Русский / English 
Projects » Program codes » Program code GeRa


Краткая информация
Code featuresEventsExamplesPublicationsLast releaseDownload PDFHow to get it
Project's news
Семинар по проекту «Коды нового поколения»

V Школа-семинар по кодам нового поколения завершила свою работу

Учебный курс по коду GeRa 2022

Code Information Page

The GeRa code (Geomigration of Radionuclides) is a high-tech software package for a three-dimensional hydrogeological modeling of groundwater flow and mass transport of pollutants, developed by Nuclear Safety Institute (IBRAE) ( and Marchuk Institute of Numerical Mathematics (INM RAS) ( The State customer and the coordinator is the state atomic energy Corporation Rosatom.

There are currently 3 versions of the GeRa code:

  • GeRa/V1, sertified by the Federal Service for Environmental, Technological and Nuclear Supervision (Rostekhnadzor) in 2018,
  • GeRa/V2sertified by Rostekhnadzor in 2021,
  • GeRa/V3, which is currently under active development and has advanced modeling capabilities.

Nowaday, GeRa/V1 and GeRa/V2 versions have been certified by Rostekhnadzor for practical use in substantiating the safety assessment of nuclear facilities, transferred under license agreements to a number of organizations and are actively used to create hydrogeological models and assess the safety of various nuclear facilities.

Training courses are held annually as part of the School-Seminar on New Generation Codes.

GeRa provides a full cycle of hydrogeological modeling: the construction of a geological model and its parameterization, creating and filling of a monitoring data base, computational grid generating, groundwater flow and mass transport calculations, visualization and verification of modeling results.

Main capabilities of the GeRa code

  • Intuitive and easy-to-learn graphical interface for the whole simulation and verification cycle.
  • Geological model creation with the ability to download data, prepared in the other programs.
  • Usage geostatistics and interpolation methods for geological layers construction.
  • Calculation on unstructured locally refining computational grids, using one of two generators.
  • Simulation of a large number of different physical processes, such as groundwater flow in confined-unconfined and saturated-unsaturated conditions, advective-diffusion-dispersive mass transport, density convection and many others (a list of all processes is provided on the page "Code Features").
  • Chemical reactions accounting, as well as the calculation of radioactive decay, with accounting decay chains.
  • Using high-parallel systems for calculations performing.
  • Embedded possibilities for visualization of calculation results, its analysis and verification of models on real field data.
  • Mesh-independent setting of model parameters.

Experience of the using GeRa code

With the using GeRa code, models of the following facilities were implemented: designed near surface disposal facility (Federal State Unitary Enterprise "Mayak Production Association" and Ural Electromechanical Plant); designed deep geological disposal (in Sosnovy Bor and Siberian Chemical Combine); LRW injection sites "Zheleznogorsk" and "Dimitrovgrad" of branch of FSUE "National Operator for Radioactive Waste Management"; designed underground research laboratory in the Nizhnekansk rock massif (URL NKM); storage facilities for special radioactive waste (FSUE "Radon"); sludge storages and gaspipes (Angarsk Electrolysis Chemical Complex); slurry storage facilities (Siberian Chemical Combine and Chepetsk Mechanical Plant); spent fuel pools (Beloyarsk NPP); sites of Russian Research Institute for Chemical Technology and V. G. Khlopin Radium Institute as part of the decommissioning works; landfills in Nekrasovka and Kuchino.


The Russian Federation, on behalf of which Rosatom State Corporation acts, and IBRAE RAS



IBRAE RAN © 2013-2023 Site map | Feedback