Some Problems on a Class of Fluid Dynamical Systems : Euler-Poisson, Navier-Stokes-Poisson, Euler and Navier-Stokes Equations

ISBN-13: 9783639183573 / Angielski / Miękka / 2009 / 80 str.

Manwai Yuen

Opis

In this monograph, we consider the solutions for a class of fluid dynamical systems, such as the isentropic Euler-Poisson, Navier-Stokes-Poisson, Navier-Stokes, Euler equations. As these systems share some similar mathematical structures, we would like to find the relationship between them, such as some blowup and stability phenomena. We have constructed the blowup (collapsing) solutions for the Euler-Poisson and Navier-Stokes-Poisson systems and the systems with frictional damping. In particular, the analytical blowup solutions for the 2 dimensional isothermal ( =1) systems are the core result. Then, the blowup rates of the solutions are studied. The special solutions for the constant pressure systems are also covered. And some special blowup solutions for these systems in radially symmetry are given. After that, the general existence of blowup solutions for the Euler system with constant pressure is obtained. In addition, we present a special blowup solution for the Euler system. The stabilities of the Euler-Poisson equations are also considered. Some open problems are discussed on the 3 dimensional Euler-Poisson equations in the end.

O autorze

The author obtained BSc with 1st class honors and MPhil from Department of Mathematics, City University of Hong Kong, and MSc and PGDE from The Chinese University of Hong Kong. Currently, he is a fulltime PhD student under the supervision of Prof. Kwong Man Kam, in Department of Applied Mathematics, The Hong Kong Polytechnic University.