This paper investigates the chemical reaction and thermal radiation effects on unsteady MHD free convective flow past a vertical porous plate in the presence of heat absorption/generation.The novelty of present invest...This paper investigates the chemical reaction and thermal radiation effects on unsteady MHD free convective flow past a vertical porous plate in the presence of heat absorption/generation.The novelty of present investigation is that the temperature and concentration of the plate are span wise cosinusoidally unsteady with time.The second order perturbation technique is employed to study the non-linear partial differential equations which govern the fluid flow.The effects of magnetic parameter,radiation,Eckert number,Schmidt number and chemical reaction parameters on velocity,temperature and concentration distributions as well as skin friction coefficients,the rate of heat transfer and the rate of mass transfer are discussed through figures and tables.It is noticed that the Nusselt number declines with rising values of Prandtl and Eckert numbers.展开更多
We investigate the single-event two-pion correlation functions for the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by the Heavy Ion Jet Interaction Generator （HIJING）. Us...We investigate the single-event two-pion correlation functions for the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by the Heavy Ion Jet Interaction Generator （HIJING）. Using a three-dimension fast Fourier transform （FFT）, we further extract the source functions from the single-event correlation functions. It is found that the inhomogeneity of the hydrodynamic sources with the fluctuating initial conditions lead to event-by-event fluctuations of the correlation functions and source functions.展开更多
This paper describes the numerical simulation of unsteady flows due to incoming wakes and/or varying back pressure,The solution method is based upon the one-step finite-volume TVD Lax-Wendroff scheme.Dual time-step ap...This paper describes the numerical simulation of unsteady flows due to incoming wakes and/or varying back pressure,The solution method is based upon the one-step finite-volume TVD Lax-Wendroff scheme.Dual time-step approach and multigrid algorithm are adopted to improve the computational efficiency of the baseline scheme.Numerical results for the transonic unsteady flow in a channel bump and the unsteady flow in a flat plate cascade and the VKI cascade are presented.展开更多
文摘This paper investigates the chemical reaction and thermal radiation effects on unsteady MHD free convective flow past a vertical porous plate in the presence of heat absorption/generation.The novelty of present investigation is that the temperature and concentration of the plate are span wise cosinusoidally unsteady with time.The second order perturbation technique is employed to study the non-linear partial differential equations which govern the fluid flow.The effects of magnetic parameter,radiation,Eckert number,Schmidt number and chemical reaction parameters on velocity,temperature and concentration distributions as well as skin friction coefficients,the rate of heat transfer and the rate of mass transfer are discussed through figures and tables.It is noticed that the Nusselt number declines with rising values of Prandtl and Eckert numbers.
基金Supported by National Natural Science Foundation of China(11075027,11275037)
文摘We investigate the single-event two-pion correlation functions for the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by the Heavy Ion Jet Interaction Generator （HIJING）. Using a three-dimension fast Fourier transform （FFT）, we further extract the source functions from the single-event correlation functions. It is found that the inhomogeneity of the hydrodynamic sources with the fluctuating initial conditions lead to event-by-event fluctuations of the correlation functions and source functions.
文摘This paper describes the numerical simulation of unsteady flows due to incoming wakes and/or varying back pressure,The solution method is based upon the one-step finite-volume TVD Lax-Wendroff scheme.Dual time-step approach and multigrid algorithm are adopted to improve the computational efficiency of the baseline scheme.Numerical results for the transonic unsteady flow in a channel bump and the unsteady flow in a flat plate cascade and the VKI cascade are presented.
