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The Mathematics of Blunt Body Sampling

  • Book
  • © 1988

Overview

Authors:
  1. Sarah Jane Dunnett

    1. Dept. of Applied Mathematical Studies, The University of Leeds, Leeds, Great Britain

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  2. Derek Binns Ingham

    1. Dept. of Applied Mathematical Studies, The University of Leeds, Leeds, Great Britain

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    You can also search for this author in PubMed   Google Scholar

Part of the book series: Lecture Notes in Engineering (LNENG, volume 38)

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Table of contents (11 chapters)

  1. Front Matter

    Pages I-VIII
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  2. General Introduction

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 1-10

  3. A Review of Past Work on Particle Sampling

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 11-46

  4. A Comparison of Analytically Derived Expressions in Blunt Body Sampling with those Obtained Empirically

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 47-65

  5. A Boundary Integral Equation Analysis of Blunt Body Sampling in Two Dimensions

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 67-87

  6. Mathematical Investigation of the Sampling Efficiency of a Two-Dimensional Blunt Sampler

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 89-99

  7. The Effects of the Particle Reynolds Number on the Aspiration of Particles Into a Blunt Sampler

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 101-115

  8. The Aspiration of Non-Spherical Particles Into a Bulky Sampling Head

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 117-137

  9. An Empirical Model for the Aspiration Efficiencies of Blunt Aerosol Samplers Orientated at an Angle to the Oncoming Flow

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 139-162

  10. Use of the Boundary Element Method for Modelling Three-Dimensional Samplers

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 163-186

  11. The Human Head as a Blunt Aerosol Sampler

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 187-215

  12. Conclusions

    • Sarah Jane Dunnett, Derek Binns Ingham
    Pages 217-222

  13. Back Matter

    Pages 223-232
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Keywords

About this book

Particle samplers are widely used in workplaces in order to determine the concentration of airborne particles in the atmosphere. They generally operate by drawing air, with the aid of a pump, through one or more orifices in the sampler body and housed within the sampler is a filter through which the air is subsequently drawn. The airborne particles are collected on the filter and their concentration is determined. Various samplers have been designed for this purpose including "static" samplers, which are located in a fixed position in a working environment and determine the dust concentration averaged over a prescribed period of time at that one point, and "personal" samplers which are mounted on a working person near to the breathing zone. The ORB sampler, a static sampler designed by Ogden and Birkett (1978) to have approximately the same entry efficiency, for particles with aerodynamical diameter up to at least 25~m, as a human head equally exposed to all wind directions for wind speeds between 0 and 2. 75m1s, is shown in Fig. l. l and examples of personal samplers are shown in Fig. 1. 2a, b and c and represent a single 4mm hole sampler, a seven hole sampler and a 25mm open face filter holder respectively. These three samplers are some of the most commonly used personal samplers for sampling the total airborne concentrations of workplace dusts in Britain.

Authors and Affiliations

  • Dept. of Applied Mathematical Studies, The University of Leeds, Leeds, Great Britain

    Sarah Jane Dunnett, Derek Binns Ingham

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