Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2008-03-20
2011-11-22
Kim, Robert (Department: 2881)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S001000
Reexamination Certificate
active
08065119
ABSTRACT:
A computerized method and system for designing an aerodynamic focusing lens stack, using input from a designer related to, for example, particle size range to be considered, characteristics of the gas to be flowed through the system, the upstream temperature and pressure at the top of a first focusing lens, the flow rate through the aerodynamic focusing lens stack equivalent at atmosphere pressure; and a Stokes number range. Based on the design parameters, the method and system determines the total number of focusing lenses and their respective orifice diameters required to focus the particle size range to be considered, by first calculating for the orifice diameter of the first focusing lens in the Stokes formula, and then using that value to determine, in iterative fashion, intermediate flow values which are themselves used to determine the orifice diameters of each succeeding focusing lens in the stack design, with the results being output to a designer. In addition, the Reynolds numbers associated with each focusing lens as well as exit nozzle size may also be determined to enhance the stack design.
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Birch Jim
Coffee Keith
Gard Eric
Riot Vincent
Tobias Herbert
Kim Robert
Lawrence Livermore National Security LLC
Smyth Andrew
Tak James S.
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