transport properties of fluids their correlation prediction & estimation

Transport Properties of Fluids [...]... Measurement of the Transport Properties of Fluids (Blackwell Scientific, Oxford) The volume describes the state of the art with respect to the instrumentation for the determination of the transport properties of fluids which has been employed in the acquisition of the data upon which many of the representations of the properties have been based However, the representations of the transport properties of fluids. .. definition of the levels of a hierarchy of correlation, prediction and estimation procedures that seek to generate the physical properties of fluids and their mixtures by means other than direct measurements These different methods are then expanded in the subsequent sections of the book and examples of their application given 17 18 C.A Nieto de Castro and W A Wakeham 3.2 Correlation Irrespective of any... Glasgow, UK C A NIETO DE CASTRO University of Lisbon, Portugal Accurate knowledge of transport properties of pure gases and liquids, and of their mixtures, is essential for the optimum design of the different items of chemical process plants, for determination of intermolecular potential energy functions and for development of accurate theories of transport in dense fluids A previous IUPAC volume, edited... result of a change in external conditions, or with the transport of mass, momentum or energy between different parts of a fluid which is not in a uniform state, are known as transport properties and form the subject of this volume The purpose of this chapter is to illustrate the importance of the transport properties of fluids in science and technology Technological Importance 7 2.2 Areas of technological... and the other on transport properties These two subcommittees are responsible for the critical evaluation of experimental data for the properties of fluids that lie in their respective areas and for the subsequent preparation and dissemination of internationally approved thermodynamic tables of the fluid state and representations of transport properties The Subcommittee on Transport Properties has discharged... generation of values of a transport property of a fluid or fluid mixture, by means of a method based upon a rigorous theory, in a region of state where direct measurements do not exist Undoubtedly the most effective substitute for direct measurement of the transport properties of fluids would be a complete, rigorous statistical-mechanical theory that enabled the calculation of the properties of a macroscopic... frequently limited by a lack of knowledge of the physical properties of the materials involved including the transport coefficients of the fluids Increasingly, there is a demand for improved safety of technological processes The term 'safety' may include environmental damage of various kinds as well as a direct threat to life and property Here, too, transport properties of fluids have a significant impact... state of a fluid that results from an external stimulus, for example the change of temperature of a mass of fluid that results from the input of a quantity of heat to it Such properties, which relate to differences between two states of thermodynamic equilibrium, are known as thermodynamic properties On the other hand, those properties which are concerned with the rate of change of the state of a fluid... within their estimated uncertainty and the correlation yields properties consistent with theoretical constraints The estimated uncertainty in the fitted data is then used as a guide to the likely error in the property arising from the use of the correlation Several examples of the use of this procedure for the transport properties of fluids will be found later in this book 3.3 Prediction The word 'prediction' ... the transport properties of fluids as a means of probing the forces between pairs of molecules Within the last twenty years, at least for the interactions of the monatomic, spherically symmetric inert gases, the transport properties have played a significant role in the elucidation of these forces As the density of the fluid is increased the free motion of molecules is increasingly dominated in the transport . Transport Properties of Fluids