Computation of the Added Masses of an Unconventional Airship
المؤلفون المشاركون
Azouz, Naoufel
Chaabani, Said
Lerbet, Jean
Abichou, Azgal
المصدر
Journal of Applied Mathematics
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-19، 19ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-10-14
دولة النشر
مصر
عدد الصفحات
19
التخصصات الرئيسية
الملخص EN
This paper presents a modelling of an unmanned airship.
We are studying a quadrotor flying wing.
The modelling of this airship includes an aerodynamic study.
A special focus is done on the computation of the added masses.
Considering that the velocity potential of the air surrounding the airship obeys the Laplace's equation, the added masses matrix will be determined by means of the velocity potential flow theory.
Typically, when the shape of the careen is quite different from that of an ellipsoid, designers in preprocessing prefer to avoid complications arising from mathematical analysis of the velocity potential.
They use either complete numerical studies, or geometric approximation methods, although these methods can give relatively large differences compared to experimental measurements performed on the airship at the time of its completion.
We tried to develop here as far as possible the mathematical analysis of the velocity potential flow of this unconventional shape using certain assumptions.
The shape of the careen is assumed to be an elliptic cone.
To retrieve the velocity potential shapes, we use the spheroconal coordinates.
This leads to the Lamé's equations.
The whole system of equations governing the interaction air-structure, including the boundary conditions, is solved in an analytical setting.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Azouz, Naoufel& Chaabani, Said& Lerbet, Jean& Abichou, Azgal. 2012. Computation of the Added Masses of an Unconventional Airship. Journal of Applied Mathematics،Vol. 2012, no. 2012, pp.1-19.
https://search.emarefa.net/detail/BIM-993585
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Azouz, Naoufel…[et al.]. Computation of the Added Masses of an Unconventional Airship. Journal of Applied Mathematics No. 2012 (2012), pp.1-19.
https://search.emarefa.net/detail/BIM-993585
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Azouz, Naoufel& Chaabani, Said& Lerbet, Jean& Abichou, Azgal. Computation of the Added Masses of an Unconventional Airship. Journal of Applied Mathematics. 2012. Vol. 2012, no. 2012, pp.1-19.
https://search.emarefa.net/detail/BIM-993585
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-993585
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر