THEORETICAL AND EXPERIMENTAL STUDY ON FLUID FLOW IN VALVE CHANNELS PART II - PRESSURE LOSS DATA

摘要

As previously pointed out frictionless incompressible jet flow(with separation at sharp edges) is essential to the present issues, appropriate data have been collected and produced by the author. These data are partly based on theoretical jet flow solutions partly on experimental results which have been gained with sufficiently thin boundary layers. In some cases pressure recovery according to momentum theorem(sudden enlargement) is included in these data. All the data taken from literature were checked carefully and had to he intensely processed to fit into the required context. Data based on theoretical jet flow solutions are marked by "Th", data based on experiments by "Ex". The latter are expected to be within a ±10% margin to the theoretical jet flow solution (not yet available in literature to the knowledge of the author). Data which include calculated pressure recovery(by momentum theorem) is marked by "Mo". In special cases data on force coefficients are also presented.