Dairesel bir kanalda soğutma şartları altında MHD sıvı lityum akışın sayısal olarak incelenmesi

Yıl 2018, Cilt: 24 Sayı: 1, 30 - 35, 27.02.2018

Murat Erdem , Müjdat Fırat Yasin Varol

Öz

Bu
çalışmada, lityum sıvısı dıştan manyetik alan indüksiyonuna maruz bırakılan üç
boyutlu dairesel bir kanalda sayısal olarak incelenmiştir. Manyetik alan,
kanala akış yönüne dik olarak uygulanmıştır. Re=2250 ve manyetik alan kuvveti
sırasıyla 0T, 0.04T, 0.08T ve 0.12T olarak seçilmiştir. Bunun yanında, akışkan
sıcaklığı 473.15 K iken cidar sıcaklığı 373.15 K’dir. Hesaplamalar ANSYS-Fluent
ticari yazılımı ile gerçekleştirilmiştir. Manyetik alanın akışkan hızı, basınç
ve sıcaklık üzerindeki etkileri grafiksel olarak sunulmuştur. Manyetik alan
etkisinin akışkan hızını azaltırken, basıncı arttırdığı gözlemlenmiştir. Ayrıca,
manyetik alan boru uzunluğu boyunca kanalın farklı bölgelerinde, sıcaklığı
farklı şekilde etkilediği gözlemlenmiştir.

Anahtar Kelimeler

MHD, Manyeto-hidrodinamik, Zorlanmış taşınım, Sıvı lityum soğutma, Hesaplamalı akışkanlar dinamiği (HAD)

Numerically investigation of MHD liquid lithium flow under cooling conditions in a circular channel

Öz

In
this study, the lithium fluid was numerically analyzed in a three-dimensional
circular channel exposed to external magnetic field induction. The magnetic
field is applied perpendicular to the flow direction of the channel. Re=2250
and the magnetic field strength was selected as 0T, 0.04T, 0.08T and 0.12T,
respectively. Besides, while the fluid temperature is 473.15 K, the wall
temperature is 373.15 K. Calculations were performed with ANSYS-Fluent
commercial software. The effect of the magnetic field on the fluid velocity, pressure
and temperature has presented graphically. While the magnetic field seriously
has reduced the fluid velocity, the pressure has observed to increase. Also, it
has been observed that the magnetic field affects the temperature differently
in different regions of the channel along the pipe length.

Anahtar Kelimeler

MHD, Magneto-hydrodynamics, Forced convection, Liquid lithium cooling, Computational fluid dynamic (CFD)

Kaynakça

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