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Article “The Transfer of Boundary Conditions on an Orthogonal Hexahedral Mesh”

Aug 02, 2013

In the simulation of physical processes and phenomena overall there is a problem of numerical solutions of differential problems in partial derivatives. One of the methods for numerical solutions of mathematical physics equations is the approach, based on the finite difference approximation. However, the major drawback of this method is the need to use orthogonal hexahedral mesh. While solving problems in practice, sometimes a complex geometric configuration of the computational domain (for example, see Figure 1) is used, and therefore, the drawback, mentioned above, is enough critical.

Picture 1 – The example of a complex surface as a part of the computational domain

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The World Congress on Engineering, 2013

Jul 15, 2013

On 3-5 July, 2013 The World Congress on Engineering took place in London, United Kingdom.

Simmakers took part in the Congress and represented the report:

Quasilinear Heat Equation in Three Dimensions and Stefan Problem in Permafrost Soils in the Frame of Alternating Directions Finite Difference Scheme

Abstract — The quasilinear heat equation with thermal conductivity and heat capacity depending on the temperature field in three spatial dimensions is studied in application to the phase transition problem in permafrost soils. The conditions under which the alternating directions Douglas – Rachford finite difference scheme retains numerical stability are explicitly formulated. The comparison with the known analytical similarity solution to the Stefan problem in one spatial dimension is performed.

Index Terms — quasilinear heat equation, Stefan problem, finite differences, alternating directions scheme, numerical stability.

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4th International Conference ENERCON 2013

Jul 01, 2013

 

Simmakers took part in the 4th International Conference ENERCON 2013 on innovative development of oil and gas sector, which was held on June 26-28, 2013. Simmakers presented the report “The problem of CAE software application for solving specific problems in oil and gas industry”.

Many scientific institutions and companies from Russia, CIS and other countries took part in the conference. Among them were OAO “Tatneft”, JSC “Zarubezhneft”, The Institute of Petroleum Chemistry, Siberian Division of the Russian Academy of Sciences, Weatherford International Ltd, Republican Unitary Enterprise “Production Association “Belorusneft”, Kruss GmbH, Bal Seal Engineering, IntroVision R&D and many others.

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The Fourth Oil and Gas Conference “Ecosecurity – 2013”

Apr 29, 2013

Simmakers took part in the Fourth Oil and Gas conference “Ecosecurity – 2013”, which was held on April 23, 2013 in Moscow. The report “Computer simulation for solving environmental problems in oil and gas industry” was represented to the public.

Representatives of Russian and CIS companies and scientific organizations took part in the conference. Among them were Concern “Belneftekhim”, VNIPIneft, Gazprom VNIIGAZ LLC, Gazprom gaznadzor, Gazprom Dobycha Shelf, Gazpromdevelopment, Tatoilgas, etc.

Ecosecurity-2013 Computer simulation for solving environmental problems in oil and gas industry

XIII Scientific Conference “IT in Engineering”

Apr 15, 2013

Simmakers took part in the XIII scientific conference “Information Technologies in Engineering”, which was held on April 2-4, 2013 in Giprotyumenneftegaz institute, Tyumen.

Representatives of 53 companies from 22 Russian cities and CIS countries took part in the conference, including Bentley Systems, Rosneft NTC, TNK-BP Management, Surgutneftegas, Giprovostokneft, Bashnipineft, Tatnipineft, Tomsknipineft, Tyumennipineft, Ufanipineft, Samaranipineft, etc.

Simmakers representatives presented 2 reports “Software Development for Specific Problems in Oil and Gas Industry” and “Specificity of the Numerical Heat Transfer in the Engineering Problems of Foundations Construction in Permafrost”.

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Article “3D Geological Modeling Based on Boreholes Data”

Mar 18, 2013

Introduction

3D geological modeling is a very actual issue nowadays in building development, environmental assessment of soil (variably-saturated porous medium) pollution, assessment of mineral deposits, etc. There are different approaches to solve this problem by means of modern software designed for simulation in geology [1-3]. The most frequently used method is that of reconstructing geological model. This method is based on information about the levels of geological horizons occurrence received from the results of drilling [4-6]. The implementation of this method itself may have some peculiarities.

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Regional IT-Conference SolIT-2013

Feb 01, 2013

Simmakers with 3 presentations took part in the Regional IT-conference SolIT 2013, which was held on January 26-27 in Soligorsk. Representatives of Russian, Belarus, German, US and UK companies participated in this event. Simmakers had invited technical specialists of such companies as “Belaruskali”, “Trest Shakhtospecstroy” and “Soligorsk Institute for Problems of Resource’s Saving with Experienced Production” to hear the presentations.

The contents of the presentations are the following:

• “Computer simulation and scientific software development”. IT section. The use of computer simulation to improve product quality, manufacturing efficiency and competitiveness of the enterprise. Technological and physical processes simulation in the following areas: machinery construction, environment, mining industry. The process of scientific software development by example of creating software for simulation of heat and moisture transfer in soil under the influence of thermal load of buildings, constructions and cooling devices.

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Article “Fast Volume Computing Algorithm…”

Sep 26, 2012

Introduction

Computing of the volume of polyhedron in 3D space isn’t a trivial problem, but the following trivial method exists: dividing the volume into simple pyramids and counting the sum of these volumes. However, this methodology is difficult for implementation, as well as it is resource-intensive and slow. What is more, computing algorithm according to this methodology is difficult to parallelize. And taking into account trends in the field of parallel computing on GPU development, the ability to increase the rate of computing repeatedly is being lost.

In this article the algorithm for determining the volume of arbitrary geometry in 3D space in terms of fast computing is described.

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