研究了在磁場和熱輻射作用下,非牛頓納米流體在兩個無限大的垂直平板間流動的自然對流換熱和流動特性。首先,采用相似變換法,將偏微分形式的動量和能量守恒方程轉(zhuǎn)化為特殊邊界條件下的非線性常微分方程組。應用Galerkin方法（GM）,獲得非線性常微分方程組的解析解,并給出了非線性常微分方程組的數(shù)值解。對比分析解析解和數(shù)值解,驗證了模型的準確性、精度和可靠性。最后,綜合考慮了磁場、輻射參數(shù)和納米流體體積分數(shù)等參數(shù)對速度、摩擦阻力系數(shù)和Nusselt數(shù)分布的影響。結(jié)果表明,隨著磁力作用的增大,速度場、摩擦阻力系數(shù)和熱性能下降。輻射參數(shù)雖然對增強的速度場影響不大,但降低了摩擦阻力系和Nusselt數(shù)的影響。 

【文章來源】：Journal of Central South University. 2019,26(05)

【文章頁數(shù)】：12 頁

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