کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4612595 1338697 2010 47 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On transonic shocks in a conic divergent nozzle with axi-symmetric exit pressures
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آنالیز ریاضی
پیش نمایش صفحه اول مقاله
On transonic shocks in a conic divergent nozzle with axi-symmetric exit pressures
چکیده انگلیسی

In this paper, we establish the existence and stability of a 3-D transonic shock solution to the full steady compressible Euler system in a class of de Laval nozzles with a conic divergent part when a given variable axi-symmetric exit pressure lies in a suitable scope. Thus, for this class of nozzles, we have solved such a transonic shock problem in the axi-symmetric case described by Courant and Friedrichs (1948) in Section 147 of [8]: Given the appropriately large exit pressure pe(x), if the upstream flow is still supersonic behind the throat of the nozzle, then at a certain place in the diverging part of the nozzle a shock front intervenes and the gas is compressed and slowed down to subsonic speed so that the position and the strength of the shock front are automatically adjusted such that the end pressure at the exit becomes pe(x).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Differential Equations - Volume 248, Issue 3, 1 February 2010, Pages 423-469