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Numerical investigation of the hydrodynamics of carangiform swimming in the transitional and inertial flow regimes
Numerical simulation helps elucidate the results of previous experiments with live fish, underscore the importance of scale (Re) effects on the hydrodynamic performance of carangiform swimming, and help explain why in nature this mode of swimming is typically preferred by fast swimmers. Expand
A hybrid Cartesian/immersed boundary method for simulating flows with 3D, geometrically complex, moving bodies
A numerical method is developed for solving the 3D, unsteady, incompressible Navier-Stokes equations in Cartesian domains containing immersed boundaries of arbitrary geometrical complexity movingExpand
Curvilinear immersed boundary method for simulating fluid structure interaction with complex 3D rigid bodies
Numerical experiments for fluid structure interaction (FSI) problems involving complex 3D rigid bodies undergoing large structural displacements suggest that both the properties of the structure and local flow conditions can play an important role in determining the stability of the FSI algorithm. Expand
Vorticity dynamics of a bileaflet mechanical heart valve in an axisymmetric aorta
We present comprehensive particle image velocimetry measurements and direct numerical simulation (DNS) of physiological, pulsatile flow through a clinical quality bileaflet mechanical heart valveExpand
On the role of form and kinematics on the hydrodynamics of self-propelled body/caudal fin swimming
Body shape is found to somewhat affect the small-scale features and complexity of the vortex rings shed by the various swimmers and form and kinematics have little overall effect on the 3-D structure of the wake, which mainly depends on the Strouhal number. Expand
A three-dimensional (3D) numerical model for predicting steady, in the mean, turbulent flows through lateral intakes with rough walls is developed, validated, and employed in a parametric study. TheExpand
A general reconstruction algorithm for simulating flows with complex 3D immersed boundaries on Cartesian grids
In the present note a general reconstruction algorithm for simulating incompressible flows with complex immersed boundaries on Cartesian grids is presented. In the proposed method an arbitraryExpand
A numerical method for solving the 3D unsteady incompressible Navier-Stokes equations in curvilinear domains with complex immersed boundaries
The ability of the method to simulate flows with complex, moving immersed boundaries is applied to calculate pulsatile, physiological flow through a mechanical, bileaflet heart valve mounted in a model straight aorta with an anatomical-like triple sinus. Expand
Numerical investigation of the hydrodynamics of anguilliform swimming in the transitional and inertial flow regimes
The propulsive efficiency of anguilliform swimmers at St* is not an increasing function of Re but instead is maximized in the transitional regime and the form drag decreases while viscous drag increases as St increases. Expand
Vortex-induced vibrations of two cylinders in tandem arrangement in the proximity–wake interference region
It is shown that even though the wake transitions to a weakly three-dimensional state when the gap flow is active, the three- dimensional modes are too weak to affect the dynamic response of the system, which is found to be identical to that obtained from the two-dimensional computations. Expand