caa a22 4500 606198849 CHVBK 20210128100935.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s00348-015-1912-z doi (NATIONALLICENCE)springer-10.1007/s00348-015-1912-z A novel approach for reconstructing pressure from PIV velocity measurements [Elektronische Daten] [F. Auteri, M. Carini, D. Zagaglia, D. Montagnani, G. Gibertini, C. Merz, A. Zanotti] The purpose of this work is to develop an innovative procedure for reconstructing the pressure field from PIV velocity measurements of unsteady, incompressible flows. The proposed technique is based on a generalization of the Glowinski-Pironneau method for the uncoupled solution of the incompressible Navier-Stokes equations written in primitive variables and exploits a finite element discretization of the measurement grid. By virtue of the underlying mathematical formulation, the method is stable and more accurate than the other techniques proposed so far in the literature. The method is first applied to an exact solution of the Navier-Stokes equations, showing second-order convergence of the $$L^{\infty }$$ L ∞ error for the pressure variable. The robustness of the method with respect to stochastic perturbations in the velocity field is then tested and the results compared with other techniques proposed in the literature. Finally, the proposed technique is applied to both phase-averaged and time-resolved PIV velocity measurements of the flow around a pitching airfoil employed to investigate the dynamic stall. The reconstructed pressure is compared with direct pressure measurements, showing very encouraging results. Springer-Verlag Berlin Heidelberg, 2015 Auteri F. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut Carini M. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut Zagaglia D. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut Montagnani D. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut Gibertini G. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut Merz C. German Aerospace Center (DLR), Bunsenstrasse 10, 37073, Göttingen, Germany aut Zanotti A. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut Experiments in Fluids Springer Berlin Heidelberg 56/2(2015-02-01), 1-16 0723-4864 56:2<1 2015 56 348 https://doi.org/10.1007/s00348-015-1912-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-1912-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Auteri F. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut NATIONALLICENCE 700 1- Carini M. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut NATIONALLICENCE 700 1- Zagaglia D. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut NATIONALLICENCE 700 1- Montagnani D. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut NATIONALLICENCE 700 1- Gibertini G. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut NATIONALLICENCE 700 1- Merz C. German Aerospace Center (DLR), Bunsenstrasse 10, 37073, Göttingen, Germany aut NATIONALLICENCE 700 1- Zanotti A. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/2(2015-02-01), 1-16 0723-4864 56:2<1 2015 56 348