Lemanov V. V.1, Lukashov V. V.1, Sharov K. A.1
1Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Email: lemanov@itp.nsc.ru
The results of an experimental study of heat transfer in an impinging air jet flowing from a long round channel in the range of Reynolds numbers 250-10000 are presented. Data on local heat transfer in the region of the flow stagnation point at large distances to the barrier (h/d = 20) were obtained. It is shown that a more localized heat flow corresponds to a laminar flow in a jet source compared to the case of a turbulent regime in the source. The maximum heat transfer is achieved not for the Poiseuille profile in the channel, but in the case of a transition regime with a small percentage of turbulent vortex structures. Keywords: impinging jet, heat transfer, laminar-turbulent transition, vortex structure.
- B.V. Rumyantsev, S.I. Pavlov, Tech. Phys. Lett., 46, 843 (2020). DOI: 10.1134/S1063785020090102
- J.F. de la Mora, J. Rosell-Llompart, J. Chem. Phys., 91, 2603 (1989). DOI: 10.1063/1.456969
- S.L. Anna, N. Bontoux, H.A. Stone, Appl. Phys. Lett., 82, 364 (2003). DOI: 10.1063/1.1537519
- B. Dash, J. Nanda, S.K. Rout, Heat Transfer, 51, 1406 (2022). DOI: 10.1002/htj.22357
- C.J. Chang, H. Chen, C. Gau, Nanoscale Microscale Thermophys. Eng., 17, 92 (2013). DOI: 10.1080/15567265.2012.761304
- B.N. Yudaev, M.S. Mikhailov, V.K. Savin, Teploobmen pri vzaimodeistvii strui s pregradami (Mashinostroenie, M., 1977) (in Russian)
- S.D. Barewar, M. Joshi, P.O. Sharma, P.S. Kalos, B. Bakthavatchalam, S.S. Chougule, K. Habib, S.K. Saha, Therm. Sci. Eng. Prog., 39, 101697 (2023). DOI: 10.1016/j.tsep.2023.101697
- V.V. Lemanov, V.I. Terekhov, High Temp., 54, 454 (2016). DOI: 10.1134/S0018151X1603010X
- S.Z. Sapozhnikov, V.Yu. Mityakov, A.V. Mityakov, The science and practice of heat flux measurement (Springer Nature, 2020)
- V.V. Lemanov, V.V. Lukashov, K.A. Sharov, Fluid Dyn., 55, 768 (2020). DOI: 10.1134/S0015462820060087
- K. Avila, D. Moxey, A. Lozar, M. Avila, D. Barkley, B. Hof, Science, 333, 192 (2011). DOI: 10.1126/science.1203223
- C.M. Ho, P. Huerre, Annu. Rev. Fluid Mech., 16, 365 (1984). DOI: 10.1146/annurev.fl.16.010184.002053
- A.S. Ginevsky, Ye.V. Vlasov, R.K. Karavosov, Acoustic control of turbulent jets (Springer, Berlin-Heidelberg, 2004)
- V.V. Lemanov, V.I. Terekhov, K.A. Sharov, A.A. Shumeiko, Tech. Phys. Lett., 39, 421 (2013). DOI: 10.1134/S1063785013050064
- V.M. Aniskin, V.V. Lemanov, N.A. Maslov, K.A. Mukhin, V.I. Terekhov, K.A. Sharov, Tech. Phys. Lett., 41, 46 (2015). DOI: 10.1134/S1063785015010034
- C. Bogey, C. Bailly, Phys. Fluids, 18, 065101 (2006). DOI: 10.1063/1.2204060
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