Webby 1 m plate will usually be larger (and never smaller) than hfor a 2 m by 2 m plate under otherwise identical conditions. The larger plate will transfer more heat because it has … WebFeb 9, 2024 · 1 Answer Sorted by: 2 The length in the Reynolds number is just a "characteristic length". Certainly the actual dynamics of the system can depend on the shape of the object, but the Reynolds number is "derived" from certain defined scales, so the shape is not important for this specific number. A description from Wikipedia might help:

Reynolds Number - Engineering ToolBox

WebVertical Plate (cont.) •The last two correlations presented contain a constant (~0.68and ~0.825) that takes into account the thermal behavior at small Rayleigh numbers, where the heat conduction through the fluid dominates. •The two relations are valid for an isothermal vertical plate. However, the correlations can be also used for the Webcharacteristic length scale for groundwater systems is the pore scale, which is typically quite small (< 1 mm), and groundwater flow is nearly always laminar. The characteristic … dough mixer 10l

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WebL is the vertical length D is the diameter ν is the kinematic viscosity. The L and D subscripts indicate the length scale basis for the Grashof number. The transition to turbulent flow occurs in the range 108 < GrL < 109 for natural convection from vertical flat plates. WebOct 9, 2015 · This 'penetration length' as the characteristic length scale is sometimes called is given as: $$\delta\left(t\right) = \sqrt{\pi D t}$$ ... (for a flat plate). Recognize … WebJul 30, 2024 · 1 Answer Sorted by: 1 With the Reynolds Number: Re = ρ v L μ the characteristic length L that can be used here is (e.g.): L = l + h 2 assuming that L ≫ w … dough mixer with hook