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Tools for parameter studies in fluid dynamics
Author(s) -
Yeckel Andrew
Publication year - 1998
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/(sici)1097-0363(19981130)28:8<1199::aid-fld768>3.0.co;2-x
Subject(s) - throughflow , computational fluid dynamics , fluid dynamics , flow (mathematics) , vector field , computer science , steady state (chemistry) , field (mathematics) , mechanics , mathematics , physics , chemistry , pure mathematics
Several computational methods to aid analysis of steady state problems in fluid dynamics are demonstrated. These include tracking of selected flow states; computing linearized parameter sensitivities and frequency response to forced parameter perturbations; and determining the topology of a flow by systematically locating critical points of the velocity vector field. The primary concern addressed by these methods is analysis of collections of steady state solutions obtained through parameter studies, rather than analysis of an isolated solution. In this regard, these methods are intended to answer the criticism sometimes made that solutions obtained by numerical methods do not lend insight to parameter effects so easily as do traditional methods. Dip coating, slot coating, and a prototype of forward roll coating (a lid‐driven cavity with throughflow) are used to demonstrate application of the methods. © 1998 John Wiley & Sons, Ltd.