Electrostatic fibrous air filters: a theoretical study II. Report for the period October 1979-October 1980
A computer code is described which determines filter efficiencies using particle trajectories. It uses the Kuwabara flow field and accounts for the three mechanical mechanisms of diffusion, interception, and inertial impaction. The effect of imposing all possible combinations of electrical capture mechanisms on the Kuwabara flow is also included. These mechanisms result from fiber and particle charge as well as fiber and particle polarization. An alternative means of computing the inertial impaction efficiency is also presented. It is based on a perturbation analysis of the dynamic equations of particle motion. A model of the dynamic effect of fiber charge buildup and bleedoff is proposed which shows some promise in the study of single fiber efficiency dynamics. Finally, two possible approaches to the study of flow problems related to fiber and particle dendrite interaction have been identified.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA); California Univ., Davis (USA). Dept. of Mathematics
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5314169
- Report Number(s):
- UCRL-15137-Pt.2; ON: DE82013834
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fibrous filter efficiency and pressure drop in the viscous-inertial transition flow regime.
An improved analytic solution for analysis of particle trajectories in fibrous, two-dimensional filters
Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
COMPUTER CODES
COMPUTERIZED SIMULATION
DATA
EFFICIENCY
ELECTRIC CHARGES
ELECTROSTATICS
FABRIC FILTERS
FIBERS
FILTERS
FLUID FLOW
GAS FLOW
INFORMATION
MATHEMATICAL MODELS
NUMERICAL DATA
OPERATION
PARTICLE SIZE
PARTICLES
SIMULATION
SIZE
THEORETICAL DATA