TACITE is able to solve transient two-phase flow in pipes. It is dedicated to oil engeneering.
What does TACITE do ?
TACITE allows vertical, oblic and horizontal flow computation.
TACITE uses a 1D instationary model. The mesh is composed of adjacent cylinders (cells) forming the pipe.
TACITE simulates dispersed, stratified, anular, and intermittent flows. Hydrodynamic transient as well as thermal transient can be performed. Influence of pipe equipments such as valves, relief valves, pumps can be taken into acount.
A simplified composition with N(N=2..12) pseudo-components is used to describe the fluid. It incomes to the user to specify components caracteristics in order to represent the real fluid.
Since no source code is available ,TACITE 4.009 is a black box because composed of only one executable file named tacite.out.
The paramters transmission is done with editing ASCII files. After a computation TACITE output is composed of some ASCII or binary files reporting :-The simulation parameters files- The results files
The file naming use a generic name defined by the user followed by specific extentions . We use SimName as the example generic name.
The simulation parameters files :
These files are the copy of which were used to perform the simulation.The sufix _# , where # is the number of the last simulation using the same generic name, is appended to the generic name in order to name successive similar simulations. It may be used when only slight modifications to the parameters files are done.
As an example, the result of a sequence of 3 simulations modifying some of the SimName.* parameters files is the set of folowing files :
SimName_1.* SimName_2.* SimName_3.*When performing an other version of a simulation, followng parameters files are created.
SimName_#+1 SimName_#+1.GEO SimName_#+1.MSH SimName_#+1.PVT SimName_#+1.SCE SimName_#+1.STO SimName_#+1.THE SimName_#+1.TOP
The content of these files is concatenated in tow files :
SimName.TIT and SimName.REP
*Note that the simulation number (=job number) is stored in the SimName.JNB file.
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The restart file :
SimName.RTT
This ASCII file created at the end of the simulation contains all the static and thermodynamic data that are needed to restart the simulation if any.
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The results files
Binary or ASCII files as specified in SimName.STO file.SimName_#.XV : Store only space dependent variable i.e. the topology and section area distributuion.
SimName_#.XN : organization and nomenclature of SimName_#.XV file.
SimName_#.TV : Store only the time dependent variables
SimName_#.TN : organization and nomenclature of SimName_#.TV file.
SimName_#.TXV : Store the space-time dependent variables -> Output data mangement
SimName_#.TXN : organization and nomenclature of SimName_#.TV file.
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