Unsteady 2D conjugate natural non-Newtonian convection with non-Newtonian liquid sterilization in square cavity

被引：17

作者：

Lemus-Mondaca, Roberto A. ^{[1
]}

Moraga, Nelson O. ^{[2
]}

Riquelme, Jose ^{[3
]}

机构：

[1] Univ La Serena, Dept Ingn Alimentos, La Serena, Chile

[2] Univ La Serena, Dept Ingn Mecan, La Serena, Chile

[3] Univ Santiago Chile, Dept Ingn Mecan, Santiago, Chile

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2013年 / 61卷

关键词：

Non-Newtonian liquid; Conjugated convection/sterilization; Finite volume method; Numerical simulation; COMPUTATIONAL FLUID-DYNAMICS; MIXED CONVECTION; HEAT-TRANSFER; FOOD; TEMPERATURE; SIMULATION; PLATE;

D O I：

10.1016/j.ijheatmasstransfer.2013.01.079

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Unsteady 2D natural convection driven sterilization of a non-Newtonian liquid inside a square container caused by external natural convection of a non-Newtonian fluid has been studied numerically. Carboxy-methyl-cellulose was chosen as the internal non-Newtonian liquid food and external heating fluid, both treated in terms of a Power Law model. Conjugate convective fluid and heat transport, described in terms of non linear coupled continuity, momentum, and energy equations, were solved by using the finite volume method with the SIMPLE algorithm. Time evolution for velocity and temperature distributions for inner liquid food and outer fluid flow are described. The effect of assuming pseudoplastic (n = 0.6), Newtonian (n = 1.0) and dilatant (n = 1.4) fluid models on fluid dynamics, natural convection and sterilization is analyzed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：73 / 81

页数：9

共 32 条

[1] Finite element study of mixed convection for non-Newtonian fluid between two coaxial rotating cylinders [J].

Amoura, M. ;

Zeraibi, N. ;

Smati, A. ;

Gareche, M. .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2006, 33 (06) :780-789

[2] Food freezing with simultaneous surface dehydration:: approximate prediction of weight loss during freezing and storage [J].

Campañone, LA ;

Salvadori, VO ;

Mascheroni, RH .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2005, 48 (06) :1195-1204

[3] Heat transfer mechanism for Newtonian and non-Newtonian fluids in 2:1 rectangular ducts [J].

Chang, PY ;

Chou, FC ;

Tung, CW .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1998, 41 (23) :3841-3856

[4]

Chhabra R.P., 1999, Non-Newtonian Flow in the Process Industries: Fundamentals and Engineering Applications

[5] HEAT TRANSFER TO PSEUDOPLASTIC FLUIDS IN LAMINAR FLOW [J].

CHRISTIANSEN, EB ;

CRAIG, SE .

AICHE JOURNAL, 1962, 8 (02) :154-160

[6] Modelling of twin-roll strip casting processes [J].

Cruchaga, MA ;

Celentano, DJ ;

Lewis, RW .

COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING, 2003, 19 (08) :623-635

[7] Computational fluid dynamics analysis of combined conductive and convective heat transfer in model eggs [J].

Denys, S ;

Pieters, JG ;

Dewettinck, K .

JOURNAL OF FOOD ENGINEERING, 2004, 63 (03) :281-290

[8] A new computational technique for the estimation of sterilization time in canned food [J].

Farid, M ;

Ghani, AGA .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2004, 43 (04) :523-531

[9] Using the computational fluid dynamics to analyze the thermal sterilization of solid-liquid food mixture in cans [J].

Ghani, AGA ;

Farid, MM .

INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES, 2006, 7 (1-2) :55-61

[10] Theoretical and experimental investigation of the thermal destruction of Vitamin C in food pouches [J].

Ghani, AGA ;

Farid, MM ;

Chen, XD .

COMPUTERS AND ELECTRONICS IN AGRICULTURE, 2002, 34 (1-3) :129-143

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