کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
469810 | 698358 | 2008 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Conservative upwind difference schemes for compressible flows in a duct Conservative upwind difference schemes for compressible flows in a duct](/preview/png/469810.png)
Numerical results are presented, and compared, for four conservative upwind difference schemes for the Euler equations representing the compressible flow of a gas in a duct of variable cross-section. The schemes are applied to a problem involving the interaction and reflection of a converging cylindrical shock. The schemes vary in their treatment of the flux balance, including treating part of it as a source, as well as in the averaging of flow variables, and whether the source term arising out of the geometry of the problem is handled using upwinding or treated as a point source. The schemes are shown to give similar results while being different in construction and implementation, and each having different approximate Jacobians and treatment of the source.
Journal: Computers & Mathematics with Applications - Volume 56, Issue 7, October 2008, Pages 1787–1796