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Geometric quasi-similarity: Case of nozzles with quadrant-shaped inlet
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SYSNO ASEP 0461715 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Geometric quasi-similarity: Case of nozzles with quadrant-shaped inlet Author(s) Tesař, Václav (UT-L) RID Number of authors 1 Source Title Sensors and Actuators A - Physical. - : Elsevier - ISSN 0924-4247
Roč. 248, September (2016), s. 246-256Number of pages 11 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords nozzles ; local geometric similarity ; quasi-similarity ; reynolds number ; euler number ; quadrant nozzles Subject RIV BK - Fluid Dynamics R&D Projects GA13-23046S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 UT WOS 000383940500029 EID SCOPUS 84982129456 DOI 10.1016/j.sna.2016.07.008 Annotation Geometric similarity (i.e. difference only in size scale) is generally believed to be unavoidable condition without which it is impossible to apply the Buckingham p−theorem to two mutually related flowfields. Recently introduced idea of secondary invariants can by-pass this limitation and accept geometric quasi-similarity— i.e. cases with different values of ratios of geometric parameters. In this paper this new approach is demonstrated on an example case of a single-parameter family of nozzles which are mutually not fully geometrically similar. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2017
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