Coarse Grid Modeling

The summary for the Coarse Grid Modeling Federal Grant is detailed below. It contains information such as the Catalog of Federal Domestic Assistance (CFDA) number, who is eligible for the grant, how much grant money will be awarded, important deadlines, and a sampling of similar government grants. Verify the accuracy of the data FederalGrants.com provides by visiting the webpage noted in the Link to Full Announcement section or by contacting the appropriate person listed in the Grant Announcement Contact section. If these sections are incomplete, please visit the website of the government agency that is offering this grant.


	Federal Grant Title:	Coarse Grid Modeling
	CFDA Number:	81.057
	CFDA Description:	University Coal Research
	Federal Agency Name:	Headquarters
	Category of Funding Activity:	Science and Technology Energy
	Category Explanation:	Information not provided
	Opportunity Category:	Discretionary
	Funding Opportunity Number:	DE-PS26-05NT42472-11
	Document Type:	Grants Notice
	Funding Instrument Type:	Grant
	Posted Date:	May 25, 2005
	Creation Date:	May 25, 2005
	Original Closing Date for Applications:	Jul 07, 2005
	Current Closing Date for Applications:	Information not provided
	Archive Date:	Sep 25, 2005
	Expected Number of Awards:	Information not provided
	Estimated Total Program Funding:	Information not provided
	Federal Grant Award Ceiling:	Information not provided
	Federal Grant Award Floor:	Information not provided
	Cost Sharing or Matching Requirement:	Yes

Applicants Eligible for this Grant: Public and State controlled institutions of higher education Private institutions of higher education
Additional Information on Eligibility: Information not provided
Grant Description: NOTE - Registration Requirements: As part of theDepartment?s implementationof e-Government, WE ARE REQUIRING THE SUBMISSION OF APPLICATIONS THROUGHGRANTS.GOV. There are several one-time actions you must complete in ordertosubmit an application through Grants.gov (e.g., obtain a Dun and BradstreetData Universal Numbering System (DUNS) number, register with the CentralContractor Registration (CCR), register with the credential provider andregister with Grants.gov). You must complete all the one-time actions in?GetStarted? at www.Grants.gov prior to submitting your initial application.APPLICANTS, WHO ARE NOT REGISTERED WITH CCR AND GRANTS.GOV, SHOULD ALLOW ATLEAST 14 DAYS TO COMPLETE THESE REQUIREMENTS. It is suggested that theprocessbe started as soon as possible.Area of Interest 11 - Coarse Grid ModelingTwo-fluid model simulations of chemically reacting dense gas-solids systemsrequire a large number of computational cells to accurately resolve thehydrodynamic features. However, such an approach for large scale systemse.g.,the transport gasifier at the PSDF (http://psdf.southernco.com/index.html)isnot practical with today?s computers. Recent work has focused on thedevelopment of a sub-grid scale model that would allow a modeler to use acoarse grid with a sub-grid scale model for the gas-solids drag to accountforthe loss of hydrodynamic information due to the coarse grid. This approachwasdeveloped by considering a single representative computational cell withinanoverall two-dimensional simulation. This cell is then resolved with a veryfinegrid with periodic boundary conditions. Simulations of this cell are thenperformed and statistical data is collected to show the effect of gridresolution on the gas-solids drag coefficient.To use this approach for simulations on a scale similar to that of thetransport gasifier at PSDF, or larger, the earlier two-dimensional workwouldneed to be extended to three-dimensions to develop reliable coarse-grainedforms of the two-fluid models and boundary conditions that average over theeffects of small scale fluctuations, e.g. with filter lengths of 100 to1000particle diameters and commensurate temporal filters. The attributes ofsuchcoarse-grained models should lead to grid-size independent solutions withcoarser grids and larger time steps, and these solutions should representaccurately the macro-scale flow characteristics obtained in highly resolved(fine grid) two-fluid model simulations. The 2-D sub-grid modelconstitutiveequations and methodologies are available from the work referenced at thebottom.DOE is interested in research that will extend the 2-D sub-grid concept tothree-dimensions and demonstrate the coarse-grained forms for various termsinthe two-fluid model, and develop fundamentally based filter-size dependentclosed form closures for them or devise a validated computational approachtodetermine them. The methodology is as important as the final closed formequations, as two-fluid models continue to evolve and one should be able toadapt the methods developed in this research to improved two-fluid modelsasand when they become available. Sub-grid model validation will be done withfine grid comparisons to be done by the developer for simpleconfigurations.Large scale validation of such coarse-grained equations will bedemonstratedthrough comparison with highly resolved (fine grid) simulations of thestartingtwo-fluid model equations on meaningful test problems by NETL.To link to the master announcement DE-PS26-05NT42472-00, please click thefollowing link:https://e-center.doe.gov/iips/faopor.nsf/UNID/AFDC3E3018D30D1C8525700C005DB010?OpenDocument
Link to Full Grant Announcement: Visit this URL to view the Opportunity
https://e-center.doe.gov/iips/faopor.nsf/UNID/BD606D576496211C8525700C00675650?OpenDocument
Grant Announcement Contact: Contact the DOE Contract Officer with questionsregarding the funding opportunity johnson@netl.doe.gov Raymond Johnson
Similar Government Grants: • Support of Advanced Coal Research at U.S. Colleges and Universities; • Area of Interest 1A - Multiphase Flow Research; • Area of Interest 2A - Novel New Materials for Energy Conversion from Coal; • AREA OF INTEREST 3- NOVEL MATERIALS FOR SENSING OR MONITORING IN EXTREME ENVIRONMENTS OF FOSSIL ENER...; • Partitioning and Mechanism Studies for Mercury and Other Trace Metals within Coal-Fired Processes; • Water Usage in Future Power Generation Systems; • Gas Separations; • Computer-Aided Design of High-Temperature Materials; • Surface Modification of Alloys for Ultrasupercritical Coal-Fired Boilers