Abstract
This paper deals with flow around a bluff body of hyperboloid shape. It combines results gathered in the course of research by means of Particle Image Velocimetry (PIV). The experiments were carried out by means of low-frequency 2D PIV and the Reynolds number was 43 000.
Highlights
In this contribution, research in mechanics of fluids field, that developed from experimental testing for civil engineering, will be presented
The object of measurement consisted of four models of hyperboloid cooling towers, whose centres were located in the corners of the square, and were tested in a wind tunnel designed for civil engineering experiments
The experimental part accomplished so far was provided by means of 2D Particle Image Velocimetry (PIV), being the quickest tool for instant viewing of the problem
Summary
Research in mechanics of fluids field, that developed from experimental testing for civil engineering, will be presented. The object of measurement consisted of four models of hyperboloid cooling towers, whose centres were located in the corners of the square, and were tested in a wind tunnel designed for civil engineering experiments. According to the original measurement plans and requests from the industrial partner, the pressures inside and outside the model were measured and calculated by means of mathematical modelling and numerical calculation. These two attitudes were compared and evaluated. The aim of this work is to test possibilities of low frequency 2D PIV for the measurement of 3D structures of flow field and to identify areas of later research by means of hot wire anemometry and numerical calculation
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