Falavand Jozaei, Ali, Tayebi, Ali, Shekari, Younes, Ghafouri, Ashkan. (1396). Numerical simulation of transient natural gas flow in pipelines using high order DG-ADER scheme. هنرهای کاربردی, 4(1), 35-43. doi: 10.22075/jhmtr.2016.497
Ali Falavand Jozaei; Ali Tayebi; Younes Shekari; Ashkan Ghafouri. "Numerical simulation of transient natural gas flow in pipelines using high order DG-ADER scheme". هنرهای کاربردی, 4, 1, 1396, 35-43. doi: 10.22075/jhmtr.2016.497
Falavand Jozaei, Ali, Tayebi, Ali, Shekari, Younes, Ghafouri, Ashkan. (1396). 'Numerical simulation of transient natural gas flow in pipelines using high order DG-ADER scheme', هنرهای کاربردی, 4(1), pp. 35-43. doi: 10.22075/jhmtr.2016.497
Falavand Jozaei, Ali, Tayebi, Ali, Shekari, Younes, Ghafouri, Ashkan. Numerical simulation of transient natural gas flow in pipelines using high order DG-ADER scheme. هنرهای کاربردی, 1396; 4(1): 35-43. doi: 10.22075/jhmtr.2016.497

Numerical simulation of transient natural gas flow in pipelines using high order DG-ADER scheme

Journal of Heat and Mass Transfer Research
مقاله 4، دوره 4، شماره 1 - شماره پیاپی 7، 2017، صفحه 35-43    اصل مقاله (823.28 K)
نوع مقاله: Full Length Research Article
شناسه دیجیتال (DOI): 10.22075/jhmtr.2016.497
نویسندگان
Ali Falavand Jozaei* 1؛ Ali Tayebi2؛ Younes Shekari2؛ Ashkan Ghafouri3
1Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2Yasouj University, Yasouj, Iran.
3Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
چکیده
To increase the numerical accuracy in solving engineering problems, either conventional methods on a fine grid or methods with a high order of accuracy on a coarse grid can be used. In the present research, the second approach is utilized and the arbitrary high order Discontinues Galerkin Arbitrary DERivative (DG-ADER) method is applied to analyze the transient isothermal flow of natural gas through pipelines. The problem is investigated one dimensionally and the effect of friction force between the pipe wall and fluid flow is considered as a source term on the right-hand side of the momentum equation. Therefore, the governing equations have a hyperbolic nature. Two real problems with available field data are simulated using this method. The results show that using DG-ADER method, high accurate results can be obtained even on a coarse grid. Furthermore, the conventional small-amplitude oscillations of DG-ADER scheme do not appear in the transient natural gas flow problems, due to the smoothness of flow field properties.
کلیدواژه‌ها
transient natural gas flow؛ Numerical simulation؛ high order DG-ADER scheme؛ isothermal flow
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