Time irreversibility is a distinctive feature of non-equilibrium phenomena such as turbulent flows, where mainly associated with an energy cascade process. An Eulerian, multiscale analysis time in wall-bounded turbulence proposed this study, which differs from previous works relying on Lagrangian approach and focusing homogeneous turbulence. Outcomes reveal strong connection between levels cohe...

We propose a natural stretching function for DNS of wall-bounded flows, which blends uniform near-wall spacing with resolution in terms Kolmogorov units the outer wall layer. Numerical simulations pipe flow are used to educe optimal value blending parameter and grid guarantee accuracy computational efficiency as results maximization allowed time step. Conclusions supported by carried out at suf...

in this study, the effect of wall orientation on the optimum insulation position in the wall from different perspectives is studied numerically. using crank- nicolson one dimensional transient heat conduction equation is solved for the wall with convection boundary conditions. outdoor temperature is considered as a periodic function of time. since natural night ventilation is used in the buildi...

Transfer cells are characterized by wall labyrinths with either a flange or reticulate architecture. A literature survey established that reticulate wall ingrowth papillae ubiquitously arise from a modified component of their wall labyrinth, termed the uniform wall layer; a structure absent from flange transfer cells. This finding sparked an investigation of the deposition characteristics and r...

Cystic hydatid disease is caused by cystic larval (metacestode) stages of Echinococcus granulosus. This parasite can potentially occur all over the world especially in Mediterranean and Middle East countries and some parts of Africa, Latin America and China which have major foci of human infections. The cyst wall of metacestodes consists of inner, middle and external layers. To date, little att...

Near-wall turbulent velocities in channel flows are decomposed into small-scale and large-scale components at $y^+<100$ by improving the predictive inner-outer model of Baars et al. [Phys. Rev. Fluids 1, 054406 (2016)], where $y^+$ is viscous-normalized wall-normal height. The one obtained reducing outer reference height (a parameter model) from center logarithmic layer to $y^+=100$, which can ...

background &amp; objective: abdominal cutaneous and subcutaneous nodules are uncommon lesions which may be benign or malignant. majority of the malignant nodules are metastatic in origin and may be the initial presentation of primary malignancy, hence an early diagnosis is important. our aim was to find out the spectrum of lesions (both non-neoplastic and neoplastic) that present as cutaneous a...