Theoretical and Applied Mechanics Letters, 2021 The immersed boundary method has been widely used for simulating flows over complex geometries. However, its accuracy in predicting the statistics of near-wall turbulence has not been fully tested.
Fei Liao, Xiaolei Yang
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Wall-resolved large-eddy simulation of turbulent channel flows with rough walls
Theoretical and Applied Mechanics Letters, 2021 Turbulent flows over rough surfaces widely exist in nature and industry. Investigating its mechanism is of theoretical and practical significance. In this work we simulate the turbulent channel flow with rough walls using large-eddy simulation with rough
Shilong Li +3 more
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Numerical Simulations of the NREL Phase VI Wind Turbine with Low-Amplitude Sinusoidal Pitch
Fluids, 2023 Currently, most wind turbine performance analyses and simulations are performed assuming constant pitch and yaw angles during each rotation. Nevertheless, induced vibration or rotor imbalance can affect the pitch or yaw angle within each rotation.
Amir Akbarzadeh, Iman Borazjani
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A Computational Analysis for Active Flow and Pressure Control Using Moving Roller Peristalsis
Computation, 2021 Peristaltic motion arises in many physiological, medical, pharmaceutical and industrial processes. Control of the fluid volume rate and pressure is crucial for pumping applications, such as the infusion of intravenous liquid drugs, blood transportation ...
Iosif Moulinos +2 more
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Computational Analysis of Active and Passive Flow Control for Backward Facing Step
Computation, 2022 The internal steady and unsteady flows with a frequency and amplitude are examined through a backward facing step (expansion ratio 2), for low Reynolds numbers (Re=400, Re=800), using the immersed boundary method. A lower part of the backward facing step
Iosif Moulinos +2 more
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Curvilinear immersed boundary method for simulating fluid structure interaction with complex 3D rigid bodies [PDF]
Journal of Computational Physics, 2008 The sharp-interface CURVIB approach of Ge and Sotiropoulos [L. Ge, F. Sotiropoulos, A Numerical Method for Solving the 3D Unsteady Incompressible Navier-Stokes Equations in Curvilinear Domains with Complex Immersed Boundaries, Journal of Computational Physics 225 (2007) 1782-1809] is extended to simulate fluid structure interaction (FSI) problems ...
Borazjani, Iman +2 more
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A numerical method for solving the 3D unsteady incompressible Navier–Stokes equations in curvilinear domains with complex immersed boundaries [PDF]
Journal of Computational Physics, 2007 A novel numerical method is developed that integrates boundary-conforming grids with a sharp interface, immersed boundary methodology. The method is intended for simulating internal flows containing complex, moving immersed boundaries such as those encountered in several cardiovascular applications.
Ge, Liang, Sotiropoulos, Fotis
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A robust direct-forcing immersed boundary method with enhanced stability for moving body problems in curvilinear coordinates [PDF]
Computers & Fluids, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicolaou, L, Jung, SY, Zaki, TA
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A Newton–Krylov method with an approximate analytical Jacobian for implicit solution of Navier–Stokes equations on staggered overset-curvilinear grids with immersed boundaries [PDF]
Journal of Computational Physics, 2017 The explicit and semi-implicit schemes in flow simulations involving complex geometries and moving boundaries suffer from time-step size restriction and low convergence rates. Implicit schemes can be used to overcome these restrictions, but implementing them to solve the Navier-Stokes equations is not straightforward due to their non-linearity.
Hafez Asgharzadeh, Iman Borazjani
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High-order numerical methods for 2D parabolic problems in single and composite domains [PDF]
, 2017 In this work, we discuss and compare three methods for the numerical approximation of constant- and variable-coefficient diffusion equations in both single and composite domains with possible discontinuity in the solution/flux at interfaces, considering (
Epshteyn, Yekaterina +6 more
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