On the oxide films effect on the thermal processes in the particle‐substrate system during plasma spraying

• Main Authors: G. Gromyko, G. Zayats
• Format: Article
• Language: English
• Published: Vilnius Gediminas Technical University 2002-06-01
• Series: Mathematical Modelling and Analysis
• Subjects: -
• Online Access: https://journals.vgtu.lt/index.php/MMA/article/view/9828
• ISSN: 1392-6292; 1648-3510

In the present paper one mathematical model of the thermal processes in the particle‐substrate system under plasma spraying is developed. The energy equation is solved for both particle and substrate regions using the adjoint conditions for the temperature. Main attention is paid to investigation of the temperature in contact of the particle with substrate. The oxide films effect on the surface substrate taking onto account thermal resistance of oxide is simulated. Numerical results for the heat transfer process and the effect of some important processing parameters have been discussed. Numerical algorithms were realized in the form of applied programs complex. Apie plonos plėvelės oksidaciją terminiame poveikyje pagrindinių dalelių sistemoje, kai turime plazminį purškimą Santrauka Šiame straipsnyje pateikiamas terminiu procesu matematinis modelis pagrindiniu detaliu sistemoje, kai turime plazmini purškima. Naudojant ribines temperatūros salygas abiem dalelems ir pagrindo sritims išspresta energijos lygtis. Svarbiausia tyrimu kryptis yra temperatūros poveikyje daleliu saveika su pagrindu. Modeliuojamas plonos pleveles oksidacijos poveikis pagrindo paviršiui, atsižvelgiant j šilumines oksidacijos pasipriešinima. Išnagrinetas keleto svarbiu parametru poveikis šiluminu procesu perdavime. Skaitiniai algoritmai realizuoti panaudojant keleta programu.  First Published Online: 14 Oct 2010