Xpsim version 2.03 - What is new

Release date: January, 27  2017

Development work on the dynamic simulation of multiphase PIPELINE units has been completed as a first version. A number of examples will be published soon


Service Patches and corrections issued along last year (2016) as modifications of the 2.02 version have been incorporated and consolidated.
In addition to other minor additions, the following new main features are available.

The W-HENRY model has been included with the purpose to simulate air-water systems. These are found in the dynamic simulation of flow-loops and in engineering operations such as pipeline drying.

In the VLECURVE function plotting of phase properties such as density, enthalpy and entropy has been added.

The equation of state GERG-2008, which is an extension of the GERG-2004 equation, has been implemented. For this equation, the calculation of equilibrium k-values has been added.

Unit Operations
In the PIPELINE simulation, a vapor-liquid 2-phase flow NOSLIP model is now available. This model can be of help in various cases such as the initialization of dynamic simulations..


All the graphs generated in a simulation run (steady state or dynamic) can be listed and previewed in a dedicated window.
The selection of a particular graph and its customization is made from the ‘Graph List & Preview’ window.


The Dynamic Simulation Option has been extended and is available through the standard ‘Windows User Interface’.

These capabilities are managed by the new "Windows User Interface" which allows the user to define interactive dynamic simulations and browse generated values.

The dynamic simulation option allows the user to define interactive dynamic simulations and browse/plot generated values. The display of dynamic changes of pipeline profiles is now available.

Since EVENT definitions have been extended, a summary display of event sequences has been introduced.

These features are descrThese features are described in the dynamic simulation manual included in the installation package:
Dynamic Simulation for XPSIM v.2.03 – Reference Manual - Rev. 2.0 – January 2017