NASIR Heat Generation and Transfer Solver for RCC Dams

  • Saeed-Reza Sabbagh-Yazdi
  • Ali-Reza Bagheri
  • Nikos E. Mastorakis
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 28)


In this paper, the heat transfer module of NASIR (Numerical Analyzer for Scientific and Industrial Requirements), software which solves the temperature field on unstructured finite volumes, is introduced. In this software, the transient PDE for heat transfer in solid media is coupled to a suitable concrete heat generation algebraic relation. The discrete form of the heat transfer equations is derived by multiplying the governing equation by a piece wise linear test function and integrating over a sub-domain around any computational node. The solution domain is divided into hybrid structured/unstructured triangular elements. The triangular elements in the structured part of the mesh can be activated for simulating gradual movement of the top boundary domain due to advancing the concrete lifts. The accuracy of the developed model is assessed by comparison of the results with available analytical solutions and experimental measurements of two-dimensional heat generation and transfer in a square domain. The computer model is utilized to simulate the transient temperature field in a typical RCC dam.


Heat Generation Triangular Mesh Cement Hydration Concrete Block Natural Boundary Condition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Saeed-Reza Sabbagh-Yazdi
    • 1
  • Ali-Reza Bagheri
  • Nikos E. Mastorakis
    • 2
  1. 1.Department of Civil EngineeringK.N. Toosi University of TechnologyIran
  2. 2.Military Insitutes of University Education (ASEI) Hellenic Naval Academy, Terma ChatzikyriakouGreece

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