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American Society for Testing and Materials

The boundary layer equations for plane, incompressible, and steady flow are 

$$\matrix{ {u{{\partial u} \over {\partial x}} + v{{\partial u} \over {\partial y}} = - {1 \over \varrho }{{\partial p} \over {\partial x}} + v{{{\partial ^2}u} \over {\partial {y^2}}},} \cr {0 = {{\partial p} \over {\partial y}},} \cr {{{\partial u} \over {\partial x}} + {{\partial v} \over {\partial y}} = 0.} \cr }$$

Boundary Layer Theory

Boundary-layer flow of a nanofluid past a stretching sheet

The flow of homogeneous fluids through porous media: analogies with other physical problems

Natural convective boundary-layer flow of a nanofluid past a vertical plate

Hydroentanglement is a fast-growing process for manufacturing non-woven fabrics. In this process, multiple fine jets of highly pressurised water are directed towards a fibreweb composed initially of loose fibres, supported by the forming belt. The impact of the jets causes fibre entanglement in the fibreweb and produces an integrated fabric with desired aesthetics. It is important that, at the end of the process, the fibreweb could be easily separated from the forming wires. In this paper, the peeling force required for the separation of the hydroentangled fabric from the forming wires is measured experimentally. Numerical simulations of the hydroentanglement process are also carried out to predict the probability of fibres to be pushed in the knuckles of the forming wires. The fibres that get caught in the knuckles are mainly responsible for the peeling force of the fabric from the forming wires. The fibreweb is modelled as a porous layer, which is supported by forming wires. By correlating experimental ...

Experimental and numerical investigation of the peeling force required for the detachment of fabric from the forming belt in the hydroentanglement process

A study of the effects of the pore size on turbulence intensity and turbulence length scale in forced convection flow in porous media

A numerical study has been carried out to optimize the thermal performance of a pin-fin heat sink. A pin-fin heat sink placed horizontally in a channel is modeled as a hydraulically and thermally anisotropic porous medium. A uniform heat flux is prescribed at the bottom of the heat sink. Cold air is supplied from the top opening of the channel and exhausts to the channel outlet. Comprehensive numerical solutions are derived from the governing Navier-Stokes and energy equations, using the Brinkman-Forchheimer extended Darcy model and the local thermal non-equilibrium (LTNE) model for the region of heat sink. Results from this study indicate that the anisotropy in permeability and solid-phase effective thermal conductivity changes substantially with the variation of porosity. The pin-fin heat sinks considered in the present study show an optimum porosity of 0.75<eopt <0.95 for maximum thermal dissipation depending on the flow and geometric conditions. Generally, a thick pin-fin displays a lower optimum porosity.Copyright © 2002 by ASME

Optimization of Pin-Fin Heat Sinks Using the Two Medium Anisotropic Porous Model

A new mechanism for buoyancy driven convection in pulsating viscous flows: A theoretical study

The purpose of this paper is to develop a three-kinetic state model to investigate axonal cargo rerouting in a dendrite. It is assumed that axonal cargos are transported by kinesin motors; they can enter dendrites riding on plus-end-out microtubules (MTs). If this happens, cargos are rerouted by dissociating from these MTs and associating with minus-end-out MTs. The same kinesin motors then move axonal cargos out of the dendrite. The model predicts how far axonal cargos can penetrate into the dendrite, concentrations of various populations of axonal cargos, and cargo fluxes.

Andrey V. Kuznetsov

Papers

Experimental and numerical investigation of the peeling force required for the detachment of fabric from the forming belt in the hydroentanglement process

A study of the effects of the pore size on turbulence intensity and turbulence length scale in forced convection flow in porous media

Optimization of Pin-Fin Heat Sinks Using the Two Medium Anisotropic Porous Model

A new mechanism for buoyancy driven convection in pulsating viscous flows: A theoretical study

Numerical investigation of axonal cargo rerouting in a dendrite: A three kinetic state model