This paper investigates a modification of the fictitious domain method based on extension through lower-order coefficients, with a prescribed pressure boundary condition, for the nonlinear unsteady Navier–Stokes equations governing the motion of an incompressible homogeneous fluid in a bounded three-dimensional domain....
Zhanybek Baitulenov, A. Temirbekov, N. Temirbekov et al.· Mathematics· 0 citations
The object of this study is the propagation of hydroacoustic disturbances in a gas-lift well, where the main state variables are pressure and volumetric flow rate. The problem solved is the development of a numerical method for hydroacoustic problems, in which unknown initial distributions or harmonic input parameters...
N. Temirbekov, A. Turarov, S. Kasenov et al.· Eastern-European Journal of...· 0 citations
This study addresses the inverse problem of parameter identification in mathematical models of tumor growth under limited and noisy experimental data. Three classical growth models—logistic, Richards, and Gompertz—are investigated in the context of structural and practical identifiability. It is demonstrated that, desp...
Zh. M. Bektemessov, L. Cherfils, Bekzat Sultan et al.· Mathematics· 0 citations
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