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Addy, A.L. Tsai, Ping-Ho 2011-05-07T12:32:58Z 2011-05-07T12:32:58Z 10000-01-01 1990 A computer program has been developed for both two-dimensional compressible and incompressible turbulent flows around airfoils. Numerical solutions have been obtained by solving the steady-state Reynolds-averaged Navier-Stokes equations in primitive variable form. The standard k-$\varepsilon$ turbulence model was employed and a compression turbulence model was also discussed. Based on a non-staggered arrangement on a body-fitted grid system, the discretized transport equations were solved either by a hybrid or a second-order upwind differencing scheme. A multiple pressure correction procedure with implicit density treatment has been used. The solutions were obtained through an under-relaxed iterative process. Various cases of flow past NACA 0012 and 4412 airfoils were examined first. The experimental data available included cases with freestream Mach numbers varying from 0 to 0.799, the chord Reynolds number up to 9 $\times$ 10$\sp6$, and the angle of attack ranging from 0$\sp\circ$ to 13.87$\sp\circ$. The results were good when compared with experimental data. Many cases of incompressible and compressible flows past an unconventional airfoil were then computed. The freestream Mach number varied from 0 to 0.9 with the chord Reynolds number of 3.9 $\times$ 10$\sp6$. The general behavior of the unconventional airfoil is presented. Made available in DSpace on 2011-05-07T12:32:58Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9021770.pdf: 3276422 bytes, checksum: 87e7f209fc27a7ff507d177bb1f7aebd (MD5) Previous issue date: 1990 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:42:29Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:18:29-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9021770 (UMI)AAI9021770 http://hdl.handle.net/2142/20229 eng Copyright 1990 Tsai, Ping-Ho Engineering, Mechanical Numerical calculations for flows past an unconventional airfoil text Mechanical Science and Engineering Mechanical Science and Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.