National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Liquid Metal Flows in Circular Insulated Ducts in Nonuniform Magnetic Fields.

DE200242096

Publication Date	2002
Personal Author	Molokov, S.; Reed, C. B.
Page Count	22
Abstract	Magnetohydrodynamic flows in insulated circular ducts in nonuniform magnetic fields are studied with reference to liquid metal blankets and divertors of fusion reactors. Particular emphasis is made on C-MOD. The ducts are supposed to be straight, while the gradient of the magnetic field to be inclined by an angle (alpha) to the duct axis. The results are presented for the values of the Hartmann numbers, Ha, of 1000 and 100. Three-dimensional pressure drop, development length, three-dimensional length and nonuniformities of the velocity profiles have been evaluated. It has been shown that for Ha = 1000 the three-dimensional effects are of considerable importance, while for Ha = 100 they may be neglected.
Keywords	Magnetic fields Liquid metals Ducts Divertors Pressure drops Velocity Metal flows Thermonuclear reactors Magnetohydrodynamics Circular insulated ducts
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.; Coventry Univ. (England).
Supplemental Notes	Prepared in cooperation with Coventry Univ. (England). Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200221

Liquid Metal Flows in Circular Insulated Ducts in Nonuniform Magnetic Fields.

Liquid Metal Flows in Circular Insulated Ducts in Nonuniform Magnetic Fields.
DE200242096

Publication Date	2002
Personal Author	Molokov, S.; Reed, C. B.
Page Count	22
Abstract	Magnetohydrodynamic flows in insulated circular ducts in nonuniform magnetic fields are studied with reference to liquid metal blankets and divertors of fusion reactors. Particular emphasis is made on C-MOD. The ducts are supposed to be straight, while the gradient of the magnetic field to be inclined by an angle (alpha) to the duct axis. The results are presented for the values of the Hartmann numbers, Ha, of 1000 and 100. Three-dimensional pressure drop, development length, three-dimensional length and nonuniformities of the velocity profiles have been evaluated. It has been shown that for Ha = 1000 the three-dimensional effects are of considerable importance, while for Ha = 100 they may be neglected.
Keywords	Magnetic fields Liquid metals Ducts Divertors Pressure drops Velocity Metal flows Thermonuclear reactors Magnetohydrodynamics Circular insulated ducts
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.; Coventry Univ. (England).
Supplemental Notes	Prepared in cooperation with Coventry Univ. (England). Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200221