This method demonstrates optimal convergence rates and pressure robustness in simulations, suggesting its suitability for fluid dynamics applications.
We present an arbitrary-order pressure-robust nonconforming virtual element method for the Stokes problem. Based on the local subtriangulations of polygons and the requirement of recovering the orthogonality between the velocity virtual space and the gradient forces, we introduce a computable reconstruction operator by modifying the classical Brezzi–Douglas–Marini interpolation operator. Under the shape regularity conditions, we show that the broken H1-semi-norm and L2-norm estimates of the velocity are independent of the pressure and the viscosity coefcient, and achieve the optimal convergence rates. Numerical results confrm the pressure-robust property and the uniformconvergence of the method, especially when higher-order approximations are used.
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Fang et al. (2025) studied this question.
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