Characterization of Air Flow Through Sintered Metal FoamsSource: Journal of Fluids Engineering:;2008:;volume( 130 ):;issue: 005::page 51201Author:Oliver Reutter
,
Stefanie Angel
,
Thomas Fend
,
Robert Pitz-Paal
,
Elena Smirnova
,
Jörg Sauerhering
DOI: 10.1115/1.2907419Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigates air flow in metallic foams, which are produced by the slip reaction foam sintering (SRFS) process. It was conducted as part of the collaborative research center (SFB) 561 “Thermally Highly Loaded, Porous and Cooled Multi-Layer Systems for Combined Cycle Power Plants.” The flow through a porous medium is analyzed by Darcy’s equation with the Dupuit/Forchheimer extension. All measurements can be described very well by this equation and permeability and inertial coefficients are obtained for a large quantity of samples with different base materials and different porosities. A threshold porosity of 70% is observed, above which the pressure loss significantly starts sinking with porosity. Additionally, it was found that the permeability was anisotropic. Permeability is lower in the direction of gravity during foaming. Scattering in the data of the permeability and inertial coefficients versus the porosity is observed and discussed.
keyword(s): Density , Pressure , Flow (Dynamics) , Permeability , Measurement , Air flow , Metal foams , Porosity , Pressure drop , Foams (Chemistry) , Sintering , Temperature , Porous materials AND Gravity (Force) ,
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| contributor author | Oliver Reutter | |
| contributor author | Stefanie Angel | |
| contributor author | Thomas Fend | |
| contributor author | Robert Pitz-Paal | |
| contributor author | Elena Smirnova | |
| contributor author | Jörg Sauerhering | |
| date accessioned | 2017-05-09T00:28:27Z | |
| date available | 2017-05-09T00:28:27Z | |
| date copyright | May, 2008 | |
| date issued | 2008 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27312#051201_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/138231 | |
| description abstract | This study investigates air flow in metallic foams, which are produced by the slip reaction foam sintering (SRFS) process. It was conducted as part of the collaborative research center (SFB) 561 “Thermally Highly Loaded, Porous and Cooled Multi-Layer Systems for Combined Cycle Power Plants.” The flow through a porous medium is analyzed by Darcy’s equation with the Dupuit/Forchheimer extension. All measurements can be described very well by this equation and permeability and inertial coefficients are obtained for a large quantity of samples with different base materials and different porosities. A threshold porosity of 70% is observed, above which the pressure loss significantly starts sinking with porosity. Additionally, it was found that the permeability was anisotropic. Permeability is lower in the direction of gravity during foaming. Scattering in the data of the permeability and inertial coefficients versus the porosity is observed and discussed. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Characterization of Air Flow Through Sintered Metal Foams | |
| type | Journal Paper | |
| journal volume | 130 | |
| journal issue | 5 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.2907419 | |
| journal fristpage | 51201 | |
| identifier eissn | 1528-901X | |
| keywords | Density | |
| keywords | Pressure | |
| keywords | Flow (Dynamics) | |
| keywords | Permeability | |
| keywords | Measurement | |
| keywords | Air flow | |
| keywords | Metal foams | |
| keywords | Porosity | |
| keywords | Pressure drop | |
| keywords | Foams (Chemistry) | |
| keywords | Sintering | |
| keywords | Temperature | |
| keywords | Porous materials AND Gravity (Force) | |
| tree | Journal of Fluids Engineering:;2008:;volume( 130 ):;issue: 005 | |
| contenttype | Fulltext |