000			01650aab a2200205 4500
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022			_a0017-9310
100			_aDasari V. Rao _9880288
100			_aMohamed S. El-Genk _9880286
245			_aBuoyancy Induced Instability of Laminar Flows in Vertical Annuli—II. Model Development and Analysis
300			_a2161-2172 p.
520			_aA two-dimensional numerical model, based on the elliptic Navier-Stokes equations, is developed to predict the location of incipient instability, xfr, in low Reynolds number water flows in vertical annuli. Results show that neglecting the radial momentum can underpredict the values of xfr at high Grq/Re values by as much as 45%. Conversely, the axial momentum diffusion only insignificantly affects the velocity fields and, hence, the accuracy of predicting xfr. The results of a parametric analysis investigating the effects of various operating conditions and geometrical parameters is used to develop general criteria for predicting the onset of flow instability in vertical annuli. These criteria are within ± 10 and ± 15% of the experimental data for buoyancy assisted and opposed flows, respectively.
650			_aBuoyancy Induced Instability _9880587
650			_aLaminar Flows _9880588
650			_aVertical Annuli _9865363
650			_aModel Development and Analysis _9880589
773	0		_tInternational Journal of Heat and Mass Transfer _x00179310 _dNew York, U.S.A : Pergamon Subsidiary of Elsevier Science & Technology
856			_uhttps://www.sciencedirect.com/science/article/pii/001793109090117D
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c814901 _d814901