TY  - JOUR
T1  - Yüksek derecede kurum üreten 2B Gazyağı/Hava difüzyon alevleri üzerinde diferansiyel yayılımın ve basıncın etkileri
TT  - Differential diffusion and pressure effects on heavily sooting 2D Kerosene/Air diffusion flames
AU  - Korucu, Ayşe
AU  - Miller, Richard
PY  - 2023
DA  - August
Y2  - 2023
DO  - 10.17341/gazimmfd.1153044
JF  - Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
JO  - GUMMFD
PB  - Gazi Üniversitesi
WT  - DergiPark
SN  - 1300-1884
SP  - 91
EP  - 100
VL  - 39
IS  - 1
LA  - tr
AB  - Bu çalısmada, dört farklı ortam basıncında kurum, oluşum ve yıkım süreçlerini incelemek amacıyla, yoğun kurum üreten Gazyağı/Hava alevleri, gerçek gaz (GG) ve ideal gaz (İG) hal denklemleri ve Lewis (Le) sayısının bir olarak kabul edildiği modeller ele alınmıştır. Yarı-genel kurum oluşum ve yıkım modelini içeren indirgenmiş Gazyağı/Hava mekanizması (29-adım, 10 çeşit gaz) 2 boyutlu (2B) Direk Sayısal Simülasyon (DNS) verilerini oluşturmak için MPI FORTRAN ile kodu yazılmış bir program kullanılmıştır. Le sayısının bire eşit kabul edildiği alev tahminlerinin, Le sayısının bire eşit olmadığı (genelleştirilmiş difüzyon) durumların sayısal sonuçlarından elde edilen alev yapısı ve kurum özelliklerinin istatiksel olarak benzerlik sağlayıp sağlamadığı araştırılmıştır. Bu bağlamda yapılan çalışmanın sonucunda, ortam basınçları 1, 5, 10 ve 35 atm olan Le sayısının bir olarak kabul edildiği GGLE ve İGLE modelleri ile üretilmiş 2B DNS alev tahminlerinin kurum özelliklerinin ve alev yapılarının yanlış hesaplanmasına yol açtığı belirlenmiştir.
KW  - Gazyağı
KW  - kurum
KW  - DNS
KW  - gerçek gaz
KW  - genelleştirilmiş difüzyon
KW  - İdeal Gaz Kanunu
KW  - difüzyon alevleri
N2  - For heavily sooting Kerosene/Air flames the ideal gas law (IGL) and a real gas (RGL) equation of state (EOS) models have been employed to study the assumption of the unity Lewis (Le) number effects on the soot production/oxidation processes for four different operating pressures. An MPI FORTRAN code containing a semi-global soot production/oxidation model for a reduced Kerosene/Air mechanism (29-step, 10 species) has been used to create 2B DSS data. For the aim of verifying the applicability of the unity Le assumption for Kerosene/Air flames comparisons between unity and non-unity Lewis (Le) number flame predictions must possess statistically similar trends in not only the flame structure but also the soot properties. 1, 5 10 and 35 atm analyses of 2D DNS flame predictions of the RGL and the IGL EOS models have unveiled that the EOS coupled models with the unity-Le number mis-predicts the soot properties and the mean flame temperatures.
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UR  - https://doi.org/10.17341/gazimmfd.1153044
L1  - http://dergipark.org.tr/tr/download/article-file/2572073
ER  -