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## Article Entropy Generation at Natural Convection in an Inclined Rectangular Cavity (2011)

Citations: | 3 - 1 self |

### Citations

87 |
Natural Convection of Air in a Square Cavity: a Bench Mark Numerical Solution,”
- Davis, G
- 1983
(Show Context)
Citation Context ...rature. Table 1 gives comparison of these results for the case of a square cavity (A = 1). Table 1. Code validation test. Ra = Gr × Pr 10 3 10 4 10 5 Present Study 1.0987 2.279 4.618 Nu De Vahl Davis =-=[13]-=- 1.118 2.243 4.519 Baliga and Patankar [14] 1.114 2.218 4.371 From Table 1, our results are in good agreements with those obtained in [13] and [14]. 5. Results and Discussions The aim of the present s... |

44 |
A Study of Entropy Generation in Fundamental Convective Heat Transfer,”
- Bejan
- 1979
(Show Context)
Citation Context ...submitted to thermal gradients and friction effects are subjected to energy loss, which induces entropy generation in the system. Many studies have been published concerning entropy generation. Bejan =-=[1]-=- investigated entropy generation phenomena by considering a small 2D element of the fluid as an open thermodynamic system submitted to mass and energy fluxes. Poulikakos and Bejan [2] were interested ... |

20 |
Numerical Heat Transfer and Fluid Flow. Series in computational methods in mechanics and thermal sciences.
- Patankar
- 1980
(Show Context)
Citation Context ...ents are calculated at different points to avoid numerical oscillations. To resolve pressure-velocity components, the SIMPLE algorithm (Semi Implicit Method for Pressure Linked Equations) of Patankar =-=[10]-=- is firstly applied, then the SIMPLER algorithm (SIMPLE Revised) and the SIMPLEC approximation of Van Doormal and Raithby in which addition terms of pressure and their relative to velocity are conside... |

14 | Fin geometry for minimum entropy generation in forced convection,
- Poulikakos, Bejan
- 1982
(Show Context)
Citation Context ...eneration. Bejan [1] investigated entropy generation phenomena by considering a small 2D element of the fluid as an open thermodynamic system submitted to mass and energy fluxes. Poulikakos and Bejan =-=[2]-=- were interested in rectangular flasks in laminar flow; they showed that entropy generation is proportional to work loss in the system. To reduce irreversibility origins of entropy generation, three g... |

14 |
Entropy generation in turbulent liquid flow through a smooth duct subjected to constant wall temperature.
- Sahin
- 2000
(Show Context)
Citation Context ...ficient (h) by friction coefficient (Cf) using correlations appropriate to heat transfer and friction in turbulent regime. An analytical study of entropy generation’s problem was established by Sahin =-=[3]-=- who consider a viscous fluid’s turbulent flow in a duct. Results show that entropy generation initially decreases then increases along the duct, it is proportional to the dimensionless temperature di... |

14 |
Co-Located Equal-Order ControlVolume Finite-Element Method for Multidimensional, Incompressible, Fluid Flow Part I: Formulation,’’ Numer. Heat Transfer,
- Saabas, Baliga
- 1994
(Show Context)
Citation Context ...d the velocity scalar fields which depend on the choice of numerical support of resolution. In this study a modified version based on Control Volume Finite Element Method (CVFEM) of Saabas and Baliga =-=[9]-=- is used. A standard grid in which diagonals are added to form triangular elements around each node where velocity components are calculated is considered. A staggered grid is used to calculate pressu... |

13 |
A Control Volume Finite-Element Method for Two Dimensional Fluid Flow and Heat Transfer”, Numerical Heat Transfer
- Baliga, Patankar
- 1983
(Show Context)
Citation Context ...esults for the case of a square cavity (A = 1). Table 1. Code validation test. Ra = Gr × Pr 10 3 10 4 10 5 Present Study 1.0987 2.279 4.618 Nu De Vahl Davis [13] 1.118 2.243 4.519 Baliga and Patankar =-=[14]-=- 1.114 2.218 4.371 From Table 1, our results are in good agreements with those obtained in [13] and [14]. 5. Results and Discussions The aim of the present study is to investigate the influence of the... |

