1 US companies are extending their leading position, with over half of the world's Top 100 listed companies coming from America. ( 2 China/HK now has the second most companies) with the UK in third place.
streamline. 1  A line that is parallel to the direction of flow of a fluid at a given instant. 2  The path of one particle in a flowing fluid. 3  A contour of a body constructed so as to offer minimum resistance to a fluid flow.
streamlines lines with a constant value of the stream function for the incompressible potential flow around a circular cylinder in a uniform onflow the stream function is defined for incompressible divergence free flows in two dimensions as well as in three dimensions with axisymmetry the flow velocity components can then be expressed as the derivatives of the scalar stream function