Open AccessRANS-based design of experimental flow model for investigation of complex curved turbulent wakes subjected to adverse pressure gradient
Author(s) -
Ekaterina Guseva,
D. A. Nikulin,
Andrey Travin,
Rolf Radespiel,
Peter Scholz
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012203
Subject(s) - wake , adverse pressure gradient , reynolds averaged navier–stokes equations , turbulence , pressure gradient , mechanics , flow (mathematics) , curvature , computation , flow separation , geometry , physics , aerospace engineering , engineering , computer science , mathematics , algorithm
Results are presented of a series of RANS computations aimed at creating a new experimental flow model of a curved turbulent wake evolving under adverse pressure gradient. In the course of the computations, key geometric parameters of the model (the angle of attack of a flat plate generating the wake and the shape and the angles of attack of liner foils creating the pressure gradient) were varied in a wide range. The purpose was to find the parameters ensuring desirable features of the flow, namely, a considerable wake curvature and its strong deceleration leading to formation of a large stagnation or even a reversal flow region, on the one hand, and no flow separation either from the flat plate or from the surfaces of the liner foils, on the other hand. As a result, the design satisfying all these demands has been found. This design will be implemented and studied in the framework of recently launched joint German-Russian project “Complex Wake Flows” which presents a continuation of an earlier similar project devoted to symmetric wakes.