第344章 章 复杂性(2 / 2)

计算的依据来自具有狄利克雷边界条件的定常纳维-斯托克斯方程。

目前只能假定N-S方程成立,上百年来,科学家们皆是假定N-S方程成立,得出了大量的理论研究成果,并运用到实际中。

如果N-S方程不成立,那么飞机怎能翱翔天空?

本小章还未完~.~,请点击下一页继续阅读后面精彩内容!

N-S方程在大自然中时刻演绎,只不过人们无法求得它的数学解。

沈奇的思维一直在跳跃,从半导体照明中蓝光发光二极管的核心材料氮化镓,跳跃到N-S方程。

两种看似毫无关联的存在,在凝聚态物理复杂性原理的穿插下,摩擦,摩擦。

因为毫无关联,所以计算量极其巨大。

沈奇计算到深夜,忘记了吃饭,忘记了回家。

独守空闺的欧叶一个电话打过来:“几点回家?”

“哦,回家,12点了。”沈奇抱着一堆草稿纸,回到教职工宿舍。

“很忙呢?”欧叶将7点就煲好的鸡汤热一热,搁在餐桌上。

“我先喝汤,你帮我算一组数据,不用知道前因后果,通过低次等阶有限元方法,把这个方程解出来就OK了。”沈奇交代给欧叶一个计算任务,他喝起了鸡汤,味道不错,就是盐搁多了。

“这是……狄利克雷边界条件,N-S方程?”欧叶读本科时学过数学物理方法,考了99分,剩下一分不给,是因为那个数学物理方法的女老师说欧叶长的太美。

“数学物理方法忘光了没有?”沈奇笑问。

“小瞧我?”欧叶白了沈奇一眼,少女时代的计算姬之心熊熊燃烧。

仅仅一碗鸡汤的时间,欧叶在不知道来龙去脉的情况下,通过纯粹的数学计算方法,做出了最高效的计算。

“厉害了我的叶,温汤斩N-S。”沈奇复核了一遍计算结果。

这个计算结果让沈奇、欧叶均有些摸不着头脑。

υ1(x1,x2)=(x1δ(i+j)+x2γ(i-j-1))(x1δ(i+j+1)^2+x2γ(i+j-1)^2)……

υ2(x1,x2)=(x1δ(i+k)+x2γ(i-k+1))(x1δ(i+k-1)^2+x2γ(i-k+1)^2)……

……

“我不知道这组计算结果代表着什么,有何具体意义?仅仅从数学计算原理上来说,它们是正确的结果。”沈奇只能这么解释,他摇摇头:“我今早去了威腾那里,得到一些启迪,然后冥思苦想一整天,什么晶体缺陷啊、动力学啊、N-S方程啊,思维跳跃到飞起,自嗨到不行,就得出这么个无意义的数学结果。”

“并不是每一个数学计算结果,都有实际意义。”欧叶说到。

“哟呵,觉悟渐高啊小叶子。”沈奇打开电视,准备看会儿电视睡觉。

CNN正在播报一条新闻消息:“昨日圣迭戈西南部的太平洋海底发生里氏6.5级地震,地震引发的海啸袭击了圣迭戈,所幸未造成人员伤亡。”

沈奇一个激灵跳了起来,摩擦,摩擦!

地震是地球内部的摩擦。

电视画面中显示,震中位于太平洋海底,坐标是北纬32度30分、西经117度19分。

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