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Aerodynamic Parameters Analysis of Transonic Flow Past Unswept and Swept Wings
تحليل عوامل الأيروديناميكية لجريان حول صوتي على الأجنحة المتراجعة والمستقيمة

Author: Raad Shehab Ahmed
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 5 Pages: 948-960
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

The transonic flow past unswept and swept wings has been studied. For thispurpose the transonic potential flow equation is solved for inviscid compressible flow.The shock waves are replaced by discontinuities across which the entropy isconserved. The velocity field and pressure coefficients are estimated as function offree stream Mach number. The results show the effect of free stream Mach number onshock waves location and the velocity field around the wing section. The Eulersolution and potential flow solutions are identical at subsonic flow; however, atsupersonic flow the potential theory can no longer predict the flow field correctly. Theresults show the important effect of sweep angle on the value of the critical Machnumber for wings. By using Visual foil plus the pressure distribution and liftcoefficient and Mach contours for flow Past a NACA 0012 airfoil can be predicted.


Article
An Assessment of Transonic Flow on NACA Airfoil With K-Epsilon Standard, RNG and Spalar Turbulent Models Using A Quadrilateral Grid
تقييم خصائص الجريان الصوتي لمقطع NACA مع أستخدام موديل الجريان الأضطرابي سبالرت و K-Epsilon بنوعية (Standard , RNG) وبمساعدة النقاط الشبكية الرباعية

Author: Fayadh M. Abed Al-Dulaimy
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2005 Volume: 24 Issue: 7 Pages: 877-890
Publisher: University of Technology الجامعة التكنولوجية

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