An aspect of the 'hydraulics' of the unsteady motions of a fluid
Abstract
Problems involving unsteady fluid flows in ducts of complex shape are commonly solved with the aid of a onedimensional approximating scheme where the flow characteristics to be determined are the mean crosssectional values of the flow parameters. The parameters of onedimensional flow on either side of a sharp bend or at a bifurcation must then be linked by certain relations. In the case of steady motions, these (wellknown) relations are defined in terms of hydraulic resistance coefficients. For unsteady motions, the problem of obtaining such relations is far more complex. Possible approaches to the solution of the latter problem are examined.
 Publication:

Selected Problems in Applied Mechanics
 Pub Date:
 1974
 Bibcode:
 1974spam.work..295G
 Keywords:

 Ducted Flow;
 Hydraulics;
 Incompressible Fluids;
 Unsteady Flow;
 Corner Flow;
 Flow Equations;
 Flow Resistance;
 One Dimensional Flow;
 Steady Flow;
 Fluid Mechanics and Heat Transfer