Numerical simulation of the effect of inclination angle and height of step in a backward facing step filled with nanofluid
Issakhov A. Rakhymzhanova Z. Abylkassymova A.
December 2024Springer Science and Business Media Deutschland GmbH
European Physical Journal Plus
2024#139Issue 12
Since high heat generation is one of the main factors that limits the ability of electrical appliances, in this paper investigated the effect of step height and duct angle on flow and heat transfer characteristics in a reverse step model. The paper presents a numerical simulation of 10 variants of the main problem with two different step heights (2.4 and 4.8 mm) and different slope angles (0° < γ < 180°). Al2O3/H2O nanofluid with a concentration of 1% was chosen as the medium. The nanofluid entered the channel 360 mm long at Re = 100. The bottom wall behind the stage maintained a constant heat flux q = 200W/m2. The upper wall maintained a temperature of 293 K. A comparative analysis of the results of velocity profiles u and v, temperature and Nusselt number was carried out. The used mathematical model and numerical algorithm were validated on the test problem of other authors.
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Kazakh British Technical University, Almaty, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
International Information Technology University, Almaty, Kazakhstan
Kazakh British Technical University
Al-Farabi Kazakh National University
International Information Technology University
10 лет помогаем публиковать статьи Международный издатель
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