Single-pixel PIV measurements of high-re turbulent pipe flow

Jerry Westerweel; Sudarshan Sridharan; Gosse Oldenziel

Single-pixel PIV measurements of high-re turbulent pipe flow

Jerry Westerweel, Sudarshan Sridharan, Gosse Oldenziel

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Abstract

In this paper we present PIV measurements of turbulent pipe flow at Reynolds numbers between 3.4×10⁵ and 6.9×10⁵. We apply a so-called 'single-pixel correlation' that yields a superior spatial resolution (Westerweel et al., 2004). We use the location and shape of the averaged correlation peak to obtain the mean velocity and normal and Reynolds stresses (Scharnowski et al., 2012). A novel aspect of the single-pixel correlation approach is the extension to determine the spatial correlation of the velocity fluctuations. In this paper we present the results for Re = 4.98×10⁵, corresponding to a shear Reynolds number Re_τ = 10.3×10³, with a spatial resolution of ∆y⁺ = 18.

Original language	English
Number of pages	5
Publication status	Published - 2022
Event	12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022 - Osaka, Virtual, Japan Duration: 19 Jul 2022 → 22 Jul 2022

Conference

Conference	12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022
Country/Territory	Japan
City	Osaka, Virtual
Period	19/07/22 → 22/07/22

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title = "Single-pixel PIV measurements of high-re turbulent pipe flow",

abstract = "In this paper we present PIV measurements of turbulent pipe flow at Reynolds numbers between 3.4×105 and 6.9×105. We apply a so-called 'single-pixel correlation' that yields a superior spatial resolution (Westerweel et al., 2004). We use the location and shape of the averaged correlation peak to obtain the mean velocity and normal and Reynolds stresses (Scharnowski et al., 2012). A novel aspect of the single-pixel correlation approach is the extension to determine the spatial correlation of the velocity fluctuations. In this paper we present the results for Re = 4.98×105, corresponding to a shear Reynolds number Reτ = 10.3×103, with a spatial resolution of ∆y+ = 18.",

author = "Jerry Westerweel and Sudarshan Sridharan and Gosse Oldenziel",

year = "2022",

language = "English",

note = "12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022 ; Conference date: 19-07-2022 Through 22-07-2022",

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TY - CONF

T1 - Single-pixel PIV measurements of high-re turbulent pipe flow

AU - Westerweel, Jerry

AU - Sridharan, Sudarshan

AU - Oldenziel, Gosse

PY - 2022

Y1 - 2022

N2 - In this paper we present PIV measurements of turbulent pipe flow at Reynolds numbers between 3.4×105 and 6.9×105. We apply a so-called 'single-pixel correlation' that yields a superior spatial resolution (Westerweel et al., 2004). We use the location and shape of the averaged correlation peak to obtain the mean velocity and normal and Reynolds stresses (Scharnowski et al., 2012). A novel aspect of the single-pixel correlation approach is the extension to determine the spatial correlation of the velocity fluctuations. In this paper we present the results for Re = 4.98×105, corresponding to a shear Reynolds number Reτ = 10.3×103, with a spatial resolution of ∆y+ = 18.

AB - In this paper we present PIV measurements of turbulent pipe flow at Reynolds numbers between 3.4×105 and 6.9×105. We apply a so-called 'single-pixel correlation' that yields a superior spatial resolution (Westerweel et al., 2004). We use the location and shape of the averaged correlation peak to obtain the mean velocity and normal and Reynolds stresses (Scharnowski et al., 2012). A novel aspect of the single-pixel correlation approach is the extension to determine the spatial correlation of the velocity fluctuations. In this paper we present the results for Re = 4.98×105, corresponding to a shear Reynolds number Reτ = 10.3×103, with a spatial resolution of ∆y+ = 18.

UR - http://www.scopus.com/inward/record.url?scp=85143843970&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85143843970

T2 - 12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022

Y2 - 19 July 2022 through 22 July 2022

ER -

Single-pixel PIV measurements of high-re turbulent pipe flow

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