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RISNumerical Study of Capillary Flow in Microchannels With Alternate Hydrophilic-Hydrophobic Bottom Wall
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A two-dimensional numerical simulation of flow in patterned microchannel with alternate layers of different sizes of hydrophilic and hydrophobic surfaces at the bottom wall is conducted here. The ...
Investigation of Combined Electro-Osmotic and Pressure-Driven Flow in Rough Microchannels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is carried out to investigate the influence of surface roughness in combined electro-osmotic and pressure-driven flow in microchannel. Two-dimensional theoretical model is developed ...
Losses in Very Long Insulated Steam Pipelines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical method has been developed for calculating the losses and property variations in very long insulated steam pipelines. This method is based on the fundamental equations of compressible ...
Numerical Solution of Stratified Flow Into a Sink: A Criterion for Selective Withdrawal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steady flow of an inviscid, stratified fluid into a line sink is analyzed numerically using a finite difference scheme. A criterion is proposed to determine the critical Froude number below ...
Radial and Axial Variations in Transient Pressure Waves Transmitted Through Liquid Transmission Lines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An implicit factorization method has been developed for solving numerically the complete two-dimensional Navier-Stokes and continuity equations for pressure transients in a slightly compressible ...
Improving Startup Behavior of Fluid Couplings Through Modification of Runner Geometry: Part I—Fluid Flow Analysis and Proposed Improvement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For the use as a startup device the characteristic of a hydrodynamic coupling has to be steep at the nominal high speed operation condition and flat in the range of lower speed ratios. The ...
On the Derivation of Pressure Field Distribution at the Entrance of a Rectangular Capillary
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In capillary flow, integral momentum approach is used to derive the governing equation, which requires an expression for the pressure field at the inlet of the capillary. Generally, the pressure ...
Numerical Analysis of Turbulent Flow in Fluid Couplings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical simulation of three-dimensional unsteady turbulent flows in fluid couplings was carried out by numerically solving Navier-Stokes equations in a rotating coordinate system. The standard ...
Improving Startup Behavior of Fluid Couplings Through Modification of Runner Geometry: Part II—Modification of Runner Geometry and Its Effects on the Operation Characteristics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In Part I of this paper, we analyzed the turbulent flow structure and the torque transport characteristics of a fluid coupling. The results suggested certain modifications of the geometry which ...
Modeling of a Coal-Fired Natural Circulation Boiler
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modeling of a natural circulation boiler for a coal-fired thermal power station is presented here. The boiler system is divided into seven subcomponents, and for each section, models based on ...