The SPQR («Semper Paratus ad Qualitatem et Rationem») Principle in Action
Issue:
Volume 2, Issue 3, June 2017
Pages:
27-52
Received:
25 May 2017
Accepted:
6 June 2017
Published:
13 July 2017
Abstract: We show an application of the SPQR Principle [«Semper Paratus ad Qualitatem et Rationem (“Always Ready for Quality and Rationality”)»] as the way to analyse papers and books; it seems that very few people have taken care of Quality of Methods (Deming, Juran, Gell-Mann, Shewhart, Einstein, Galilei). The case analysed here is about a Design of Experiment application to Large-Scale Metrology and to Control Charts.
Abstract: We show an application of the SPQR Principle [«Semper Paratus ad Qualitatem et Rationem (“Always Ready for Quality and Rationality”)»] as the way to analyse papers and books; it seems that very few people have taken care of Quality of Methods (Deming, Juran, Gell-Mann, Shewhart, Einstein, Galilei). The case analysed here is about a Design of Experi...
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Finite Element Analysis of MHD Natural Convection in a Rectangular Cavity and Partially Heated Wall
Md. Shahidul Alam,
Md. Shirazul Hoque Mollah,
Md. Abdul Alim,
Md. Kazi Humayun Kabir
Issue:
Volume 2, Issue 3, June 2017
Pages:
53-58
Received:
30 May 2017
Accepted:
16 June 2017
Published:
18 July 2017
Abstract: In this paper numerical study is presented of two-dimensional laminar steady-state on megneto-hydrodynamics (MHD) free convection for heat flow patterns within rectangular enclosures. A finite element analysis is performed to investigate the effects of uniform heating and is also used for solving the Navier-Stokes and Energy balance equations. The horizontal bottom wall is divided into three sections. The middle section of the horizontal bottom wall was kept temperature at Th and the other two parts of the horizontal bottom wall were kept thermal insulation while the left and right vertical walls and the top wall of the cavity were maintained constant temperature Tc with Th>Tc. Parametric studies of the fluid flow and heat transfer in the enclosure are performed for magnetic parameter Hartmann number (Ha = 0, 50, 100), Rayleigh number (Ra = 103 – 106) and Prandtl number Pr=0.71. The streamlines, isotherms, average Nusselt number at the hot wall and velocity profiles and temperature distribution of the fluid in the enclosure are presented for the parameters. The numerical results indicated that the Hartmann number and Rayleigh number have strong influence on the streamlines and isotherms. Also the mentioned parameters have significant effect on average Nusselt number at the hot wall and average temperature of the fluid in the enclosure.
Abstract: In this paper numerical study is presented of two-dimensional laminar steady-state on megneto-hydrodynamics (MHD) free convection for heat flow patterns within rectangular enclosures. A finite element analysis is performed to investigate the effects of uniform heating and is also used for solving the Navier-Stokes and Energy balance equations. The ...
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