Molecular dynamics of aerosol formation and properties (Ian Ford/Eirini Goudeli)

  4. Nucleation and growth (Ian Ford)

  5. Aerosol condensation, coagulation, agglomeration, fragmentation and transport properties (Eirini Goudeli/Yannis Drossinos)

  6. Interaction between aerosols and surfaces, molecular dynamics of nanocomposites (Eirini Goudeli)

  7. Aerosol optical properties (Yannis Drossinos)

  8. Aerosol filtration 

WG members

Topics of main interest
(chair) Jonas Elm
Quantum chemistry, cluster formation, atmospheric chemistry.
Eirini Goudeli
Aerosol dynamics, nanoparticle technology, soot formation, multiscale design of aerosol reactors.
Ian Ford
Nucleation, aerosol physics, nonequilibrium thermodynamics.
Yannis Drossinos
Fundamental aerosol processes.

Überschrift 1