摘要
对三维渗流方程θ(ψ(x,y,z,t))t=div[k(ψ(x,y,z,t))▽ψ(x,y,z,t)]-(k(ψ(x,y,z,t)))z作变换化为(A(u))t=Δu-(k(u))z,通过构造一个特殊的检验函数,用反证法证明了三维渗流数学模型(I)弱解的唯一性.
The three - dimensional infiltration equation θ( ψ(x,y,z, t) ), = div [ k (ψ (x, y,z, t) ) △↓ψ ( x,y,z, t) ] - ( k ( ψ ( x, y,z, t) ) )z was transformed into (A (u) ), = △u - ( k (u) ) s- By constructing a special test function, the u- niqueness of the weak solution of this model was proved with reduction to absurdity.
出处
《华南师范大学学报(自然科学版)》
CAS
北大核心
2012年第3期28-31,共4页
Journal of South China Normal University(Natural Science Edition)
基金
国家自然科学基金项目(11071083)
广东高校优秀青年创新人才培养计划项目(粤财教[2008]350号)
关键词
渗流模型
弱解
唯一性
反证法
infiltration model
weak solution
uniqueness
reduction to absurdity