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Microparticle dynamics in electrostatic and flow fields / Sheng Chen.

9789811608438 electronic book
9811608431 electronic book
9789811608421
9811608423

Singapore : Springer, [2023]

English

1 online resource (xix, 138 pages) : illustrations (some color).

10.1007/978-981-16-0843-8 doi

QC571 .C44 2023

537/.2

This thesis proposes new approaches for modelling contacting interactions and electrostatic interactions between microparticles in the framework of the discrete element method and presents a systematic investigation on the agglomeration, migration and deposition of microparticles in presence of electrostatic and flow fields. It reports an exponential-form scaling for the size distribution of early-stage agglomerates in homogeneous isotropic turbulence and formulate the agglomeration and deagglomeration rates. The evolution of spherical clouds of charged particles that migrate under the action of an external electrostatic field is then investigated. Scaling laws of cloud radius and particle number density are obtained by solving a continuum convection equation. Finally, it investigates the deposition of charged particles on a flat plane and fibers. A dimensionless adhesion parameter is constructed to predict the structure of deposits. The temporal evolution of the deposit structure, particle capture efficiency, and the pressure drop are displayed with varying values of Coulomb repulsion and adhesion magnitudes.

"Doctoral thesis accepted by Tsinghua University, Beijing, China."

Includes bibliographical references.

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Description based on online resource; title from digital title page (viewed on May 25, 2023).

Springer theses.

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