Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as
Accession Number DE2012-1054715
Title Particle Image Velocimetry Measurements and Analysis of Bypass Data for a Scaled 6 mm Gap.
Publication Date Sep 2012
Media Count 19p
Personal Author J. R. Wolf R. R. Schultz T. E. Condor
Abstract This report presents the results of fluid dynamics experiments conducted in the matched index-of-refraction flow system at Idaho National Laboratory. The experiments used primarily particle image velocimetry to measure the anticipated bypass flow associated with a prismatic gas turbine-modular helium reactor. A model which represents a stacked junction of six partial fuel blocks with nine coolant tubes and axial and radial gaps was manufactured and installed in the MIR; after which, stereo PIV was employed to measure the flow field within. Measurements were taken in three locations along the length of the model: in the upper plenum and in the midsections of both the large and small fuel blocks. Flow rates were calculated for the coolant channels and gaps for comparison. For the test conditions used, flow in the gaps was determined to be laminar while flow in the coolant channels was transitional. The bypass ratio was estimated to range from 6.8 to 15.8% for the considered flow rates.
Keywords Benchmarks
Data bases
Flow rate
Fluid dynamics
Nuclear reactors
Particle Image Velocimetry(PIV)

Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 46B - Fluid Mechanics
94K - Laboratory & Test Facility Design & Operation
77 - Nuclear Science & Technology
Corporate Author Idaho National Laboratory, Idaho Falls, ID.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1308
Contract Number DE-AC07-06ID14517

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader