Record Display for the EPA National Library Catalog


Main Title Fiber Deposition Along Airway Walls: Effects of Fiber Cross-Section on Rotational Interception.
Author Johnson, D. L. ; Martonen., T. B. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. Environmental Toxicology Div. ;Oklahoma Univ. Health Sciences Center, Oklahoma City. Dept. of Occupational and Environmental Health.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-94/213;
Stock Number PB94-163920
Additional Subjects Fibers ; Mathematical models ; Equations of motion ; Deposition ; Air pollution effects(Humans) ; Aerosols ; Ellipsoids ; Shear rate ; Rotation ; Aerodynamic characteristics ; Particle shape ; Health hazards ; Ceramic fibers ; Glass fibers ; Revolution ; Risk assessment ; Industrial hygiene ; Occupational exposure ; Lung ; Cross sections ; Asbestos ; Reprint ; PER(Prolate ellipsoids of revolution) ; Triaxial ellipsoids ; PBPK Modeling ; Inhaled particles
Library Call Number Additional Info Location Last
NTIS  PB94-163920 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 14p
Jeffery's equations of motion for ellipsoidal bodies in shear flow are applied to triaxial ellipsoids using numerical integration and modeling. The rotational behaviors of prolate triaxial ellipsoids are compared with ellipsoids of revolution, and the resultant motions are demonstrated to differ significantly. The effects of initial orientations on inhaled fiber motion in human airways are examined, and deposition efficiencies along airway walls are computed. (Copyright (c) 1993 Pergamon Press Ltd.)