Viscosity

Viscosity

Author: Y. S. Touloukian

Publisher: Springer

Published: 1975

Total Pages: 822

ISBN-13:

DOWNLOAD EBOOK

that about 100 journals are required to yield fifty In 1957, the Thermophysical Properties Research Center (TPRC) of Purdue University, under the percent. But that other fifty percent! It is scattered leadership of its founder, Professor Y. S. Touloukian, through more than 3500 journals and other docu began to develop a coordinated experimental, ments, often items not readily identifiable or ob theoretical, and literature review program covering tainable. Over 75,000 references are now in the files. a set of properties of great importance to science and technology. Over the years, this program has grown Thus, the man who wants to use existing data, steadily, producing bibliographies, data compila rather than make new measurements himself, faces tions and recommendations, experimental measure a long and costly task if he wants to assure himself ments, and other output. The series of volumes for that he has found all the relevant results. More often which these remarks constitute a foreword is one of than not, a search for data stops after one or two these many important products. These volumes are a results are found-or after the searcher decides he monumental accomplishment in themselves, re has spent enough time looking. Now with the quiring for their production the combined knowledge appearance of these volumes, the scientist or engineer who needs these kinds of data can consider himself and skills of dozens of dedicated specialists. The Thermophysical Properties Research Center de very fortunate.


Estimated Viscosities and Thermal Conductivities of Gases at High Temperatures

Estimated Viscosities and Thermal Conductivities of Gases at High Temperatures

Author: Roger A. Svehla

Publisher:

Published: 1963

Total Pages: 132

ISBN-13:

DOWNLOAD EBOOK

Viscosities and thermal conductivities, suitable for heat-transfer calculations, were estimated for about 200 gases in the ground state from 100° to 5000° K and 1-atm pressure. Free radicals were included, but excited states and ions were not. Calculations for the transport coefficients were based upon the Lennard-Jones (12-6) potential for all gases. Intermolecular force constants for this potential were obtained from experimental viscosity data or were estimated when data were not available. The same set of constants was used to calculate both viscosity and conductivity. An Eucken-type correction for exchange between internal and translational energies was made for thermal conductivities of polyatomic gases.