Heat and mass transfer from a horizontal slender cylinder with a magnetic field effect

Yatay ince bir silindir üzerinden daimi rejimde manyetik alanda, zorlanmış ısı ve kütle transferi problemi nümerik olarak çalışılmıştır. Uniform manyetik alan silindire dik olarak uygulanmıştır. Akışı yöneten non-lineer kısmi diferansiyel denklemler, benzerlik yöntemiyle sınır tabaka denklemlerine dönüştürülmüş ve Keller-box yöntemiyle çözülmüştür. Çaprazlık parametresi, manyetik alan parametresi, Prandtl ve Schmidt sayısları elde edilen denklemlerdeki temel parametrelerdir. Bu parametrelerin farklı değerleri için lokal sürtünme, local ısı ve local kütle transferi parametreleri elde edilmiştir. Metodolojinin doğruluğu literatürdeki mevcut sonuçlarla karşılaştırılmış ve iyi bir uyumun olduğu görülmüştür. Sonuç olarak, manyetik alan parametresi Mn ve çaprazlık parametresinin artmasıyla lokal sürtünme, lokal ısı transferi ve lokal kütle transfer parametrelerinin arttığı tespit edilmiştir.

Yatay ince bir silindir üzerinden olan ısı ve kütle transferine manyetik alanın etkisi

The problem of steady laminar magnetohydrodynamic (MHD) forced convective heat and mass transfer about a horizontal slender cylinder is studied numerically. A uniform magnetic field is applied perpendicular to the cylinder. The nonlinear partial differential equations governing the flow are transformed into the similar boundary layer equations, which are then solved numerically using the Keller box method. The transverse curvature parameter, the magnetic parameter, the Prandtl number and the Schmidt number are the main parameters. For various values of these parameters, the local skin friction, heat transfer and mass transfer parameters are obtained. The validity of the methodology is checked by comparing the results with those available in the open literature and a fairly good agreement is observed. Finally, it is determined that the local skin friction coefficient, the local heat transfer coefficient and the local mass transfer coefficient increase with an increase the magnetic parameter Mn and transverse curvature parameter.

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