Browsing NTNU Open by Author "Steinbach, Olaf"
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On the initial higher-order pressure convergence in equal-order finite element discretizations of the Stokes system
Ramalho Queiroz Pacheco, Douglas; Steinbach, Olaf (Peer reviewed; Journal article, 2022)In incompressible flow problems, the finite element discretization of pressure and velocity can be done through either stable spaces or stabilized pairs. For equal-order stabilized methods with piecewise linear discretization, ... -
Optimal Pressure Recovery Using an Ultra-Weak Finite Element Method for the Pressure Poisson Equation and a Least-Squares Approach for the Gradient Equation
Ramalho Queiroz Pacheco, Douglas; Steinbach, Olaf (Journal article; Peer reviewed, 2023)Reconstructing the pressure from given flow velocities is a task arising in various applications, and the standard approach uses the Navier–Stokes equations to derive a Poisson problem for the pressure p. That method, ...