Using the singularityseparating method to study how to decrease the pressure at the end of a tube
Abstract
The SingularitySeparating Method (SSM) is used to calculate the flow field in tubes with rapidly changing crosssection areas. How to decrease the pressure at the end of a tube is studied. The central principle behind SSM is that all discontinuity lines in the flow fields are considered as internal boundary lines. The difference scheme is only used in the subregions with continuous solution. Onesided difference scheme and boundary conditions are adopted on the boundaries and are linear or nonlinear equations. The solutions on the boundaries can be obtained by solving these equations. A software program for unsteady aerodynamic problems in one dimension is developed in order to deal with complicated SSM codes.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 November 1988
 Bibcode:
 1988STIN...9016158W
 Keywords:

 Flow Distribution;
 Pipes (Tubes);
 Pressure Reduction;
 Singularity (Mathematics);
 Software Engineering;
 Boundary Conditions;
 Boundary Layer Flow;
 Boundary Layer Separation;
 Pressure Effects;
 Pressure Vessel Design;
 Fluid Mechanics and Heat Transfer