Solutal rayleigh number
WebA numerical analysis has been carried out to evaluated the technical feasibility of single effect solar stills with a cover slope of up to 60°. The ai… Web× Close. The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such …
Solutal rayleigh number
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http://hs.link.springer.com.dr2am.wust.edu.cn/content/pdf/10.1140/epje/i2004-10074-4.pdf?pdf=button WebVariables like permeability anisotropy ratio, porosity, Prandtl number and solutal Rayleigh number were investigated within this study relative to the onset of convective instability …
In fluid mechanics, the Rayleigh number (Ra, after Lord Rayleigh ) for a fluid is a dimensionless number associated with buoyancy-driven flow, also known as free (or natural) convection. It characterises the fluid's flow regime: a value in a certain lower range denotes laminar flow; a value in a higher range, turbulent … See more The Rayleigh number describes the behaviour of fluids (such as water or air) when the mass density of the fluid is non-uniform. The mass density differences are usually caused by temperature differences. … See more Solidifying alloys The Rayleigh number can also be used as a criterion to predict convectional instabilities, such as A-segregates, in the mushy zone of a … See more • Rayleigh number calculator See more For free convection near a vertical wall, the Rayleigh number is defined as: where: • x is the characteristic length • Rax is the Rayleigh number for characteristic length x • g is acceleration due to gravity See more • Grashof number • Prandtl number • Reynolds number • Péclet number • Nusselt number See more WebNov 4, 2014 · Three asymptotic regimes are investigated in the limit of high Rayleigh number $\mathit{Ra}$, in which the domain is considered deep, shallow or of …
WebDec 16, 2024 · For small solutal Rayleigh numbers the front geometry is described by a curve that is nearly antisymmetric about the horizontal midplane. For large values of the … WebSep 18, 2024 · The critical wave number and frequency are also derived for a wide range of Lewis numbers and solutal Rayleigh numbers. The oscillatory modes are analyzed. It is …
WebThe computations are carried out for different values solutal Rayleigh number , Soret parameter , Dufour parameter , and Lewis number Le. The parameters considered are in …
Web@article{osti_5793265, title = {Improved computer program to predict rollover in LNG with and without nitrogen}, author = {Chatterjee, N and Studer, D W}, abstractNote = {Air … how can you contribute to our companyWebIn figure 3c, it can also be seen that for all values of the solutal Rayleigh number Ra S (i.e Ra S = −10 and Ra S = 10) the region of subcritical instability does not exist and the linear … how many people shop at safewayWebporous layer. Nield et al. (1993) examined the effect of inclined temperature and solutal gradients and showed that both the thermal and solutal Rayleigh numbers contribute … how can you contribute to our organizationWebJun 1, 2024 · Prandtl-number Effects in High-Rayleigh-number Spherical Convection. NASA Astrophysics Data System (ADS) Orvedahl, Ryan J.; Calkins, Michael A.; Featherstone, … how many people ship taekookWebIn this parametric study, the Prandtl number was fixed at 0.71. Thermal Rayleigh number, irreversibility distribution ratios and the inclination angle of the magnetic field are in the following ranges: 10 3 ≤ Ra ≤ 10 5; 10 −7 ≤ λ 1 ≤ 10 −4, 10 −1 ≤ λ 2 ≤ 0.5; 10 −5 ≤ λ 3 ≤ 10 −2 and 0° ≤ α ≤ 180°, respectively. how many people shop at target per dayWebThe Rayleigh number, shown below, is a dimensionless number that characterizes convection problems in heat transfer. A critical value exists for the Rayleigh number, … how many people ship drarryWebIn the present work we have investigated a SDI at extremely high solutal Rayleigh num- bers by using a very unorthodox sample, a dilute colloidal suspension with an unusually ˜ = … how many people shop at costco