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Viscoelastic Effects on the Entropy Production in Oscillatory Flow between Parallel Plates with Convective Cooling
Departamento de Fisica, Facultad de Ciencias, UAEM, Cuernavaca, Morelos, 62209, Mexico
Seccion de Estudios de Posgrado e Investigacion, ESIME-Culhuacan, Instituto Politecnico Nacional, 04430, Mexico
Departamento de Termociencias, Centro de Investigacion en Energia, Universidad Nacional Autonoma de Mexico, A. .P. 34, Temixco, Morelos 62580, Mexico
* Author to whom correspondence should be addressed.
Received: 13 November 2008; Accepted: 22 December 2008 / Published: 28 December 2008
Abstract: The heat transfer problem of a zero-mean oscillatory flow of a Maxwell fluid between infinite parallel plates with boundary conditions of the third kind is considered. With these conditions, the amount of heat entering or leaving the system depends on the external temperature as well as on the convective heat transfer coefficient. The local and global time-averaged entropy production are computed, and the consequences of convective cooling of the plates are also assessed. It is found that the global entropy production is a minimum for certain suitable combination of the physical parameters. For a discrete set of values of the oscillatory Reynolds number, the extracted heat from one of the plates shows maxima.
Keywords: Entropy generation; Optimization; Oscillatory flows; boundary conditions of the third type
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MDPI and ACS Style
Vázquez, F.; Olivares-Robles, M.Á.; Cuevas, S. Viscoelastic Effects on the Entropy Production in Oscillatory Flow between Parallel Plates with Convective Cooling. Entropy 2009, 11, 4-16.
Vázquez F, Olivares-Robles MÁ, Cuevas S. Viscoelastic Effects on the Entropy Production in Oscillatory Flow between Parallel Plates with Convective Cooling. Entropy. 2009; 11(1):4-16.
Vázquez, Federico; Olivares-Robles, Miguel Ángel; Cuevas, Sergio. 2009. "Viscoelastic Effects on the Entropy Production in Oscillatory Flow between Parallel Plates with Convective Cooling." Entropy 11, no. 1: 4-16.