Igor A. Bolotnov

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Large-scale simulations conducted on supercomputers such as leadership-class computing facilities allow researchers to simulate and study complex problems with high fidelity, and thus have become indispensable in diverse areas of science and engineering. These high-fidelity simulations generate vast amount of data which is becoming more and more difficult(More)
The required technological and safety standards for future Gen IV Reactors can only be achieved if advanced simulation capabilities become available, which combine high performance computing with the necessary level of modeling detail and high accuracy of predictions. The development of a suite of high performance computational tools for multiscale(More)
The state-of-the-art multiphase fluid dynamics code, NPHASE-CMFD, performs multiphase flow simulations in complex domains nonlinearly implicitly and in parallel, which is a challenging environment for the linear solver. The present work illustrates how the Portable, Extensible Toolkit for Scientific Computation (PETSc) and scalable Algebraic Multigrid AMG(More)
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