Numerical investigation of thermal radiation effects on open cavity with discrete heat sources

2013 ◽  
Vol 23 (4) ◽  
pp. 649-661 ◽  
Author(s):  
M.Y. Abdollahzadeh Jamalabadi ◽  
M. Ghassemi ◽  
M.H. Hamedi
Keyword(s):  
Thermal Radiation ◽  
Numerical Investigation ◽  
Radiation Effects ◽  
Open Cavity ◽  
Heat Sources ◽  
Discrete Heat Sources

scholarly journals Analysis of Peristaltic Motion of a Nanofluid with Wall Shear Stress, Microrotation, and Thermal Radiation Effects

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
C. Dhanapal ◽  
J. Kamalakkannan ◽  
J. Prakash ◽  
M. Kothandapani
Keyword(s):  
Shear Stress ◽  
Thermal Radiation ◽  
Radiation Effects ◽  
Heat Sources ◽  
Nanofluid Flow ◽  
Long Wavelength ◽  
Flow Reynolds Number ◽  
Micropolar Nanofluid ◽  
Flow Variables ◽  
Coupling Number

This paper analyzes the peristaltic flow of an incompressible micropolar nanofluid in a tapered asymmetric channel in the presence of thermal radiation and heat sources parameters. The rotation of the nanoparticles is incorporated in the flow model. The equations governing the nanofluid flow are modeled and exact solutions are managed under long wavelength and flow Reynolds number and long wavelength approximations. Explicit expressions of axial velocity, stream function, microrotation, nanoparticle temperature, and concentration have been derived. The phenomena of shear stress and trapping have also been discussed. Finally, the influences of various parameters of interest on flow variables have been discussed numerically and explained graphically. Besides, the results obtained in this paper will be helpful to those who are working on the development of various realms like fluid mechanics, the rotation, Brownian motion, thermophoresis, coupling number, micropolar parameter, and the nondimensional geometry parameters.

Two-dimensional simulation of thermal loading with horizontal heat sources

2011 ◽  
Vol 226 (5) ◽  
pp. 1302-1308 ◽  
Author(s):  
M Y A Jamalabadi ◽  
M Ghassemi ◽  
M H Hamedi
Keyword(s):  
Aspect Ratio ◽  
Thermal Radiation ◽  
Radiation Effects ◽  
Thermal Loading ◽  
Radiative Heat ◽  
Flow Characteristics ◽  
Heat Sources ◽  
Two Dimensional ◽  
Adiabatic Wall ◽  
Dimensional Simulation

A numerical investigation has been made of thermal radiation effects in an enclosure, which is formed by a constant temperature wall, an adiabatic wall, two openings, and block heat sources. The relevant governing parameters were the heating number, Nr from 0.05 to 500, the cavity aspect ratio, A =  H/ L from 0.1 to 1, and the number of heaters, N, an odd number ranging from 1 to 19. Heat transfer by natural convection solely and with thermal radiation on the thermal and flow characteristics of the system is studied. A parametric study illustrates the influence of the heating number, aspect ratio, the number of heaters, thermal radiation on the thermal loading characteristics of the system, Nusselt number, and the maximum stream function rate. The results reveal the main characteristics of thermal loading by radiative heat sources.

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