(5月27日)教育部“節能與環保汽車創新引智基地”報告系列
來源🙍🏽♂️:汽車學院
時間🦃:2009-05-25 瀏覽:
一、 報告題目:混合多相流質子交換膜燃料電池三維建模及數值優化計算方法
二💵、 報 告 人🙎🏻:孫澎濤 博士(美國內華達大學 數學系)
四、 時 間:2009年5月27日(星期三)上午9:30-11:00
五、 地 點:新能源汽車工程中心 214室(嘉定校區)
摘要🧑🏻🦼👱🏻:
In this talk, a three-dimensional, nonisothermal, anisotropic, two-phase model for polymer electrolyte fuel cells (PEFCs) is studied, where flow, species, charge and energy equations are simultaneously addressed. The famous mixture multiphase (M^2) model plays the main role in this two-phase fuel cell model and will be investigated in this talk as well. Some new numerical techniques are specifically investigated in order to achieve fast and convergent numerical simulation. A series of efficient numerical algorithms and discretizations based on a combined finite element-upwind finite volume method are designed and analyzed to assist in approaching this goal. 3D numerical simulations demonstrate that the convergent and correct physical solutions can be attained within 100 more steps, against the oscillating and long-running nonlinear iterations (up to 5000 steps) operated by standard finite element/volume method if no new numerical technique is adopted.