00812nas a2200109 4500000000100000008004100001100001400042700002400056245009500080300001400175520051300189 2011 d1 aM.M. Nycz1 aTadeusz Czachórski00aModelling transient TCP flows with the use of fluid flow approximation - a numerical study a181–1843 aThis article presents the problem of modeling the basic elements of the transport system of the modern computer networks. The study of selected issues of the network topology uses a mathematical model of fluid flow approximations, which is based on mean value analysis. The model describes the effects of time varying packet traffic on the network switches and packet loss generation by the assumptions of active queue management mechanisms used in routers. The computations are due to our new software tool.