Heat Transfer Enhancement of a Flat Plate Boundary Layer Distributed by a Square Cylinder: Particle Image Velocimetry and Temperature-Sensitive Paint Measurements and Proper Orthogonal Decomposition Analysis

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GHASSABI G.; KAHROM M.

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Journal Paper

Paper Information

Journal: International Journal of Engineering Year:2018 | Volume:31 | Issue:11 (TRANSACTIONS B: Applications) Page(s): 1962-1971

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Title

Heat Transfer Enhancement of a Flat Plate Boundary Layer Distributed by a Square Cylinder: Particle Image Velocimetry and Temperature-Sensitive Paint Measurements and Proper Orthogonal Decomposition Analysis

Author(s)

GHASSABI G. | KAHROM M. | Issue Writer Certificate

Keywords

Heat transfer coefficient

Reverse flow

Reattachment point

Eigenmode

Abstract

The current empirical study was conducted to investigate the wall neighborhood impact on the twodimensional flow structure and heat transfer enhancement behind a square cylinder. The low-velocity open-circle wind tunnel was used to carry out the study tests considering the cylinder diameter (D)-based Reynolds number (ReD) of 5130. The selected items to compare were different gap height (G/D= 0. 0, 0. 1, 0. 2 and 0. 8). The flow field was measured using particle image velocimetry (PIV) with high image-density camera. The PIV-derived time-averaged quantities, including the streamline pattern, streamwise velocity fluctuation intensity, and reverse-flow intermittency, were examined for the flow past the square cylinder. The measurements of PIV were decomposed with the help of proper orthogonal decomposition (POD) approach that provides a proper view of the POD modes. To obtain the value of the heat transfer enhancement behind the square cylinder, the full-field temperature distributions of flat plate were measured through the temperature-sensitive paint (TSP) technique. Results showed that the maximum heat transfer enhancement was obtained at G/D=0. 2 due to the high unstable flow near the wall.

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APA: Copy

GHASSABI, G., & KAHROM, M.. (2018). Heat Transfer Enhancement of a Flat Plate Boundary Layer Distributed by a Square Cylinder: Particle Image Velocimetry and Temperature-Sensitive Paint Measurements and Proper Orthogonal Decomposition Analysis. INTERNATIONAL JOURNAL OF ENGINEERING, 31(11 (TRANSACTIONS B: Applications)), 1962-1971. SID. https://sid.ir/paper/724111/en

Vancouver: Copy

GHASSABI G., KAHROM M.. Heat Transfer Enhancement of a Flat Plate Boundary Layer Distributed by a Square Cylinder: Particle Image Velocimetry and Temperature-Sensitive Paint Measurements and Proper Orthogonal Decomposition Analysis. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2018;31(11 (TRANSACTIONS B: Applications)):1962-1971. Available from: https://sid.ir/paper/724111/en

IEEE: Copy

G. GHASSABI, and M. KAHROM, “Heat Transfer Enhancement of a Flat Plate Boundary Layer Distributed by a Square Cylinder: Particle Image Velocimetry and Temperature-Sensitive Paint Measurements and Proper Orthogonal Decomposition Analysis,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 31, no. 11 (TRANSACTIONS B: Applications), pp. 1962–1971, 2018, [Online]. Available: https://sid.ir/paper/724111/en

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