This report presents the development of a fluid-structure interaction model using commercial Computational fluid dynamics software and in-house developed User Defined Function to simulate motion trout Department Mechanical Engineering, Widener University holding station in moving water stream. The oscillation used this study is based on observations swimming respirometry tank laboratory experim...

Proton exchange membrane (PEM) fuel cell performance depends substantially on the geometry, configuration of flow channels, and size. A right gas field pattern requires a homogeneous reactant distribution, low-pressure drop, good water management. This paper outlines numerical study, investigated influence U-type, Z-type, serpentine steady-state using CFD technique ANSYS FLUENT PEMFC module. Th...

With the increase of ship size, stiffness hull structure becomes smaller. This means that frequency wave excitation tends to be closer natural vibration, which in turn makes hydroelastic responses more significant. An accurate assessment loads and motion hulls is key design safety assessment. In this paper, coupled CFD (Computational Fluid Dynamics)-FEM (Finite Element Method) method used inves...

In the past decade, there has been renewed interest in wave energy harvesting utilizing oscillating water columns (OWC), one of most well-studied harnessing technologies. OWC, pneumatic power from ocean waves is converted to mechanical by Wells turbines. It should be noted, however, that such turbines tend perform poorly, have a limited operating range, and low efficiency. present study, we inc...

With the increasing share of renewable power resources turbomachines need to be operated under a wider range operating conditions including highly off-design regimes. Under such regimes an undesirable phenomenon blade flutter might occur and possibly destroy machine. To prevent this, intensive research is conducted by teams worldwide. Blade program at Institute Thermomechanics Czech academy sci...

INTRODUCTION Computational fluid dynamics (CFD) has recently seen increased use in the design of pharmaceutical inhalers. The use of CFD in the design of inhalers is made difficult by the complex nature of aerosol generation. At present, CFD has provided valuable insight into certain aspects of inhaler performance, though limitations in computational power have prevented the full implementation...

BACKGROUND AND PURPOSE CFD has been proved valuable for simulating blood flow in intracranial aneurysms, which may add to better rupture risk assessment. However, CFD has drawbacks such as the sensitivity to assumptions needed for the model, which may hinder its clinical implementation. 3D PC-MR imaging is a technique that enables measurements of blood flow. The purpose of this study was to com...

Nowadays, the major challenge of diesel engines development is simultaneous nitrogen oxides and soot emissions reduction without the thermal efficiency drop. Hence, different combustion concepts should be investigated to reach optimum emission and performance conditions in diesel engines without expensive aftertreatment systems. This paper presents the results of a study on a dual fuel (DF) eng...