Effect of the thermal boundary condition on the flat channel wall and axial thermal conductivity of liquid on heat transfer in a laminar pulsating flow in a quasi-stationary regime
Valueva E.P.1
1National Research University “Moscow Power Engineering Institute”, Moscow, Russia
Email: ep.valueva@gmail.com
The possibility of increasing the efficiency of heat transfer devices by imposing high-amplitude flowrate pulsations on the laminar flow has been investigated. The greatest heat transfer increase in the pulsating flow compared to that in the stationary flow occurs in the region of relatively low flow pulsation frequencies, i. e. in the quasi-stationary regime. The average Nusselt number over the channel length and time may increase by 50 % as compared to that in the stationary flow and by several times in the presence of influence of the liquid's axial thermal conductivity at low Peclet numbers and relatively short pipes. Keywords: heat transfer, pulsating quasi-stationary flow, axial thermal conductivity.
- E.P. Valueva, M.S. Purdin, Thermophys. Aeromech., 23 (6), 857 (2016). DOI: 10.1134/S0869864316060081
- E.P. Valueva, V.S. Zyukin, High Temp., 60 (1), 50 (2022). DOI: 10.1134/S0018151X22010254
- [E.P. Valueva, High Temp., 62 (4), 471 (2024). DOI: 10.1134/S0018151X25700051
- B.S. Petukhov, F.F. Tsvetkov, Inzh.-fiz. zhurn., 4 (3), 10 (1961). (in Russian)
- B.S. Petukhov Teploobmen i soprotivlenie pri laminarnom techenii zhidkosti v trubakh (Energiya, M., 1967), s. 196--208. (in Russian)
- D.K. Hennecke, Warme Stoffubertragung, 1 (3), 177 (1968). DOI: 10.1007/BF00751149
- C.-J. Hsu, Am. Inst. Chem. Eng. J., 17 (3), 732 (1971)
- T.V. Nguyen, Int. J. Heat Mass Transfer, 35 (7), 1733 (1992). DOI: 10.1016/0017-9310(92)90143-G
- R.K. Shah, A.L. London, Laminar flow forced convection in ducts (Academic Press, N.Y., 1978), p. 172, 181, 191, 193
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