11 |
Entropy Generation for Natural Convection in an Inclined Porous Cavity,’’
- Baytas
- 2000
(Show Context)
Citation Context ...increases along the duct, it is proportional to the dimensionless temperature difference: Tw −T0 ( τ = ) T where Tw and To represent wall temperature and fluid temperature input, respectively. Baytas =-=[4,5]-=- determined entropy generation in an inclined square cavity with two isotherm walls and two adiabatic walls. He firstly [4] determined optimum angles for which energy losses are reduced. It was shown ... |

9 |
Brahim,A.Entropy generation at the onset of natural convection
- Magherbi, Abbasi
(Show Context)
Citation Context ...ahraman [6] showed that irreversibility distributions are not continuous through the horizontal walls of a rectangular enclosure that it was differentially heated from its upper side. Magherbi et al. =-=[7]-=- numerically studied entropy generation at the onset of natural convection in a square cavity. They wEntropy 2011, 13 1023 showed that entropy generation depends on thermal Rayleigh number. The effec... |

9 |
Mixed Convection in a Plane Channel With a Built-In Triangular Prism,” Numer. Heat Transfer,
- Abbassi, Turki, et al.
- 2001
(Show Context)
Citation Context ...ion with an Alternating Direction Implicit (ADI) scheme for performing the time evolution. The used numerical code written in FORTRAN language was described and validated in details in Abbassi et al. =-=[11,12]-=-. Nusselt number (Nu) that describes heat transfer can be considered as a good criterion for validation of our code by comparison of the obtained results with those given in literature. Table 1 gives ... |

5 |
Entropy generation in a rectangular packed duct with wall heat flux
- Demirel, Kahraman
- 1999
(Show Context)
Citation Context ... entropy generation in a porous cavity was studied [5]. It was found that entropy generation is the result of a continuous exchange of energy between fluid and enclosure’s walls. Demirel and Kahraman =-=[6]-=- showed that irreversibility distributions are not continuous through the horizontal walls of a rectangular enclosure that it was differentially heated from its upper side. Magherbi et al. [7] numeric... |

4 |
Numerical investigation of forced convection in a plane channel with a built-in triangular prison,
- Abbassi, Turki, et al.
- 2001
(Show Context)
Citation Context ...ion with an Alternating Direction Implicit (ADI) scheme for performing the time evolution. The used numerical code written in FORTRAN language was described and validated in details in Abbassi et al. =-=[11,12]-=-. Nusselt number (Nu) that describes heat transfer can be considered as a good criterion for validation of our code by comparison of the obtained results with those given in literature. Table 1 gives ... |

1 |
Optimisation in an inclined enclosure for minimum entropy generation in convection
- Baytas
- 1997
(Show Context)
Citation Context ...increases along the duct, it is proportional to the dimensionless temperature difference: Tw −T0 ( τ = ) T where Tw and To represent wall temperature and fluid temperature input, respectively. Baytas =-=[4,5]-=- determined entropy generation in an inclined square cavity with two isotherm walls and two adiabatic walls. He firstly [4] determined optimum angles for which energy losses are reduced. It was shown ... |

1 |
Entropy Generation Minmisation
- Bejan
- 1996
(Show Context)
Citation Context ... volume (Ω) of the dimensionless local entropy generation: S • SldΩ v = � (19) An alternative irreversibility distribution parameter called Bejan number (Be) is given in dimensionless form as follows =-=[8]-=-: Be = S� lah , , S� l (20) When Be >> 1/2, the irreversibility due to heat transfer dominates. For Be << 1/2, the irreversibility due to viscous effects dominates. For Be = 1/2, heat transfer and flu... |