This paper presents results from theoretical and numerical studies of a single-phase, temperature sensitive magnetic fluid operating under steady-state laminar flow conditions in a partially heated thermomagnetic circulation loop under the influence of an external magnetic field (created by a solenoid). A one-dimensional theoretical model has been developed using scaling arguments to characterize thermomagnetic circulation in this loop in terms of the geometric length scales, magnetic fluid properties, and strength of the imposed magnetic field. In parallel to this theoretical analysis, supporting numerical simulations using COMSOL Multiphysics simulation software have been undertaken to obtain data for use in this 1D model. A correlation for the non-dimensional heat transfer (Nusselt number) as a function of the appropriate magnetic Rayleigh number and a correlation for the mass flow rate based on the system’s properties are developed.
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ASME 2013 International Mechanical Engineering Congress and Exposition
November 15–21, 2013
San Diego, California, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5635-2
PROCEEDINGS PAPER
A Non-Dimensional Analysis to Characterize Thermomagnetic Convection of a Temperature Sensitive Magnetic Fluid in a Flow Loop
Giti Karimi-Moghaddam,
Giti Karimi-Moghaddam
North Carolina State University, Raleigh, NC
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Richard D. Gould,
Richard D. Gould
North Carolina State University, Raleigh, NC
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Subhashish Bhattacharya
Subhashish Bhattacharya
North Carolina State University, Raleigh, NC
Search for other works by this author on:
Giti Karimi-Moghaddam
North Carolina State University, Raleigh, NC
Richard D. Gould
North Carolina State University, Raleigh, NC
Subhashish Bhattacharya
North Carolina State University, Raleigh, NC
Paper No:
IMECE2013-66313, V08BT09A032; 8 pages
Published Online:
April 2, 2014
Citation
Karimi-Moghaddam, G, Gould, RD, & Bhattacharya, S. "A Non-Dimensional Analysis to Characterize Thermomagnetic Convection of a Temperature Sensitive Magnetic Fluid in a Flow Loop." Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition. Volume 8B: Heat Transfer and Thermal Engineering. San Diego, California, USA. November 15–21, 2013. V08BT09A032. ASME. https://doi.org/10.1115/IMECE2013-66313
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