An Open-Source Hypersonic Solver For Non-equilibrium Flows

celik, bayram; VATANSEVER, DAVUT

An Open-Source Hypersonic Solver For Non-equilibrium Flows

Davut VATANSEVER, (İstanbul Teknik Üniversitesi, Uzay Mühendisliği Bölümü, İstanbul, Türkiye)

Bayram ÇELİK (İstanbul Teknik Üniversitesi, Uzay Mühendisliği Bölümü, İstanbul, Türkiye)

Havacılık ve Uzay Teknolojileri Dergisi

33 3

Yıl: 2021 Cilt: 14 Sayı: 1 Sayfa Aralığı: 35 - 52 Metin Dili: İngilizce İndeks Tarihi: 25-01-2022

An Open-Source Hypersonic Solver For Non-equilibrium Flows

Öz:

An implementation of a thermally non-equilibrium modeling on an existing open-source CFD solver is presented in this study. A newly coded open-source Navier-Stokes solver, hyperReactingFoam, including two-temperature model was developed within the framework of OpenFOAM. Disregarding electronic states in ionizing flows, the solver decomposes equilibrium temperature into trans-rotational and vibrational temperatures in thermal non-equilibrium conditions. Relaxations between distinct energy pools are achieved by utilizing an additional vibrational energy equation for each specie in the mixture. Coupling between trans-rotational and vibrational energy modes is governed by Landau-Teller equation. For energy transfers between different vibrationally excited species, formulation that is proposed by Knab et al. is implemented into the solver. The chemistry-vibrational coupling is realized by the Park TTv Model. Due to the multi- component nature of reacting flow, mixture pressure is calculated by using Dalton's Law from partial pressures of each reacting specie. Code validation tests are conducted on frequently used benchmark models such as adiabatic heat bath, blunted cone, and double cone models. It has been shown that hyperReactingFoam solver is in good agreement with other numerical solvers and experiments available in the literature.

Anahtar Kelime:

Denge Konumundan Uzak Akışlar İçin Açık Kaynak Kodlu Hipersonik Bir Çözücü

Öz:

Bu çalışmada ısıl dengede olmayan tepkimeli bir akış çözücüsü mevcut açık kaynaklı bir HAD çözücüsü modifiye edilerek geliştirilmiştir. Geliştirilen Navier-Stokes çözücüsü olan hyperReactingFoam OpenFOAM yazılımı kapsamında geliştirilmiş olup iki-sıcaklık modelini ihtiva etmektedir. İki sıcaklık modeli kapsamında, elektronik ve iyonlaşma etkileri ihmal edilerek ısıl dengeden uzak akış fiziği, denge sıcaklığının öteleme-dönme ve titreşimsel sıcaklıklara ayrılmasıyla modellenmiştir. Titreşimsel sıcaklıkların elde edilebilmesi adına korunum denklemlerine ek bir titreşimsel enerji denklem seti ilave edilmiştir. Öteleme-dönme ve titreşimsel enerji modları arasındaki rahatlama etkisi Landau-Teller denklemi ile, farklı titreşimsel modlar arasındaki enerji transferleri Knab vd. tarafından geliştirilen bir formülasyon ile, kimyasal etkilerle titreşimsel enerji modu arasındaki etkileşim ise Park TTv modeli ile gerçekleştirilmiştir. Karışımın toplam basıncı Dalton yasası yardımıyla hesaplanmıştır. Geliştirilen çözücü adyabatik ısı banyosu, küt burunlu koni ve sivri burunlu koni gibi hipersonik problemlerde sıklıkla kullanılan test modelleri üzerinde doğrulanmıştır. Doğrulama çalışmalarından elde edilen sonuçlara göre hyperReactingFoam çözücüsünün literatürdeki diğer hipersonik çözücüler ve deneyler ile uyumlu olduğu görülmüştür.

Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	VATANSEVER D, celik b (2021). An Open-Source Hypersonic Solver For Non-equilibrium Flows. , 35 - 52.
Chicago	VATANSEVER DAVUT,celik bayram An Open-Source Hypersonic Solver For Non-equilibrium Flows. (2021): 35 - 52.
MLA	VATANSEVER DAVUT,celik bayram An Open-Source Hypersonic Solver For Non-equilibrium Flows. , 2021, ss.35 - 52.
AMA	VATANSEVER D,celik b An Open-Source Hypersonic Solver For Non-equilibrium Flows. . 2021; 35 - 52.
Vancouver	VATANSEVER D,celik b An Open-Source Hypersonic Solver For Non-equilibrium Flows. . 2021; 35 - 52.
IEEE	VATANSEVER D,celik b "An Open-Source Hypersonic Solver For Non-equilibrium Flows." , ss.35 - 52, 2021.
ISNAD	VATANSEVER, DAVUT - celik, bayram. "An Open-Source Hypersonic Solver For Non-equilibrium Flows". (2021), 35-52.

APA	VATANSEVER D, celik b (2021). An Open-Source Hypersonic Solver For Non-equilibrium Flows. Havacılık ve Uzay Teknolojileri Dergisi, 14(1), 35 - 52.
Chicago	VATANSEVER DAVUT,celik bayram An Open-Source Hypersonic Solver For Non-equilibrium Flows. Havacılık ve Uzay Teknolojileri Dergisi 14, no.1 (2021): 35 - 52.
MLA	VATANSEVER DAVUT,celik bayram An Open-Source Hypersonic Solver For Non-equilibrium Flows. Havacılık ve Uzay Teknolojileri Dergisi, vol.14, no.1, 2021, ss.35 - 52.
AMA	VATANSEVER D,celik b An Open-Source Hypersonic Solver For Non-equilibrium Flows. Havacılık ve Uzay Teknolojileri Dergisi. 2021; 14(1): 35 - 52.
Vancouver	VATANSEVER D,celik b An Open-Source Hypersonic Solver For Non-equilibrium Flows. Havacılık ve Uzay Teknolojileri Dergisi. 2021; 14(1): 35 - 52.
IEEE	VATANSEVER D,celik b "An Open-Source Hypersonic Solver For Non-equilibrium Flows." Havacılık ve Uzay Teknolojileri Dergisi, 14, ss.35 - 52, 2021.
ISNAD	VATANSEVER, DAVUT - celik, bayram. "An Open-Source Hypersonic Solver For Non-equilibrium Flows". Havacılık ve Uzay Teknolojileri Dergisi 14/1 (2021), 35-52.