Table 13-6. Darcy-Weisbach Friction Factor Correlations [12] Flow RegionFriction Factor, fReynolds Range Laminar f=64/Re Re < 2100 Smooth pipe 1/f=2log10(Ref)−0.8 Re > 4000 and ɛ/D →0 Transitional, Colebrook-White correlation 1/f=1.14−2log10(ɛ/D+9.35/(Ref)) ...
Assuming that Darcy's experiments were performed with water at 10 °C (the experiments leading to the results shown in Table 1 were performed during February, 1856, in Dijon), the average permeability of his filter according to our calculations would be 3.7 × 10−11 m2 (or, equivalently,...
Friction factor Gr: Grashof number Pr: Prandtl number \(Cf\): Surface friction factor Sheikholeslami, M., Sheremet, M. A., Shafee, A. & Li, Z. CVFEM approach for EHD flow of nanofluid through porous medium within a wavy chamber under the impacts of radiation and moving walls., 10 (2...
It is to be seemed as enhance in the value of the magnetic parameter, Deborah number and also for the porosity parameter, the value of the coefficient of local skin friction boosted up gradually, is demonstrated in Table 2. Table 1. Comparison of local Nusselt number for M when Γ = 0.2...
Table 3. Comparison of Skin friction for varying in α. αAli et al. (Ali et al., 2021)HAM (Current result) 0 0.56419 0.56420 π24 0.57502 0.57510 π12 0.58073 0.58074 π6 0.57700 0.57710 π4 0.55287 0.55288 π3 0.50723 0.50724 5π12 0.43687 0.43690 11π24 0.39000 0.40000 π2 0.33206...
As can be seen from Table 2, the non-Darcy coefficient decreases sharply with the increase of the mean particle diameter, porosity and permeability. This may be because the larger particle size is, the greater the porosity will be, leading to the greater permeability and smaller non-Darcy coef...
1 software, the cohesion and friction angle of the rock were derived from triaxial compression test results and assuming a Hoek-Brown Failure envelope. Table 1. Input micro parameters used for calibration of the DEM model. Micro parametersValue Kn/Ks 1.50 ε0n 3.75e-3 ε0n/ε0s 0.30 ε0...
Table 3 shows the physical properties of some nanoparticles. Table 1. Computed numerical values of skin friction coefficient Cf for numerous values of k, M, and c, when 𝜆,𝑀 and 𝛾, 𝜑𝑛𝑝1=2%,𝜑𝑛𝑝2=3%λ,M and γ, φnp1=2%,φnp2=3%. Table 2. ...
Table 1. Computed numerical values of skin friction coefficient Cf for numerous values of k, M, and c, when λ , M and γ , φ n p 1 = 2 % , φ n p 2 = 3 % . Table 2. Numerical computed values of Nusselt number for numerous values of Pr , N b , N t...
The graphical features of the embedded flow of fluids were captured in Figures 2–21 on the velocity, temperature profiles, the skin friction, and the local Nusselt number against the enormous distinct parameters. The numerical results with accessible conclusions are referenced in Table 1, which ...