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Show requires advanced numerical methods to achieve accurate solutions in feasible computational times. We have shown the multigrid method to be capable of improving perforn1ance by two orders of magnitude over more standard approaches . 7 A cknoV\TI edgments We wish to thank Consolidation Coal Corporation and Combustion Engineering for providing the experimental data used in this paper. Additional support for this research was provided by the following organizations: Advanced Fuel Resources, Inc., Babcock and \ViIcox, Combustion Engineering, Inc., Consolidation Coal Corporation, Electric Power Research Institute, Empire State Electric Energy Research Co., Foster Wheeler Development Co., Tennessee Valley Authority, U.S. Department of Energy - METC, U.S. Department of Energy - PETC, and Utah Power and Light Co. References [1] \\. A. Fiveland and R. A. \\essel. "Numerical Model for Predicting Performance of Three-Dimensional Pulverized-Fuel Fired Furnaces". presented at the Jt. AIAA/ ASME Thermophysics and Heat Transfer Conference, Boston Massachusetts, June 2-4, 1986. [2] G. F. Robinson. A three-dimensional anal) tical model of a large tangentiallyfired furnace. J. Institute En ergy, 116( 116), 1985. [3] R. K. Boyd, and J. H. Kent. Three-Dimensional Furnace Computer ~10delling. Twenty-First International Symposium on Combustion, The Combustion Institute, (265), 1986. [4] F. C. Lockwood, C. Papadopoulos, and A. S. Abbas. Computation of Power Station Combustors. in Calculations of Turbulent ReactiVE Flo11's, edited by R. M. C. So, J. H. \\ hitelaw~ and H."C. Mongia, AMD-81, ASME, 19 '"1 6. [5] L. D. Smoot and P. J. Srillth Coal Combustion and Gasification. Plenum (1985). [6] P. A. Gillis and P. J. Smith. "Three-Dimensional Fluid Dynamics ~10deling in Furnace Geometries". presented at Spring Meeting of \~ estern States Section, The Combust.ion Institute in Salt Lake City, Utah, ~1arch 1988. [7] P. A. Gillis and P. J. Srruth. ~F]ow Field Simulations in Industrial Furnace Configurations". presented at 19.5th ACS National ~1eeting in Toronto 33 , 2(215)' 1988. 19 |