A mean-field, effective medium theory of random binary alloys IV. The Heisenberg model with competing interactions and the mixed phase

Pramana ◽  
1985 ◽  
Vol 24 (4) ◽  
pp. 563-574 ◽  
Author(s):  
A Mookerjee ◽  
S B Roy
Keyword(s):  
Heisenberg Model ◽  
Effective Medium Theory ◽  
Binary Alloys ◽  
Mean Field ◽  
Effective Medium ◽  
Mixed Phase ◽  
Competing Interactions ◽  
Medium Theory

scholarly journals The friction of sliding wet textured surfaces: the Bruggeman effective medium approach revisited

2015 ◽  
Vol 471 (2183) ◽  
pp. 20140739 ◽  
Author(s):  
M. Scaraggi
Keyword(s):  
Effective Medium Theory ◽  
Mean Field ◽  
Effective Medium ◽  
Textured Surfaces ◽  
Mean Field Model ◽  
Medium Theory ◽  
Flow Equations ◽  
Repeated Pattern ◽  
Effective Medium Approach ◽  
The Mean

The mean field fluid dynamics and the friction occurring in the wet sliding contact between inhomogeneous surfaces, characterized by a deterministically repeated pattern of microdefects, are modelled within the Bruggeman effective medium theory. By comparing with the results of an accurate numerical homogenization of the flow equations, and with asymptotic solutions, we discuss the validity of the mean field model and its limitations in relation to the occurrence of clustering and interference effects. Finally, an analytical upgrade to the Bruggeman approach, allowing for inclusion of the clustering effect, is presented and discussed.

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