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Information Journal Paper

Title

EXPERIMENTAL STUDY IN THE EFFECT OF NOZZLE DIMENSIONS ON THE FLOW UNIFORMITY AND TURBULENCE INTENSITY

Pages

  5-8

Abstract

 In order to decrease construction cost of vertical wind tunnel, it is necessary to reduce the wind tunnel NOZZLE length. In this regard, it is adequate to reduce the ratio of inlet to outlet diameters of the NOZZLE and ratio of NOZZLE length to its inlet diameter. In addition, shifting of the inflection point of the NOZZLE curves to the flow upstream and reduction of the exit section of the NOZZLE can result in reduction in NOZZLE length. These modifications may cause change in the flow quality at the NOZZLE exit, which has to be studied. In this experimental study, by using hot wire, VELOCITY DISTRIBUTION and TURBULENCE INTENSITY at the NOZZLE exit have been investigated. The ratio of inlet to outlet TURBULENCE INTENSITY increases from 0.2 to 0.4, when the ratio of inlet to outlet area of the NOZZLE reduces from 12 to 6.25. Using the results, the NOZZLE length can be reduced by about 62% so that air quality in the short NOZZLE output is acceptable.

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    APA: Copy

    ARDEKANI, MOHAMMAD ALI. (2016). EXPERIMENTAL STUDY IN THE EFFECT OF NOZZLE DIMENSIONS ON THE FLOW UNIFORMITY AND TURBULENCE INTENSITY. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 48(1), 5-8. SID. https://sid.ir/paper/703897/en

    Vancouver: Copy

    ARDEKANI MOHAMMAD ALI. EXPERIMENTAL STUDY IN THE EFFECT OF NOZZLE DIMENSIONS ON THE FLOW UNIFORMITY AND TURBULENCE INTENSITY. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)[Internet]. 2016;48(1):5-8. Available from: https://sid.ir/paper/703897/en

    IEEE: Copy

    MOHAMMAD ALI ARDEKANI, “EXPERIMENTAL STUDY IN THE EFFECT OF NOZZLE DIMENSIONS ON THE FLOW UNIFORMITY AND TURBULENCE INTENSITY,” JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), vol. 48, no. 1, pp. 5–8, 2016, [Online]. Available: https://sid.ir/paper/703897/en

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