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RISBolus Contaminant Dispersion in Oscillatory Tube Flow With Conductive Walls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dispersion of a bolus contaminant in a straight tube with oscillatory flows and conductive walls is solved by using a derivative-expansion method. Using asymptotic methods when small conductance ...
Bolus Contaminant Dispersion for Oscillatory Flow in a Curved Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The dispersion of a bolus of soluble contaminant in a curved tube during volume-cycled oscillatory flows is studied. Assuming a small value of δ (the ratio of tube radius to radius of ...
Steady Propagation of a Liquid Plug in a Two-Dimensional Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, we investigate the steady propagation of a liquid plug within a two-dimensional channel lined by a uniform, thin liquid film. The Navier-Stokes equations with free-surface boundary ...
Pulsatile Blood Flow and Gas Exchange Across a Cylindrical Fiber Array
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The pulsatile blood flow and gas transport of oxygen and carbon dioxide through a cylindrical array of microfibers are numerically simulated. Blood is modeled as a homogeneous Casson fluid, and ...
A Mathematical Model of Alveolar Gas Exchange in Partial Liquid Ventilation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In partial liquid ventilation (PLV), perfluorocarbon (PFC) acts as a diffusion barrier to gas transport in the alveolar space since the diffusivities of oxygen and carbon dioxide in this medium ...
Pulsatile Flow and Mass Transport Over an Array of Cylinders: Gas Transfer in a Cardiac-Driven Artificial Lung
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The pulsatile flow and gas transport of a Newtonian passive fluid across an array of cylindrical microfibers are numerically investigated. It is related to an implantable, artificial lung where ...
Pulsatile Blood Flow and Oxygen Transport Past a Circular Cylinder
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The fundamental study of blood flow past a circular cylinder filled with an oxygen source is investigated as a building block for an artificial lung. The Casson constitutive equation is used ...
Pulsatile Flow and Oxygen Transport Past Cylindrical Fiber Arrays for an Artificial Lung: Computational and Experimental Studies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of time-dependent flows on oxygen transport from hollow fibers was computationally and experimentally investigated. The fluid average pressure drop, a measure of resistance, and the ...
Steady-State Pleural Fluid Flow and Pressure and the Effects of Lung Buoyancy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Both theoretical and experimental studies of pleural fluid dynamics and lung buoyancy during steady-state, apneic conditions are presented. The theory shows that steady-state, top-to-bottom ...
Flow Limitation in Liquid-Filled Lungs: Effects of Liquid Properties
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow limitation in liquid-filled lungs is examined in intact rabbit experiments and a theoretical model. Flow limitation (“choked” flow) occurs when the expiratory flow reaches a maximum value ...