In thermal fluid dynamics, the Nusselt number (Nu, after Wilhelm Nusselt: 336 ) is the ratio of total heat transfer to conductive heat transfer at a boundary...
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diffusivities: Ra = B/μ × ν/α. It is closely related to the Nusselt number (Nu). The Rayleigh number describes the behaviour of fluids (such as water or air)...
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Kraft Wilhelm Nußelt (Nusselt in English; November 25, 1882, in Nuremberg – September 1, 1957, in Munich) was a German engineer. Nusselt studied mechanical...
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heat transfer coefficient is often calculated from the Nusselt number (a dimensionless number). There are also online calculators available specifically...
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The Sherwood number (Sh) (also called the mass transfer Nusselt number) is a dimensionless number used in mass-transfer operation. It represents the ratio...
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layer thickness. For incompressible flow over a flat plate, the two Nusselt number correlations are asymptotically correct: N u x = 0.339 R e x 1 2 P r...
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fluctuations and of the systematic average behavior in mesoscopic systems Nusselt number Patankar, Suhas V. (1980). Numerical Heat Transfer and Fluid Flow. New...
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Churchill–Bernstein equation is used to estimate the surface averaged Nusselt number for a cylinder in cross flow at various velocities. The need for the...
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local Nusselt number. This is only true when the magnitude of Prandtl number is small or prescribed wall heat flux (WHF) is considered. Sherwood number, Bejan...
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Dimensionless quantity (redirect from Dimensionless number)
can accept or emit light. Sherwood number – (also called the mass transfer Nusselt number) is a dimensionless number used in mass-transfer operation. It...
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can be evaluated as the ratio of (NNIF) to (FFIF)[6]. Where (NNIF)=Nusselt Number Improvement Factor and (FFIF)=Friction Factor Improvement Factor Temperature...
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length [m] of the geometry considered. (The Biot number should not be confused with the Nusselt number, which employs the thermal conductivity of the fluid...
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View factor (redirect from Nusselt analog)
intuition about the view factor was developed by Wilhelm Nusselt, and is called the Nusselt analog. The view factor between a differential element dAi...
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\mathrm {Pr} }}} where Nu is the Nusselt number; Re is the Reynolds number; Pr is the Prandtl number. The Stanton number arises in the consideration of...
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dimensionless numbers such as the Reynolds number in fluid dynamics, the Nusselt number in heat transfer, and the Archimedes number in sedimentation. They also develop...
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forward. For this purpose, correlations for the peripherally averaged Nusselt number are, if none, of little use when keeping heat flux conditions constant...
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transfer coefficient, N u c {\displaystyle {\mathit {Nu}}_{c}} is the Nusselt number, k {\displaystyle k} is the thermal conductivity of the fluid and d...
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{0.5}{Pr}}\right)^{\frac {9}{16}}\right]^{\frac {-16}{9}}} Nu is the Nusselt number and the values of Nu0 and the characteristic length used to calculate...
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several dimensionless numbers are used such as Nusselt number, Reynolds number, and Prandtl number. The commonly used equation is N u a = h a D k {\displaystyle...
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(Nu+), a form of seed reproduction that occurs in certain plant species Nusselt number (Nu), a dimensionless heat transfer ratio Nanodalton, a unit of mass;...
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friction coefficient (Cf), which is a dimensionless frictional stress, and Nusselt number (Nu), which indicates the magnitude of convectional heat transfer. Turbine...
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properties are calculated when using the Prandtl number, Nusselt number, Reynolds number or Grashof number to calculate a heat transfer coefficient, because...
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gas to the droplet can be expressed as a function of the Nusselt number. The Nusselt number describes a non-dimensional heat transfer rate to the droplet...
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diagonals give common symbols for the quantities, and the given dimensionless number is the ratio of the left column quantity over top row quantity; e.g. Re...
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{Nu} _{b}=C_{fc}(\mathrm {Re} _{b},\mathrm {Pr} _{L})} Where Nu is the Nusselt number, defined as: N u b = ( q / A ) D b ( T s − T s a t ) k L {\displaystyle...
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including convection and evaporation. Conduction is negligible – the Nusselt number is much greater than unity. Evaporation by perspiration is only required...
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while correlations for the calculation of Darcy-Friction-Factor and Nusselt number in pillow plates over a wide range of geometrical parameters variations...
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utilize the Nusselt number and are only valid when the Reynolds number is greater than 10,000. While Dittus-Boelter requires the Prandtl number to be between...
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conduction Thermal radiation Heat pipe Laser-heated pedestal growth Nusselt number Thermomagnetic convection CIMAS (2008). "Ocean Surface Currents Glossary"...
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power. Vafai has conducted research on the interrelationship between Nusselt number oscillations, temperature distribution, fluid flow patterns, and vortex...
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