The VI International Conference and Exhibition “Gas Transportation Systems: Present and Future” was held on October 28–29, 2015 in Gazprom VNIIGAZ. More than 400 representatives of the leading Russian and foreign companies from 15 countries that involved in gas transportation have convened to discuss new opportunities, challenges and the latest technologies and developments in gas mains industry.
Specialists of Simmakers Ltd. have introduced an article about new numerical simulation method of transient heat transfer. The last is based on spatial interpolation of soil temperature from temperature logs of monitoring wells.
The design of a frozen dam is impossible without thermal analyses in relation to architecture, the thermophysical properties of the soil, and meteorological and hydrological conditions.
The most effective tool for such simulations is the Frost 3D Universal software package that enables you to forecast soil freezing and thawing with regard to groundwater filtration.
Simmakers Ltd participated in the XV scientific conference “Information Technologies in Engineering”, held on 7-8 April 2015 at Giprotyumenneftegaz (R&D and engineering company, Tyumen, Russia).
As usual, the conference was attended by leading R&D institutes involved in the oil and gas industry: Giprovostokneft, Lukoil Engineering, SurgutNIPIneft, as well as software solutions vendors: Bentley Systems, ANSYS, CSoft and others. Among the conference participants were some of Simmakers Ltd customers: Fundamentstroyarkos, Tyumenneftegazproekt and our partners from NVIDIA.
The conference focused on topics such as new IT solutions, computer simulation technologies and the use of CAD and CAE systems in the oil and gas industry.
The article “Forecasting of Permafrost Thawing Around an Underground Cross-Country Pipeline” was published in the peer-reviewed scientific journal “Oil&Oil Products Pipeline Transportation: Science and Technologies” (№ 1 (17) 2015).
In the article, formation of thawing bulb around the cross-country pipeline is simulated in Frost 3D Universal software package. Presented computer simulation is based on the numerical solution of the heat equation in three-dimensional statement factoring phase transitions. The proposed technique can be applied at design and operation of underground pipelines in difficult geological and engineering conditions for an assessment of the thawing bulb formation. The knowledge of the thawing bulb size is necessary at calculation of the stress-strain state of a pipeline.
 |
 |
The mathematical model used in Frost 3D Universal has been verified against the precise analytical solution to the soil freezing problem and against experimental data obtained under laboratory conditions.
The results demonstrate the high accuracy of the numerical solutions obtained by the Frost 3D Universal software package. Comparison of the software’s numerical computations with exact analytical solutions shows that the error does not exceed 0.5%, and this figure approaches zero in Frost 3D Universal as the spatial step decreases.
|
|
The list of updates, changes and corrections made to Frost 3D Universal versions 3.0.x.x and 4.0.x.x for the period from 1st October to 31st December 2014.
The updates were applied to the following modules:
|
 |
The R&D Department of Simmakers Ltd. has introduced an article on the computer simulation of foundation deformation. The approach is based on numerical solution of the stationary differential equation in partial derivatives. This method allows you to predict the behavior of foundation and soils, taking elasticity and boundary conditions into account, enabling accurate simulation of subsidence. In an already published article, we consider the main types of foundations on subsiding soils: the case when foundation is fastened to the raft and the case when the foundation slab rests on the ground surface or piles. |
