Pamukkale Univ Muh Bilim Derg. 2018; 24(1): 30-35 | DOI: 10.5505/pajes.2017.27146

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

Murat Erdem¹, Müjdat Fýrat², Yasin Varol^3
1Department of Elecrical and Energy, Firat University, Elazig, Turkey
²Department of Automotive Education, Technical Education Faculty, Firat University, Elazig, Turkey
³Department of Automotive Engineering, Technology Faculty, Firat University, Elazig, Turkey

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.

Keywords: MHD, magneto-hydrodynamics, forced convection, liquid lithium cooling, computational fluid dynamic (CFD)

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Dairesel bir kanalda soðutma þartlarý altýnda MHD sývý lityum akýþýn sayýsal olarak incelenmesi

Murat Erdem¹, Müjdat Fýrat², Yasin Varol^3
1Fýrat Üniversitesi Teknik Bilimler Meslek Yüksek Okulu, Elektrik ve Enerji Bölümü, Elazýð
²Fýrat Üniversitesi Teknik Eðitim Fakültesi, Otomotiv Öðretmenlði Bölümü, Elazýð
³Fýrat Üniversitesi Teknoloji Fakültesi, Otomotiv Mühendisliði Bölümü, Elazýð

Bu çalýþmada, lityum sývýsý dýþtan manyetik alan indüksiyonuna maruz býrakýlan üç boyutlu dairesel bir kanalda sayýsal olarak incelenmiþtir. Manyetik alan, kanala akýþ yönüne dik olarak uygulanmýþtýr. Re = 2250 ve manyetik alan kuvveti sýrasýyla 0T, 0.04T, 0.08T ve 0.12T olarak seçilmiþtir. Bunun yanýnda, akýþkan sýcaklýðý 473.15 K iken cidar sýcaklýðý 373.15 K dir. Hesaplamalar ANSYS-Fluent ticari yazýlýmý ile gerçekleþtirilmiþtir. Manyetik alanýn akýþkan hýzý, basýnç ve sýcaklýk üzerindeki etkileri grafiksel olarak sunulmuþtur. Manyetik alan etkisinin akýþkan hýzýný azaltýrken, basýncý arttýrdýðý gözlemlenmiþtir. Ayrýca, manyetik alan boru uzunluðu boyunca kanalýn farklý bölgelerinde, sýcaklýðý farklý bir þekilde etkilediði gözlemlenmiþtir.

Anahtar Kelimeler: MHD, manyeto-hidrodinamik, zorlanmýþ taþýným, sývý lityum soðutma, hesaplamalý akýþkanlar dinamiði (HAD)

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