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Результаты исследований: Вклад в журнал › Статья › Рецензирование
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TY - JOUR
T1 - Model of Non-stationary Heat Transfer in a Supercritical Fluid
AU - Melkikh, A. v.
AU - Rutin, S. b.
AU - Skripov, P. v.
N1 - This study was supported by the Russian Science Foundation (Project No. 19-19-00115-P).
PY - 2023/6/1
Y1 - 2023/6/1
N2 - This paper continues the process of reconciling results obtained when investigating heat transfer in the supercritical liquid–vapor region inherent in stationary and fast processes. A relatively simple model of non-stationary heat transfer at the microscopic level in a non-idealized system is constructed. The model provides a possible explanation for the increase in the thermal resistance of a supercritical fluid (drop in heat conduction) at a not too great distance from the critical isobar on a scale of small characteristic times and sizes. The model is based on an explicit account of a significant decrease in thermal diffusivity when approaching the critical temperature of the substance. The simulation results are compared with experimental data on the rapid (lasting in units-tens of milliseconds) transfer of a compressed liquid to the supercritical temperature region along a supercritical isobar.
AB - This paper continues the process of reconciling results obtained when investigating heat transfer in the supercritical liquid–vapor region inherent in stationary and fast processes. A relatively simple model of non-stationary heat transfer at the microscopic level in a non-idealized system is constructed. The model provides a possible explanation for the increase in the thermal resistance of a supercritical fluid (drop in heat conduction) at a not too great distance from the critical isobar on a scale of small characteristic times and sizes. The model is based on an explicit account of a significant decrease in thermal diffusivity when approaching the critical temperature of the substance. The simulation results are compared with experimental data on the rapid (lasting in units-tens of milliseconds) transfer of a compressed liquid to the supercritical temperature region along a supercritical isobar.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85154018191
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000975188900001
U2 - 10.1007/s10765-023-03201-6
DO - 10.1007/s10765-023-03201-6
M3 - Article
VL - 44
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
SN - 0195-928X
IS - 6
M1 - 89
ER -
ID: 38489240