한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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단일 경사열선을 이용한 원형노즐의 유동해석

Analysis of the Flow of a Circular Nozzle using a slant Hot-Wire

  • 정의준 (울산대학교 기계자동차공학부) ;
  • 오상한 (울산대학교 기계자동차공학부)
  • 발행 : 2009.04.01
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초록

The program using $C/C^{++}$ which could calculate 3-D velocities from data of the flowfield obtained by a slant hot-wire has been developed. The characteristic of the exit flowfield of a circular nozzle with a curved surface was investigated. From the result, the inward-flow was verified at adjacent layers near the boundary of the exit flowfield of a circular nozzle in Id and outward-flow was sensed gradually from down-flow of Id. Similarity of the nondimensional velocity profile properlly could be obtained except near Id and the virtual origin reasonably could be obtained.

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참고문헌

  1. Hatta, K. and Nozaki, T., 1975, 'Two- Dimensional and Axisymmetric Jet Flows with Finite lnitial Cross Sections,' Bulletin of the JSME, Vol. 18, No. 18 pp. 349-357 https://doi.org/10.1299/jsme1958.18.349
  2. BradbuIy, L. J. S., 1976, 'The Structure of a Self-Preserving Turbulent Plane Jet,' J. of Fluid Mech., Vol. 23, part1, pp. 31-64 https://doi.org/10.1017/S0022112065001222
  3. Park, Sung Geun, 2003, 'A Study of the Flow Charateristics of the Circular Nozzle exit ergion,' M. S. Thesis, University of Ulsan
  4. Schmt, D. P. and Okiishi, T. H., 1977, 'Multistage Axial Flow turbomachine Wake Production, Trans -port, and Interaction,' AlAA J., Vol. 15, No. 8, Aug., pp. 1138-1145
  5. Shin, H. W., 1990, 'Hot-wirc Measurement Technique in Turbomachinery,' The 2nd KSME -JSME FLUID Engineering Conference Proceeding, Vol. 1, pp. 357-360
  6. Kim, D. S. and Ilan, Y. O., 1992, 'The Study over the Flow Characteristic of an Axisymmatric Free Jet in the Intial Region,' KSAS J., Vol .20， No. 1, pp. 95-104
  7. Wygnanski, I. and Fiedler, H., 1969、'Some Measurements in the Self Preserving Jet,' J. of Fluid Mech., Vol. 38, part3, pp. 577-612 https://doi.org/10.1017/S0022112069000358

피인용 문헌

  1. Numerical Analysis of the Flow Field of Circular Nozzle Exit Region vol.13, pp.6, 2010, https://doi.org/10.5293/KFMA.2010.13.6.013