Numerical prediction of turbulent flow over a two-dimensional ridge

 
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Journal part (EN)
Scientific article (EN)
1991 (EN)
Numerical prediction of turbulent flow over a two-dimensional ridge (EN)
Bergeles, GC (EN)
Mouzakis, FN (EN)
Predictions are presented of the two-dimensional turbulent flow over a triangular ridge. The time-averaged Reynolds equations are written in an orthogonal curvilinear co-ordinate system and transformed to finite difference form after discretization in physical space. Turbulence is simulated by the two-equation k-epsilon model of turbulence. In the first part of the paper the basics of the numerical method are presented and in the second part comparisons are made between predictions and available laboratory data. Therefore the validity and reliability of the method as well as its flexibility in treating complex recirculating flows are assessed. Results of engineering significance are presented of the effect of the ridge slope on the length of the recirculation region and on the overspeed factor on top of the ridge. (EN)
journalArticle (EN)
Computer Science, Interdisciplinary Applications (EN)
Atmospheric Turbulence (EN)
Physics, Fluids & Plasmas (EN)
Flow of Water--Turbulent (EN)
Modelling-Mathematical (EN)
TURBULENT RECIRCULATING FLOW (EN)
Flow Over a Ridge (EN)
CURVILINEAR ORTHOGONAL COORDINATE SYSTEM (EN)
Recirculation (EN)
Hybrid Upwind Differencing Schemes (EN)
Aerodynamics--Turbulent (EN)
Turbulent Recirculating Flow (EN)
Complex Terrain (EN)
FINITE DIFFERENCE METHOD (EN)
HYBRID UPWIND DIFFERENCING SCHEME (EN)
Mathematics, Interdisciplinary Applications (EN)
Turbulent Flow (EN)
Turbulence Models (EN)
TURBULENCE MODEL (EN)
Flow of Fluids (EN)
Mechanics (EN)
Mathematical Techniques--Finite Difference Method (EN)
Mathematical Models (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
International Journal for Numerical Methods in Fluids (EN)
English
1991 (EN)
http://hdl.handle.net/123456789/10500
ISI:A1991EW88100005 (EN)
12 (EN)
287 (EN)
0271-2091 (EN)
3 (EN)
296 (EN)
JOHN WILEY & SONS LTD (EN)



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