Distributed networked hydrodynamic model supported by socket technology
LU Ji-kang · 2004
Hydrodynamic models play a key role in flood defense decision support system, but it needed to be rebuild for network application, which has the characteristics of wieldy distribution and maintenance. The paper analyzed the approach of upgrading hydrodynamic models to a network version. The B/S/S (Browser/WEB Server/Application Server) mode, which combines WWW service and Client/Server framework, was introduced. In this mode, the visualization, interaction and calculation of hydrodynamic models are separated into different parts and embedded into corresponding sections of the model. How to implement the mode was proposed and discussed. Several technology can be used for solving the difficulties of interaction between WEB Server and Application Server, such as, socket, named pipe, RPC, COM, CORBA, RMI, DCOM(COM+), WEBSERVICE(including .NET and SUN ONE) etc. The socket technology was finally chosen after comparison. The principle of the scheme was explained and an application of the technology in Flood Defense Decision Support System for the Harbin City was provided.