Quantum mechanics

Exact solutions in general relativity

Slip (aerodynamics)

No-slip condition

Geotechnical engineering

Boundary value problem

Slipping

Matrix similarity

Geology

Porosity

Fluid dynamics

Thermodynamics

Boundary layer

Physics

Nonlinear system

Similarity solution

Mathematics

Flow (mathematics)

Mathematical analysis

Geometry

Porous medium

Partial differential equation

Mechanics

Mixed boundary condition

Fluids

The viscous fluid flow past a semi-infinite porous solid, which is proportionally sheared at one boundary with the possibility of the fluid slipping according to Navier’s slip or second order slip, is considered here. Such an assumption takes into consideration several of the boundary conditions used in the literature, and is a generalization of them. Upon introducing a similarity transformation, the governing equations for the problem under consideration reduces to a system of nonlinear partial differential equations. Interestingly, we were able to obtain an exact analytical solution for the velocity, though the equation is nonlinear. The flow through the porous solid is assumed to obey the Brinkman equation, and is considered relevant to several applications.

A New Exact Solution for the Flow of a Fluid through Porous Media for a Variety of Boundary Conditions