Appendix C - Scaling Relationships

The National Institute for Occupational Safety and Health (NIOSH)

D. Randolph Berry Kenneth R. Maser David A. Monaghan Adi R. Gurdar

Organization:: The National Institute for Occupational Safety and Health (NIOSH)
Pages:: 7
File Size:: 114 KB
Publication Date:: Jan 1, 1973

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APPENDIX C SCALING RELATIONSHIPS 1. Scaling Law for Fly Ash Crater Formation The scaling law derived for predicting crater diameters at different scales is developed below by considering the equation of motion of individual fly ash particles. It is assumed that the air drag on each particle is characterized by Stokes flow, and at the borehole - passage intersection the air velocity and the fly ash particle velocity are the same. The equations of motion for a fly ash particle are the following, (see Figure C-1).

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APA: D. Randolph Berry Kenneth R. Maser David A. Monaghan Adi R. Gurdar (1973) Appendix C - Scaling Relationships

MLA: D. Randolph Berry Kenneth R. Maser David A. Monaghan Adi R. Gurdar Appendix C - Scaling Relationships. The National Institute for Occupational Safety and Health (NIOSH), 1973.

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