一种求解二维热传导方程的高效算法--ETF-FD-MG 方法

来源 :北京科技大学学报 | 被引量 : 0次 | 上传用户:z58119366
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
针对二维热传导问题,提出了时间为三阶、空间为二阶的无条件稳定的ETF-FD-MG算法 (Extended Trapezoidal Formula Finite Difference Scheme Multigrid),分析了其精度和稳定性,证明了其收敛性.数值分析实例说明ETF-FD-MG算法的计算效率优于前人的FE-MG(有限元-多重网格)算法.
其他文献
The encapsulation of stearic acid coated nanometer CaCO3 by a polystyrene (PS) network via emulsion polymerization is described, where γ-methacryloxypropyltrim
The influences of silica volume fraction, electrolyte concentration and pH value upon the stress dependence of elastic modulus G′and viscous modulus G″ were i
The interactions between four high bioactive diperoxovanadate complexesKn[OV(O2)2L]·mH2O (n = 1 ~3, m = 1~5, L = oxalate (abbr. oxa), picolinate (abbr. pic), bip
Rheumatoid factors(RFs) are the characteristic autoantibodies of rheumatoid arthritis. Recent researches in our laboratory showed that the immobilized single-st
Some novel solutions are constructed for the sine-Gordon equation from the modified bilinear derivative Backlund transformation. The approach used here is gener
The data, measured by a three-wavelength Integrating Nephelometer over Lanzhou City during the winters of 2001/2002 and 2002/2003 respectively, have been analyz
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
对二次背包问题提出两种半定规划松弛SDP1和SDP2,从理论上证明了SDP2能给出更好的上界,数值实验也说明了这点.
Tungsten dioxo complex WO2(C9H6NO)2 was obtained via the low temperature solid-state reaction of(NH4)2WS4, 8-hydroxyquinoline(8-hq) and(CH3)4NI, and it was char
采用当前最先进的激光装置与物质相互作用,可以获得与天体物理过程中相同或相似的条件 ,并进而开展利用激光等离子体模拟天体物理现象的实验.然而,激光等离子体为微米空间 尺度