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3D Investigations of Heat Exchange and Hydrodynamics in Channels with Modified Double V-Shaped Dimples and Hemispherical Protrusions between Them

Abstract

As a result of 3D calculation in the ANSYS CFX, the numerical investigation was carried out of local and averaged heat transfer coefficients, hydrodynamic characteristics of cooling channels with two V-shaped dimples with hemispherical protrusions between them for the case of its location by in-line and staggered orders; and also with two V-shaped dimples and hemispherical protrusions between them and twin dimples on the two vertexes of V-shaped dimples.

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REFERENCES

  1. Gorelov, Yu.G. and Nazarov, A.A., 3D-Comparative Investigations of Heat Exchange and Friction in the Channels with Modified V-shaped Dimples and Convexities, Tridy 22i Shkoly-seminara molodykh uchenykh i spetsialistov pod rukovodstvom akad. RAN A.I. Leont’eva “Problemy gazodinamiki i teplomassoobmena v energeticheskikh ustanovkakh” (Proc. of the XXII School-Seminar of Young Scientists and Specialists under supervision of Professor A.I. Leontiev, Academician of the Russian Academy of Science “Problems of Gas Dynamics, Heat and Mass Transfer in Power Plants”), Moscow: Printed salon SHANS, 2019, pp. 61–65.

    Google Scholar 

  2. Gorelov, Yu.G., 3D Investigations of Heat Exchange and Hydrodynamics in the Channels with Different Combinations of Ribs and Oval Trench Dimples, Izv. Vuz. Av. Tekhnika, 2020, vol. 63, no. 1, pp. 126–133 [Russian Aeronautics (Engl. Transl.), vol. 63, no. 1, pp. 137–146].

    Google Scholar 

  3. Wright, L.M. and Gohardani, A.S., Effect of Turbulator Width and Spacing on the Thermal Performance of Angled Ribs in a Rectangular Channel (AR = 3:1), Proc. of the ASME 2008 International Mechanical Engineering Congress and Exposition. Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Part B, Boston, 2008, vol. 10, pp. 1103–1113.

    Google Scholar 

  4. Wright, L.M. and Gohardani, A.S., Effect of the Coolant Ejection in Rectangular and Trapezoidal Trailing-Edge Cooling Passages, J. of Thermophysics and Heat Transfer, 2009, vol. 23, no. 2, pp. 316–326.

    Article  Google Scholar 

  5. Popov, I.A., Shchelchkov, A.V., and Yarkaev, M.Z., Thermal and Hydraulic Characteristics of Discretely Rough Tubes at Transient Flow Regimes, Izv. Vuz. Av. Tekhnika, 2013, vol. 56, no. 1, pp. 61–65 [Russian Aeronautics (Engl. Transl.), vol. 56, no. 1, pp. 83–89].

    Google Scholar 

  6. Jordan, C.N. and Wright, L.M., Heat Transfer Enhancement in a Rectangular (AR = 3:1) Channel with V-shaped Dimples, Proc. of ASME Turbo Expo 2011, Vancouver, 2011, vol. 5, paper no. GT2011-46128, pp. 1505–1516.

    Google Scholar 

  7. Han, J.C., Park, J.S., and Lei, C.K., Heat Transfer Enhancement in Channels with Turbulence Promoters, ASME J. Engineering for Gas Turbines and Power, 1985, vol. 107(3), pp. 628–635.

    Article  Google Scholar 

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Correspondence to Yu. G. Gorelov.

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Gorelov, Y.G. 3D Investigations of Heat Exchange and Hydrodynamics in Channels with Modified Double V-Shaped Dimples and Hemispherical Protrusions between Them. Russ. Aeronaut. 64, 702–710 (2021). https://doi.org/10.3103/S1068799821040152

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  • DOI: https://doi.org/10.3103/S1068799821040152

Keywords

  • double V-shaped dimples with hemispherical protrusions between them
  • thermal performance
  • heat transfer coefficients