研究了n(n≥1)维空间理想可压缩流中带有非线性阻尼项的等熵欧拉方程组的初值问题。当初始密度有紧支集时.利用泛函结合特征线的方法,证明了在真空情形下带有形如-αρ|u|^θu阻尼项的可压缩等熵欧拉方程组,其阻尼系数a为正常数时的正规解在初始数据一定大时必定爆破,其中0〈θ〈1。
The regular solutions of the n-dimensional isentropic Euler equations with the nonlinear damping for a perfect gas are investigated in this paper. Utilizing the methods of the functional in combination with charaeteristics, we prove the compressible isentropic Euler equations in vacuum case with the damp like -αρ|u|^θu.If its damping coefficient a is positive constant when the initial data are large enough the regular solutions would blow up in finite time.