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TVT, 2018, Volume 56, Issue 3, Pages 417–423 (Mi tvt10824)  

Heat and Mass Transfer and Physical Gasdynamics

Heat transfer in subsonic flows of dissociated nitrogen: HF plasmatron experiment and numerical simulation

A. F. Kolesnikov, A. N. Gordeev, S. A. Vasil'evskii

Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences, Moscow

Abstract: Experiments on heat transfer in subsonic jets of dissociated nitrogen have been carried out on a IPG-4 induction plasmatron. The heat fluxes to copper, stainless steel, nickel, graphite, and quartz surfaces at the stagnation point of a water-cooled cylindrical flat-faced model $20$ mm in diameter and dynamic pressures have been measured at a pressure of $50$ hPa in the test chamber and a power of $35$$65$ kW of the HF generator. The experiments showed the influence of surface catalytic properties on the heat flux in relation to the nitrogen atom recombination. In the conditions of the experiments, a numerical simulation of nitrogen plasma flows in the discharge channel of plasmatron and the subsonic dissociated nitrogen jet flow around the cylindrical model has been carried out. The experimental and calculated data on heat fluxes to cooled copper, stainless steel, nickel, graphite, and quartz surfaces are compared. The quantitative catalyticity scale of the studied materials in relation to the heterogeneous recombination of nitrogen atoms is established.

Funding Agency Grant Number
Ministry of Education and Science of the Russian Federation -17-117021310383-2
Russian Foundation for Basic Research 17-01-00054
This study was carried out within the state assignment AAAA-A17-117021310383-2, supported in part by the Russian Foundation for Basic Research, project no. 17-01-00054.


DOI: https://doi.org/10.7868/S0040364418030146

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English version:
High Temperature, 2018, 56:3, 398–403

Bibliographic databases:

Document Type: Article
UDC: 533.6.011.8
Received: 20.02.2017
Accepted:28.06.2017

Citation: A. F. Kolesnikov, A. N. Gordeev, S. A. Vasil'evskii, “Heat transfer in subsonic flows of dissociated nitrogen: HF plasmatron experiment and numerical simulation”, TVT, 56:3 (2018), 417–423; High Temperature, 56:3 (2018), 398–403

Citation in format AMSBIB
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