It is experimentally shown that the nonclassical high Reynolds number energy dissipation behavior, C(ε)≡εL/u(3)=f(Re(M))/Re(L), observed during the decay of fractal square grid-generated turbulence (where Re(M) is a global inlet Reynolds number and Re(L) is a local turbulence Reynolds number) is also manifested in decaying turbulence originating from various regular grids. For sufficiently high...

All known data are collected on the Kolmogorov constant in one-dimensional spectral formula for the inertial range. For large enough microscale Reynolds numbers, the data (despite much scatter) support the notion of a “universal” constant that is independent of the flow as well as the Reynolds number, with a numerical value of about 0.5. In particular, it is difficult to discern support for a r...

An optimum airfoil design for future Mars airplane for Mars exploration is obtained by evolutionary computation coupled with a two-dimensional Reynolds-averaged Navier-Stokes solver. The optimized airfoil design is also compared with other airfoil designs optimized at different Reynolds number or at different Mach number to discuss Reynolds number and Mach number effects on airfoil design. Thes...

0017-9310/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.ijheatmasstransfer.2009.07.017 * Corresponding author. Address: Centro Atómico 8400, Rio Negro, Argentina. E-mail address: [email protected] (F.E. Terue A large set of microscopic flow simulations in the Representative Elementary Volume (REV) of a porous medium formed by staggered square cylinders is presented. For each Reynol...

ACKNOWLEDGEMENTS The medical case histories referred to are the original MS records now bound in one volume and filed in the hospital on the island. For background information the literature is very meagre, but I have had recourse to the following: St. Helena by Philip Gosse, (London, Cassell, 1938); Six Months on Ascension by Mrs. Gill (London, John Mufray); Darwin and The Beagle, by Alan Moor...

ion Theorem x1 : A1, . . . , xn : An ` t : B in F2 ⇒ (x1, x1) ∈ A ∗‡ 1 , . . . , (xn, x ′ n) ∈ A∗‡ n ` (|t|, |t|′) ∈ B∗‡ in P2

numerical and experimental analyses are performed on multilouvered fin banks in low and medium reynolds regimes to investigate the effects of dimples and perforations on flow structure and heat transfer capacity. in different reynolds numbers the flow efficiency has been calculated numerically and experimentally by flow visualization method and the results showed that dimples and perforations c...

Flow characteristics of low Reynolds number laminar flow through gradually expanding conical and planar diffusers were investigated. Such diffusers are used in valveless micropumps to effect flow rectification and thus lead to pumping action in one preferential direction. Four different types of diffuser flows are considered: fully developed and thin inlet boundary layer flows through conical a...