In the present investigation, peristaltic flow Powell) has been taken into consideration in of non-Newtonian fluid model (Eyring- a cross-section of three-dimensional rect- angular channel. The flow is taken to be u...In the present investigation, peristaltic flow Powell) has been taken into consideration in of non-Newtonian fluid model (Eyring- a cross-section of three-dimensional rect- angular channel. The flow is taken to be unsteady and incompressible. The observations are made under the limitations of low Reynolds number and long wavelength which helps in reducing the governing equations. The walls of the channel are supposed to be compliant. The obtained equations are nonlinear partial differential equation of second order and have been solved analytically by using series solution technique. The achieved results are then portrayed graphically to see the variation of various emerging parame- ters on the profile of velocity. The stream functions have also been sketched in order to discuss the trapping behavior of the circular bolus.展开更多
研究了一类具有脉冲的二阶非线性时滞微分方程(r(t)x′(t))′-p(t)x′(t)+sum from i=1 to n qi(t)x(t-σ_i+f(t)=0,t≠t_k,x(t_k^+)-x(t_k)=a_kx(t_k),x′(t_k^+)-x′(t_k)=b_kx′(t_k),k∈Z^+的解的渐近性,并得到了一系列相关的充分条件.
The conservation laws for the (1+2)-dimensional Zakharov-Kuznetsov modified equal width (ZK-MEW) equation with power law nonlinearity are constructed by using Noether's approach through an interesting method of ...The conservation laws for the (1+2)-dimensional Zakharov-Kuznetsov modified equal width (ZK-MEW) equation with power law nonlinearity are constructed by using Noether's approach through an interesting method of increasing the order of this equation. With the aid of an obtained conservation law, the generalized double reduction theorem is applied to this equation. It can be shown that the reduced equation is a second order nonlinear ODE. FinaJ1y, some exact solutions for a particular case of this equation are obtained after solving the reduced equation.展开更多
文摘In the present investigation, peristaltic flow Powell) has been taken into consideration in of non-Newtonian fluid model (Eyring- a cross-section of three-dimensional rect- angular channel. The flow is taken to be unsteady and incompressible. The observations are made under the limitations of low Reynolds number and long wavelength which helps in reducing the governing equations. The walls of the channel are supposed to be compliant. The obtained equations are nonlinear partial differential equation of second order and have been solved analytically by using series solution technique. The achieved results are then portrayed graphically to see the variation of various emerging parame- ters on the profile of velocity. The stream functions have also been sketched in order to discuss the trapping behavior of the circular bolus.
文摘研究了一类具有脉冲的二阶非线性时滞微分方程(r(t)x′(t))′-p(t)x′(t)+sum from i=1 to n qi(t)x(t-σ_i+f(t)=0,t≠t_k,x(t_k^+)-x(t_k)=a_kx(t_k),x′(t_k^+)-x′(t_k)=b_kx′(t_k),k∈Z^+的解的渐近性,并得到了一系列相关的充分条件.
基金Supported by the Fundamental Research Funds for the Central Universities under Grant No.2013XK03the National Natural Science Foundation of China under Grant No.11371361
文摘The conservation laws for the (1+2)-dimensional Zakharov-Kuznetsov modified equal width (ZK-MEW) equation with power law nonlinearity are constructed by using Noether's approach through an interesting method of increasing the order of this equation. With the aid of an obtained conservation law, the generalized double reduction theorem is applied to this equation. It can be shown that the reduced equation is a second order nonlinear ODE. FinaJ1y, some exact solutions for a particular case of this equation are obtained after solving the reduced equation.