REYNOLDS SONI BO‘YICHA ISHQALANISH KOEFFITSENTINING O‘ZGARISHINI TAJRIBA VA SONLI MODELLASH NATIJALARINI SOLISHTIRISH
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Abstract:
Ushbu ishda quvurdagi turbulent oqim uchun ishqalanish koeffitsenti λ ning Reynolds soni (Re) ga bog‘liq holda o‘zgarishi tajriba natijalari va sonli modellashtirish orqali solishtirildi. 400–1∙10⁶ oralig‘idagi Reynolds sonlari uchun lg(100λ) qiymatlari, tajriba nuqtalari va sonli model egri chizig‘i olingan. O‘tish rejimida sezilarli tafovutlar kuzatildi, yuqori Reynolds sonlarida esa natijalar mosligi kuchaydi. Nisbiy xatolikning Re oshishi bilan kamayishi sonli modelning turbulent rejimda yuqori aniqlikda ishlashini ko‘rsatdi. Tadqiqot ishqalanish koeffitsentini aniqlashda sonli usullarning qo‘llanish imkoniyatlarini baholashga yordam beradi.
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