Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software

Eken, Seher; Alpman, Emre; ÇAMUR, Zeliha; Biçer, Barış; İNCİ, Harun; Kavurmacioglu, Levent

Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software

Emre ALPMAN, (Marmara Üniversitesi, Makine Mühendisliği Bölümü, İstanbul, Türkiye)

Levent Kavurmacioglu, (İstanbul Teknik Üniversitesi, Makine Mühendisliği Fakültesi, İstanbul, Türkiye)

Seher EKEN, (İstanbul Teknik Üniversitesi, Havacılık ve Uzay Bilimleri Fakültesi, İstanbul, Türkiye)

Harun İNCİ, (Samsun Üniversitesi, Havacılık ve Uzay Bilimleri Fakültesi, Samsun, Türkiye)

Zeliha ÇAMUR, (Samsun Üniversitesi, Havacılık ve Uzay Bilimleri Fakültesi, Samsun, Türkiye)

Barış BİÇER (Türk Havacılık ve Uzay Dairesi, Ankara, Türkiye)

Havacılık ve Uzay Teknolojileri Dergisi

7 2

Yıl: 2022 Cilt: 15 Sayı: 2 Sayfa Aralığı: 28 - 53 Metin Dili: İngilizce İndeks Tarihi: 08-09-2022

Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software

Öz:

In this work, a sonic boom prediction code is developed in order to numerically solve the Augmented Burgers' equation using the operator-splitting approach. The developed code was tested using the near-field pressure data for the “NASA Concept 25D with Flow Through Nacelle (C25D)” geometry and was validated by comparing with the sonic boom predictions obtained from two well-known codes; sBoom and bBoom. A mid-solver approach, which utilizes the open-source CFD software OpenFOAM® and a “Mach-cone aligned” structured mesh, was applied to extrapolate the nearfield pressure data to mid-field. Here, the near-field effects were propagated to mid-field by solving the Euler equations. The Mach-cone aligned mesh used in the solutions does not contain an airplane geometry and it was constructed using the open-source mesh generation software Gmsh in an automated manner. Here the user specifies the radii of the inner and outer surfaces, mesh spacing along with streamwise and circumferential directions and flow Mach number, only. Tests were conducted using the near-field data obtained from an inviscid flow solution for the C25D geometry via the open-source CFD software SU2. These tests showed that the mid-solver approach used in this study can successfully propagate near-field data to mid-field regions.

Anahtar Kelime: Sonic Boom Prediction Augmented Burgers Equation Perceived Loudness Level Extrapolation to mid-field OpenFOAM® SU2

Sonik Patlama Tahmin Programı Geliştirilmesi ve Açık Kaynaklı HAD Yazılımları Ile Sonik Patlama Tahminleri

Öz:

Bu çalışmada, operatör-ayırma yaklaşımı kullanılarak Genişletilmiş Burger denklemini sayısal olarak çözmek için bir sonik patlama tahmin kodu geliştirilmiştir. Geliştirilen kod, “NASA Concept 25D with Flow Through Nacelle (C25D)” geometrisi için elde edilmiş yakın alan basınç verileri kullanılarak test edilmiş ve literatürde sonik patlama konusunda iyi bilinen sBoom ve bBoom kodlarının sonuçları ile karşılaştırılarak doğrulanmıştır. Yakın alan basınç verilerinden orta alandaki basınç değerlerini tahmin edebilmek için, açık kaynaklı bir HAD yazılımı olan OpenFOAM® ve "Mach-konisi hizalı" yapısal bir çözüm ağı kullanan bir orta çözücü yaklaşımı kullanılmıştır. Burada yakın alan basınç verisinin orta alana iletilmesi için Euler denklemleri çözülmüştür. Çözümlerde kullanılan Mach-konisi hizalı ağ, uçak geometrisi içermemektedir ve açık kaynaklı bir ağ üretimi yazılımı olan Gmsh kullanılarak otomatik bir biçimde oluşturulmuştur. Burada kullanıcı yalnızca iç ve dış yüzeylerin yarıçaplarını, akış yönünde ve çevresel yönler boyunca ağ aralığını ve akış Mach sayısını girdi olarak belirlemektedir. Açık kaynaklı bir HAD yazılımı olan SU2 ile, C25D geometrisi için viskoz olmayan bir akış çözümünden elde edilen yakın alan verileri kullanılarak gerçekleştirilen testler sonucunda, kullanılan bu orta çözücü yaklaşımının yakın alan verilerini orta alan bölgelerine başarıyla yayabildiği görülmüştür.

Anahtar Kelime:

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

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APA	Alpman E, Kavurmacioglu L, Eken S, İNCİ H, ÇAMUR Z, Biçer B (2022). Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. , 28 - 53.
Chicago	Alpman Emre,Kavurmacioglu Levent,Eken Seher,İNCİ Harun,ÇAMUR Zeliha,Biçer Barış Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. (2022): 28 - 53.
MLA	Alpman Emre,Kavurmacioglu Levent,Eken Seher,İNCİ Harun,ÇAMUR Zeliha,Biçer Barış Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. , 2022, ss.28 - 53.
AMA	Alpman E,Kavurmacioglu L,Eken S,İNCİ H,ÇAMUR Z,Biçer B Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. . 2022; 28 - 53.
Vancouver	Alpman E,Kavurmacioglu L,Eken S,İNCİ H,ÇAMUR Z,Biçer B Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. . 2022; 28 - 53.
IEEE	Alpman E,Kavurmacioglu L,Eken S,İNCİ H,ÇAMUR Z,Biçer B "Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software." , ss.28 - 53, 2022.
ISNAD	Alpman, Emre vd. "Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software". (2022), 28-53.

APA	Alpman E, Kavurmacioglu L, Eken S, İNCİ H, ÇAMUR Z, Biçer B (2022). Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. Havacılık ve Uzay Teknolojileri Dergisi, 15(2), 28 - 53.
Chicago	Alpman Emre,Kavurmacioglu Levent,Eken Seher,İNCİ Harun,ÇAMUR Zeliha,Biçer Barış Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. Havacılık ve Uzay Teknolojileri Dergisi 15, no.2 (2022): 28 - 53.
MLA	Alpman Emre,Kavurmacioglu Levent,Eken Seher,İNCİ Harun,ÇAMUR Zeliha,Biçer Barış Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. Havacılık ve Uzay Teknolojileri Dergisi, vol.15, no.2, 2022, ss.28 - 53.
AMA	Alpman E,Kavurmacioglu L,Eken S,İNCİ H,ÇAMUR Z,Biçer B Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. Havacılık ve Uzay Teknolojileri Dergisi. 2022; 15(2): 28 - 53.
Vancouver	Alpman E,Kavurmacioglu L,Eken S,İNCİ H,ÇAMUR Z,Biçer B Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software. Havacılık ve Uzay Teknolojileri Dergisi. 2022; 15(2): 28 - 53.
IEEE	Alpman E,Kavurmacioglu L,Eken S,İNCİ H,ÇAMUR Z,Biçer B "Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software." Havacılık ve Uzay Teknolojileri Dergisi, 15, ss.28 - 53, 2022.
ISNAD	Alpman, Emre vd. "Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open-Source CFD Software". Havacılık ve Uzay Teknolojileri Dergisi 15/2 (2022), 28-53.