Hypertrophied and failing cardiac myocytes generally show alterations in intracellular Ca2+ handling associated with changes in the contractile function and arrhythmogenicity. The cardiac Na+-Ca2+ exchange (NCX) is an important mechanism for Ca2+ extrusion and cell relaxation. Its possible involvement in changes of excitation-contraction coupling (EC-coupling) with disease remains uncertain. We...

This research modifies the leading-edge structure of NACA 0015 and 4415 to resemble nose a beluga whale. The focus this modification is improve airfoil's aerodynamic performance investigate changing fluid flow patterns. Numerical equation used RANS combined with k-ε turbulence model. Mesh independence test shows that mesh 200 elements best mesh. Validation results reveal CFD data can follow tre...

The choice of geometrical shape of the blades has a considerable effect on aerodynamic performance and flow characteristics in axial compressors. In this paper, the effects of the blades shape on the aerodynamic design characteristics are investigated based on Streamline Curvature Method (SCM). Initially, the Streamline Curvature Method (SCM) is used for designing a two-stage axial compressor. ...

This paper presents a means for reducing the torque variation during the revolution of a vertical-axis water turbine (VAWaterT) by increasing the blade number. For this purpose, twodimensional CFD analyses have been performed on a straight-bladed Darrieus-type rotor. After describing the computational model and the relative validation procedure, a complete campaign of simulations, based on full...

Numerical simulation of aircraft’s flutter is rather expensive and time-consuming. In order to save expense and calculating time, we apply first-order approximate conditions to solve the unsteady transonic Euler equations coupled with aeroelastic equations. Assuming that the airfoil is thin and undergoes small deformation, we implement wall boundary conditions on nonmoving mean wall positions. ...