Fluid Dynamic Problems Awaiting Solution

It is recommended that fluid dynamic problems related to specific phenomena of pulsating flow should be dealt with on the basis of non-dimensional parameters. Part I presents a survey of essential parameters. Recent research on self-induced pulsations and forced sinusoidal pulsating flow is reviewed. Investigation of the experimental results of these studies reveal crucial parameters, their correct choice and design. These few parameters are recommended as basic tools of analysis of more complex problems which are encountered in fluid flow measurement.In Part II peculiarities in flow and the behaviour of metering devices such as orifices, Venturis, or variable area flow meters are scrutinized. Some of these features, even under steady flow conditions, are not yet well understood. They should be fully explored in future studies as they may explain residual errors under pulsating flow conditions. Suggestions for future research are mainly concerned with flow conditions in the pipe line upstream of the meter...