The Effect of Long-Range Interactions on Development of Thermal Waves in the Radiation-Cooling Dispersed Flow

A. A. Safronov^a, A. A. Koroteev^b, N. I. Filatov^a, A. L. Grigoriev<sup>a

a</sup> Keldysh Research Center, ul. Onezhskaya 8, Moscow, 125438, Russia
^b Moscow Aviation Institute (National Research University), Volokolamskoe sh. 4, Moscow, 125993, Russia

Abstract: The influence of long-range interactions on the progress of heat waves in the radiationcooling disperse flow is considered. It is shown that the system exhibits oscillations attendant on the process of establishing an equilibrium temperature profile. The oscillation amplitude and the rate of oscillation damping are determined. The conditions under which the radiation cooling process can be unstable with respect to temperature field perturbations are revealed. The results of theoretical analysis and numerical calculation of the actual droplet flow are compared.

Keywords: disperse flows, radiative heat transfer, long-range interactions, instability.

MSC: 80A20

Received: 17.05.2018
Accepted: 16.07.2018

Language: English

DOI: 10.20537/nd180305

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