Aerodynamic coefficients investigation of grad rocket using computational fluid dynamics

المؤلفون المشاركون

al-Taj, Ammar
Abu Darraj, Sakhr

المصدر

Journal of Science and Technology : in Engineering and Computer Sciences

العدد

المجلد 22، العدد 3 (31 ديسمبر/كانون الأول 2021)، ص ص. 9-18، 10ص.

الناشر

جامعة السودان للعلوم و التكنولوجيا عمادة البحث العلمي

تاريخ النشر

2021-12-31

دولة النشر

السودان

عدد الصفحات

10

التخصصات الرئيسية

هندسة ميكانيكية

الملخص EN

The article provides an aerodynamic characteristics investigation of GRAD Rocket using the computational fluid dynamic method.

Computational analysis has been performed to predict the Aerodynamic characteristics of the GRAD rocket.

A commercial software ANSYS FLUENT is used to simulate the unsteady aerodynamic characteristics of the missile while the Missile DATCOM software is used to confirm and validate the results.

The simulations have been conducted out for a range of Mach number 0.4 to 3 versus angle of attack from 0° to 9°, through the sideslip angle 0° to 9°.

The results represent that the Drag Coefficient is highly sensitive to the angle of attack and velocity region.

The total drag of the missile is mainly generated from the missile's body, where they wrap around fins contribute only 18.45 percent of a total drag coefficient.

In contrast, the lift coefficient increases with an increased angle of attack, but it decreases with changes of the region from subsonic to supersonic.

The flow visualization of the static and dynamic pressure contours is illustrated.

The Shock wave is captured at the nose and fins entrance.

To verify the results, the simulations were carried out for two missile models.

The first model represents the cylindrical body of the fin-less missiles, and the second one represents the rocket body with fins.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

al-Taj, Ammar& Abu Darraj, Sakhr. 2021. Aerodynamic coefficients investigation of grad rocket using computational fluid dynamics. Journal of Science and Technology : in Engineering and Computer Sciences،Vol. 22, no. 3, pp.9-18.
https://search.emarefa.net/detail/BIM-1384917

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

al-Taj, Ammar& Abu Darraj, Sakhr. Aerodynamic coefficients investigation of grad rocket using computational fluid dynamics. Journal of Science and Technology : in Engineering and Computer Sciences Vol. 22, no. 3 (2021), pp.9-18.
https://search.emarefa.net/detail/BIM-1384917

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

al-Taj, Ammar& Abu Darraj, Sakhr. Aerodynamic coefficients investigation of grad rocket using computational fluid dynamics. Journal of Science and Technology : in Engineering and Computer Sciences. 2021. Vol. 22, no. 3, pp.9-18.
https://search.emarefa.net/detail/BIM-1384917

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references : p. 18

رقم السجل

BIM-1384917