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1. Hydromagnetic Steady Flow of Maxwell Fluid over a Bidirectional Stretching Surface with Prescribed Surface Temperature and Prescribed Surface Heat Flux.

Author

Shehzad, Sabir Ali, Alsaedi, Ahmad, and Hayat, Tasawar

Subjects
*MAGNETOHYDRODYNAMIC waves, *STEADY-state flow, *HEAT flux, *SURFACE temperature, *BOUNDARY layer (Aerodynamics), *STRETCH (Physiology), *APPLIED mathematics
Abstract

This paper investigates the steady hydromagnetic three-dimensional boundary layer flow of Maxwell fluid over a bidirectional stretching surface. Both cases of prescribed surface temperature (PST) and prescribed surface heat flux (PHF) are considered. Computations are made for the velocities and temperatures. Results are plotted and analyzed for PST and PHF cases. Convergence analysis is presented for the velocities and temperatures. Comparison of PST and PHF cases is given and examined. [ABSTRACT FROM AUTHOR]

Published
2013
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2. Continuous Spectrum of the Rotordynamic Forces on a Four Bladed Inducer

Author

Lucio Torre, Angelo Pasini, Angelo Cervone, and Luca d'Agostino

Subjects
Engineering, Experimental techniques, Continuous spectrum, Rotordynamic Fluid Forces, Rotordynamics, Swirling flow, Cavitating pump rotordynamic test facility, Cavitation number, law.invention, Liquid temperature, law, Whirl ratio, Inducer, Turbopumps, Inducers, Rotordynamic forces, Experimental campaign, Physics, Cavitation, Test facility, business.industry, Rotor (electric), Turbomachines, Mechanical Engineering, Flow coefficients, Structural engineering, Axial inducers, Industrial engineering, Classical mechanics, Flow coefficient, business, Industrial engineering, Cavitation, Cavitating pump rotordynamic test facility, Rotordynamic forces, Turbopumps
Abstract

The paper illustrates the results of an experimental campaign conducted in the CPRTF (Cavitating Pump Rotordynamic Test Facility) at ALTA S.p.A., aimed at characterizing the rotordynamic forces acting on a whirling four-bladed, tapered-hub, variable-pitch inducer, designated as DAPAMITO4. The roles of the imposed whirl motion of the rotor, flow coefficient, cavitation number and liquid temperature have been investigated. A novel experimental technique, consisting in measuring the continuous spectra of the forces as functions of the whirl ratio, has been developed and validated. This technique gives the possibility of extracting valuable information from the experiments by clearly identifying the qualitative and quantitative behavior of the forces, and is therefore useful to catch the unlikely foreseeable complexity of the rotordynamic forces and their consequences on the stability of axial inducers.Copyright © 2011 by ASME

Published
2011

3. Hydromagnetic Steady Flow of Maxwell Fluid over a Bidirectional Stretching Surface with Prescribed Surface Temperature and Prescribed Surface Heat Flux

Author

Sabir Ali Shehzad, A. Alsaedi, and Tasawar Hayat

Subjects
Surface (mathematics), Surface Properties, Flow (psychology), lcsh:Medicine, Aerospace Engineering, Fluid Mechanics, Physical Chemistry, Surface heat flux, Engineering, Rheology, Industrial Engineering, Fluid dynamics, lcsh:Science, Physics, Multidisciplinary, Deformation (mechanics), Magnetic Phenomena, Mechanical Engineering, Applied Mathematics, lcsh:R, Temperature, Water, Classical Mechanics, Numerical Analysis, Computer-Assisted, Mechanics, Models, Theoretical, Chemical Engineering, Magnetic field, Chemistry, Boundary layer, Computer Science, Thermodynamics, lcsh:Q, Physical Laws and Principles, Algorithms, Mathematics, Research Article, Computer Modeling
Abstract

This paper investigates the steady hydromagnetic three-dimensional boundary layer flow of Maxwell fluid over a bidirectional stretching surface. Both cases of prescribed surface temperature (PST) and prescribed surface heat flux (PHF) are considered. Computations are made for the velocities and temperatures. Results are plotted and analyzed for PST and PHF cases. Convergence analysis is presented for the velocities and temperatures. Comparison of PST and PHF cases is given and examined.

Published
2013