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RISInvestigation of Performance of Heat Pipe as Heat Exchanger Using Alternative Refrigerants
Publisher: American Society of Civil Engineers
Abstract: An experimental and theoretical study was performed to investigate the thermal performance of heat pipes as a heat exchanger. A series of experiments was conducted using R410A, R134a, R22, and R407C as working fluids. The ...
The Stretching of a Viscoplastic Thread of Liquid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The problem of stretching a viscoplastic (yield-stress) thread of a liquid hanging vertically is considered. The length of the thread at later times and the time at which it ruptures is ...
The Taylor Vortex Regime in the Flow Between Eccentric Rotating Cylinders
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With the exception of very small clearance ratios, transition to turbulence in journal bearings is likely to be preceded by the appearance of Taylor vortices. The resultant regime may extend ...
100 Years Later: Reflecting on Alfred Wegener’s Contributions to Tornado Research in Europe
Publisher: American Meteorological Society
Abstract: AbstractAlfred Wegener (1880?1930) was a leading geophysicist, atmospheric scientist, and an Arctic explorer who is mainly remembered today for his contributions to the theory of continental drift. Less well known are his ...
An Adiabatic Solution of Misaligned Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper presents an adiabatic analysis of misaligned journal bearings. The misalignment is allowed to vary in magnitude as well as in direction with respect to the bearing boundaries. Results ...
Evolution Process of Natural Rock Joint Roughness during Direct Shear Tests
Publisher: American Society of Civil Engineers
Abstract: Surface roughness is one of the most important parameters that have significant influence on the mechanical and hydraulic characteristics of rock joints. To investigate the evolution of surface roughness under normal and ...
Power Losses Due to Secondary Flow Between Rotating Eccentric Cylinders
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The presence of secondary vortex motions in the flow between eccentric rotating cylinders is shown to increase the power input requirements to the inner rotating cylinder at any eccentricity ...
Proof of Nondeterministic Polynomial-Time Complete Problem for Soil Slope-Stability Evaluation
Publisher: American Society of Civil Engineers
Abstract: Generally, slope-stability evaluation involves two coupled tasks: locating the critical slip surface and calculating its corresponding factor of safety. Various assessment methods have emerged in the past few decades, and ...
Experimental Investigation of the Effect of Nanofluid on Thermal Energy Storage System Using Clathrate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Climatic change illustrates the need to new policy of load management. In this research, a special design of thermal energy storage (TES) system, with an appropriate storage medium that is suitable for residential and ...
Rain Microstructure and Erosivity Relationships under Pressurized Rainfall Simulator
Publisher: American Society of Civil Engineers
Abstract: Rain simulators have been used extensively in order to assess the interaction between rainfall and land surface. The main objective of a rain simulator is to produce rain with characteristics similar to natural rainfall ...