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References in periodicals archive ?
During the experiments, the Reynolds number was about 6250 depending on the diameter of permeable cylinder.
where d is set as the measured oil film thickness, u is set as the rotational speed of the rotor-side wall, and the value of [mu] is decided by the rotor-side temperature to calculate the Reynolds number of the oil film.
Figures 10(a) and 10(b) illustrate the relations of f/[f.sub.0] with the Reynolds number for the heat exchanger tube inserted with V-Downstream and V-Upstream wavy surfaces, respectively.
However, in the case of EAV-3 propellers, blade elements will be placed under conditions where the Reynolds number is less than [10.sup.5].
In this work, we focus on the effect of the Reynolds number, the particle initial position, as well as the density of particle on the final equilibrium position of particle, and its migration trajectory.
A bigger picture of results obtained in this work is shown in Table 2 and Table 3, with cases of Reynolds number starting from 1 up to 400.
The diameter = 2 mm; the distance between the cylinder and the slot was 5.9 cm; the distance between flat and laser sheet was 3 mm; Reynolds number = 800; and frame rate = 500 Hz.
The important parameters are Reynolds number (Re), friction factor (f), Nusselt number (Nu), and thermal enhancement factor (TEF).
According to Marks' Standard Handbook for Mechanical Engineers, flow inside a pipe will generally be fully turbulent when the Reynolds number reaches 4000.
[8] numerically predicted the effect of aiding thermal buoyancy over a square cylinder at low Reynolds number; the governing equations are solved in unsteady state, the range of Reynolds number is chosen between 5 and 40, the reported results presented that fluid flow becomes unstable when thermal buoyancy is increased, at some critical parameter of Richardson number, periodic vortex shedding is observed.
From figure (5), we can see clearly that the friction factor increases as nanofluid concentration increase, but the coefficient of friction factor decreases as Reynolds number increases as shown in figure (6) below.
The inlet Reynolds number is comparable to the one in the previously investigated DNS test case.