Parallel algorithm for modeling an unsteady process in a catalyst layer

Title	Parallel algorithm for modeling an unsteady process in a catalyst layer
Authors	A. S. Inshakova¹, O. S. Yazovtseva², I. M. Gubaydullin³ ¹National Research Mordovia State University ²Steklov Mathematical Institute of Russian Academy of Sciences ³Institute of Petrochemistry and Catalysis of RAS
Annotation	The article presents a comparative analysis of parallel algorithms based on OpenMP technology for modeling an unsteady process in a catalyst layer with spherical grain shapes. The chemical reaction is described in one stage. The mathematical model includes the diffusion-reaction equations for the catalyst grain, heat equation for the catalyst grain, and heat and mass transfer for the gas in the catalyst layer. The acceleration of the algorithm in the case of applying parallel computation to various computational stages is investigated. The greatest acceleration is achieved when processes in the catalyst layer are calculated in parallel.
Keywords	unsteady processes, parallel algorithm, OpenMP.
Citation	Inshakova A. S., Yazovtseva O. S., Gubaydullin I. M. ''Parallel algorithm for modeling an unsteady process in a catalyst layer'' [Electronic resource]. Proceedings of the International Scientific Youth School-Seminar "Mathematical Modeling, Numerical Methods and Software complexes" named after E.V. Voskresensky (Saransk, July 29-31, 2025). Saransk: SVMO Publ, 2025. - pp. 106-110. Available at: https://conf.svmo.ru/files/2025/papers/paper21.pdf. - Date of access: 30.08.2025.