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A pressure-robust virtual element method for the Stokes problem
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DOI：10.1051/m2an/2025076.png)
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Abstract
En 中文
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 coefficient, and achieve the optimal convergence rates. Numerical results confirm the pressure-robust property and the uniform convergence of the method, especially when higher-order approximations are used.
Keywords:
Nonconforming virtual element
Stokes problem
pressure-robustness
divergence-preserving reconstruction
general meshes
Journal
E
IF:
2.2
Papers:
70
Citations:
0