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Astronomische nachrichten, Nos 2570-2571
No full textR. R. Astronomische nachrichten, Nos 2570-2571. In: Bulletin astronomique, tome 1, 1884. pp. 105-110
Chicago, Rock Island & Pacific (RI) 2570
No full textA photograph print of Chicago, Rock Island & Pacific (CRIP, RI, or ROCK) 2570, 2-8-2 (BLW, class K-60), Shawnee, OK
Block Card 2570 Kress Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Bungalow Style | 2570 Kress Street (Toledo, Ohio) | Dwelling | McCaskes Auburndale Addition | Auburndale Area (Toledo, Ohio
Corrigenda for vol. 76, Pages 2570-2577
No full text Pages 2570–2577: C.K. Sen, T. Rankinen, S. Vaisanen, and R. Rauramaa. “Oxidative stress after human exercise: effect of N-acetylcysteine supplementation.” Page 2574, in Fig.3, blood GSSG values are expressed in μM not mM. </jats:p
Corrigenda for vol. 76, Pages 2570-2577
No full text Pages 2570–2577: C.K. Sen, T. Rankinen, S. Vaisanen, and R. Rauramaa. “Oxidative stress after human exercise: effect of N-acetylcysteine supplementation.” Page 2574, in Fig.3, blood GSSG values are expressed in μM not mM. </jats:p
Block Card 2570 Bittersweet Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Split-Level Style | 2570 Bittersweet Drive (Toledo, Ohio) | Dwelling | Amended Plat of Copland Heights (Toledo, Ohio) | South Toledo Area (Toledo, Ohio
Block Card 2570 106th Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Dwelling | 2570 106th Street (Toledo, Ohio) | Shore Acres (Toledo, Ohio) | Point Place (Toledo, Ohio) | North Toledo Area (Toledo, Ohio) | Colonial Styl
Block Card 2570 Ayers Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Side gabled | 2570 Ayers Street (Toledo, Ohio) | Dwelling | Stebbins, Hall, Ford, and Baldys Addition (Toledo, Ohio) | Auburndale Area (Toledo, Ohio) | Bungalow Styl
Deterministic Stress Modeling for Multistage Compressor Flowfields
No full textUnsteadiness is one of the main characteristics in turbomachinery flows. Local unsteady changes in static pressure must exist within a turbomachine in order for that machine to exchange energy with the fluid. The primary reason for unsteady effects lies in the interaction between moving and stationary bade rows.
The industrial design process of aero-engines and gas turbines is still based on Reynolds-averaged Navier-Stokes (RANS) techniques where the coupling of blade rows is carried out by mixing-planes. However, this methodology does not cover deterministic unsteadiness in an adequate way. For standard aero-optimization, detailed unsteadiness is not essential to the designer of turbomachines but rather its effect on the time averaged solution. The time averaged deterministic unsteadiness can be expressed in terms of deterministic stresses.
The paper presents two different modeling strategies for deterministic stresses that constitute an improvement of the conventional steady mixing-plane approach. Whilst one of the presented models operates with deterministic flux terms based on preliminary unsteady simulations, the other one, a novel transport model for deterministic stress, is a stand-alone approach based on empirical correlations and a wide range of numerical experiments. A 4.5 stage transonic compressor is analyzed regarding blade row interaction effects and their impact on the time averaged solution.
The two models are applied to the compressor and their
solutions are compared to conventional mixing-plane, time accurate and experimental data. The results for the speedline, the wake shapes, the radial distributions and the rotor blade loadings show that the deterministic stress models strongly improve the RANS solution towards the time accurate and the experimental methods
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