Wave propagation analysis of the upwind methods for the solution of one-dimensional advection equation
Publish place: Third National Conference on Engineering Science Development
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
View: 524
This Paper With 7 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
AIHE10_148
تاریخ نمایه سازی: 5 بهمن 1395
Abstract:
A variety of explicit and implicit finite difference methods involving two and three levels in time, have been used for solving advection equation ,for example, first , second and third – order upwind formula, Rusanove (1,5) ,Leapfrogsecond and fourth –order, etc. Since the most of accuracy of those methods have not been estimated by wavepropagation analysis ,therefore, In this paper the accuracy of the first ,second and third –order upwind formula forsolving advection equation are studied by wave propagation analysis .Their accuracy has been estimated by comparing their amplitude response and relative wave speed or phase. The results are shown by figures in each case ,to illustrate the efficiency of upwind methods, especially for third-order
Keywords:
Authors
A Mokhtari Naseri
Department of mathematics,lahijan Branch Islamic Azad University ,Lahijan ,Iran
H Saberi Najafi
Department of mathematics,lahijan Branch Islamic Azad University ,Lahijan ,Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :