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| Author | : Avery J. Beauregard (CAPT, USAF.) |
| Publisher | : |
| Total Pages | : |
| Release | : 1976 |
| Genre | : Mass transfer |
| ISBN | : |
| Author | : A. J. Beauregard |
| Publisher | : |
| Total Pages | : 32 |
| Release | : 1976 |
| Genre | : |
| ISBN | : |
Given a Fortran code that solved for the characteristics of a laminar, transitional, and turbulent boundary layer, the problem was to modify the existing program to predict the boundary layer over a flat plate and sharp nosed axisymmetric cone with mass transfer as a boundary condition at the surface of the model. The surface of the model was maintained at a constant temperature, and only the cases in which air was the transferred gas were studied. To solve this problem the boundary layer was described by the standard boundary layer equations for continuity, momentum, and energy. Incorporating mass transfer as a boundary condition, the governing equations underwent the transformation of Probstein-Elliott and Levy-Lees. The resulting equations and boundary conditions were solved by finite differencing techniques for nondimensionalized velocity components and temperature at a finite number of nodes in the boundary layer field of flow.
| Author | : Fred Culick |
| Publisher | : |
| Total Pages | : 80 |
| Release | : 1960 |
| Genre | : Boundary layer |
| ISBN | : |
| Author | : J. Boccio |
| Publisher | : |
| Total Pages | : 50 |
| Release | : 1972 |
| Genre | : Equations of motion |
| ISBN | : |
An analysis of the incompressible turbulent boundary layer, developing under the combined effects of mass transfer and pressure gradient, is presented in this paper. A strip-integral method is employed whereby two of the three governing equations are obtained by integrating the combined momentum and continuity equation to 50 percent and 100 percent, respectively, of the boundary-layer height. The latter equation is the usual momentum-integral equation; the former equation requires specification of shear. Accordingly, Clauser's equilibrium eddy-viscosity law is assumed valid at this point. The third and final equation is obtained by specifying that Stevenson's velocity profiles apply throughout the domain of interest, from which a skin-friction law can be derived. Comparisons of the numerical results with the experiments of McQuaid, which include combined effects of variable pressure gradient and mass transfer, show good agreement.
| Author | : Edmund E. Callaghan |
| Publisher | : |
| Total Pages | : 724 |
| Release | : 1953 |
| Genre | : Heat |
| ISBN | : |
An analysis of combined heat and mass transfer from a flat plate has been made in terms of Prandtl's simpified physical concept of the turbulent boundary layer. The results of the analysis show that tor conditioins of reasonably small heat and mass transfer, the ratio of the mass- and heat-transfer coefficients is dependent on the Reynolds number of the boundary layer, the Prandtl number of the medium of diffusion, and the Schmidt number of the diffusing fluid in the medium of diffusion. For the particular case of water evaporating into air, the ratio of mass-transfer coefficient to heat-transfer coefficient is found to be slightly greater than unity.
| Author | : Howard Sewall Bryant |
| Publisher | : |
| Total Pages | : 398 |
| Release | : 1956 |
| Genre | : |
| ISBN | : |
| Author | : C. Economos |
| Publisher | : |
| Total Pages | : 92 |
| Release | : 1972 |
| Genre | : Transformations (Mathematics) |
| ISBN | : |
A generalized form of the Coles compressibility transformation is utilized to analyze compressible turbulent boundary-layer flows. The generalization in the transformation is distinguished by specifying a stretching parameter that depends upon both space variables rather than on only the streamwise coordinate. This modification is shown to eliminate the distortion observed in the wake region of the transformed velocity profiles. For zero pressure gradient flows, predictions based upon the analysis are consistently superior with predictions due to Spalding-Chi and Baronti-Libby. A wide range of experimental data have been examined with Mach numbers ranging as high as 8, wall to free stream total temperature ratios as low as 0.25 and momentum thickness Reynolds numbers up to approximately one million.
| Author | : Fred E. C. Culick |
| Publisher | : |
| Total Pages | : 64 |
| Release | : 1960 |
| Genre | : Boundary layer |
| ISBN | : |
| Author | : Wade H. Shafer |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 304 |
| Release | : 2013-11-21 |
| Genre | : Science |
| ISBN | : 1475757824 |
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for lnformation and Numerica/ Data Analysis and Synthesis (C/NDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficia! to the academic and general scientific and technical community. After fi ve years of this joint undertaking we had concluded that it was in the interest of ali concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and App/ied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. Ali back issues can also be ordered from Plenum. We have reported in Volume 21 (thesis year 1976) a total of 10,586 theses titles from 25 Canadian and 219 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work.
| Author | : F. W. Fenter |
| Publisher | : |
| Total Pages | : 94 |
| Release | : 1955 |
| Genre | : Aerodynamics, Supersonic |
| ISBN | : |
