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Efekat hrapavosti površine na magnetizovani pritisnut film kod sfere u sferičnom ležištu
aDepartment of Mathematics, Sardar Patel University, V.V. Nagar, Gujarat, India
bDepartment of Mathematics, Sardar Patel University, V.V.Nagar, Gujarat, India

e-adresasejal.patel85@yahoo.com
Ključne reči: sferično ležište; magnetizovani fluid; hrapavost; nosivost; poroznost
Sažetak
Cilj ovog rada je da analizira performanse magnetizovanog filma fluida pod pritiskom u slučaju sfere u hrapavom sferičnom ležištu. Model Nojringer-Rozensvajga je usvojen da se dobiju magnetno-hidrodinamičke jednačine. Model Kristensena i Tondera za stohastičko usrednjavanje je korišćen da se odredi efekat hrapavosti površine. Odgovarajuća jednačina Rejnoldsovog tipa je izvedena i rešena da se dobije raspodela pritiska koja vodi ka sračunavanju nosivosti ležaja. Rezultati predstavljeni u grafičkoj formi sugeriraju da nepoželjni efekat transverzalne površinske hrapavosti može biti minimizovan pozitivnim efektom podmazivanja ferofluidom, bar u slučaju negativno zakošene hrapavosti. Podjednako je važna uloga varijanse pri razmatranju karakteristika performansi.
Reference
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