# Engineering Mechanics

Proceedings Vol. 22 (2016)

ENGINEERING MECHANICS 2016

22nd INTERNATIONAL CONFERENCE
May 9 – 12, 2016, Svratka, Czech Republic

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Editors: Igor Zolotarev and Vojtěch Radolf

ISBN 978-80-87012-59-8 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

INVARIANTS OF SIMPLE NOZZLES

Tesař V.
pages 583 - 586, full text

Paper presents a new concept: invariants of second order. The idea bypasses the necessity of geometric similarity (allowing only scaling up or down) in working with dimensionless criteria parameters. Practical aspects of the approach are demonstrated on family of simple nozzles, with different lengths of exit channels. While fluid flow in each nozzle is characterised by its primary invariant, the family as a whole is characterised by additional two secondary invariants.

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# Engineering Mechanics

#test International Conference

Proceedings Vol. 22 (2016)

ENGINEERING MECHANICS 2016