2 edition of Mean-flow measurements of the flow field diffusing bend found in the catalog.
Mean-flow measurements of the flow field diffusing bend
Oden J. McMillan
by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va
Written in English
|Statement||O.J. McMillan ; prepared for Lewis Research Center.|
|Series||NASA contractor report -- 3634., NASA contractor report -- NASA CR-3634.|
|Contributions||Lewis Research Center., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., Nielsen Engineering & Research.|
|The Physical Object|
|Pagination||viii, 158 p. :|
|Number of Pages||158|
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Using the area ratio and the length to width ratio, the design was checked against a chart of diffuser flow regimes from Japikse’s book, “Introduction to Turbomachinery” (Figure 5). The redesigned diffuser falls in the region of “no appreciable stall” which indicates that the diffuser will function nearly ideally. This condition governs the transfer of energy between the acoustic field and the flow field. Sound absorption by vorticity shedding The presence of mean flow in the pipe influences the rate of sound radiated to the far field. The results presented in Figure 5 show that acoustic losses due to vorticity is. 16 dominantly a low frequency process.
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Mean-flow measurements of the flow field diffusing bend. [Washington, D.C.]: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va.: For sale by NTIS, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors.
Little evidence of the first vortex pair remains at the exit of the diffusing bend. The mass-averaged total pressure loss is found to be insensitive to the range of inlet-flow variations considered herein. However, the rate of generation of this loss along the length of the diffusing bend differs between the two test by: 7.
McMillan, O. J.,“Mean-Flow Measurements of the Flow Field Diffusing Bend,” NASA Contractor Report Wellborn, S. R., Reichert, B. and Okiishi, T.
H.,“An Experimental Investigation of the Flow in a Diffusing S-Duct,” AIAA presented at the AIAA/SAE/ASME/ASEE 28th Joint Propulsion by: 3. Experimental and Numerical Studies of Flow in a Logarithmic Spiral Curved Diffuser. “Mean-Flow Measurements of the. Flow Field Diffusing Bend,” NASA contractor report Numerical and experimental investigations of turbulent flow in a ° curved diffuser.
"Mean-Flow Measurem ents of the. Flow Field Diffusing Bend," N ASA contractor report. Detailed measurements of mean flow and turbulence quantities have been performed in the vicinity of the trailing edge of a supercritical NLR airfoil using Laser Doppler Anemometry.
The two-dimensional model, put at an angle of attack of. Engineering Turbulence Modelling and Experiments 4 Mean flow measurements show that the location of the maximum cross-flow velocity is within the log-law region for the streamwise velocity profiles.
Measurements of the unsteady flow field and the turbulence properties concerning the blade wakes have been made and reported. Determination of VOCs in Ambient Air at PPBV for the Clean Air Status and Trends Network (CASTNet) Michael G. Winslow, Dwight F.
Roberts, and Michael E. Keller Development of Methods for Sampling and Analysis of Vent Stream Emissions From Glycol Dehydration Units in the Natural Gas Industry Larry D. Ogle, Curtis O. Rueter, Dirk L. Reif, et al. Session 8. American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA In generalizing the distribution and development of mean-flow and tur- bulence characteristics in jet and wake flows, Naudascher reduced the flow pattern in the near field of disk and ellipsoid wakes (Figure ) to a similarity form by introducing a length scale 4 which is a func- tion of measured velocity distributions.
Experimental Study of Flow Field in Rectangular Sectioned 90 Degree Bend of an APU Style Inlet Initial Subscale Performance Measurements of the AIAA Dual Separate Flow Reference (DSFR) Nozzle.
Kevin L. Mikkelsen Computational and Experimental Results for Flows in a Diffusing S-Duct without and with Flow Control Devices. Anne-Laure Delot. The suspended sediment from the Yellow River, Changjiang River, and the old Yellow River Delta in north Jiangsu is the majority of this muddy body [Dong et al., ; Wang et al., ].
Saito et al. concluded that each year × 10 8 t of the suspended sediment is diffused off the old Yellow River delta. Yuan et by: Substituting these expressions for each of the flow variables into the boundary layer equations (Equati 43, and 45) and assuming the mean flow to be steady, incompressible (: C constant) with constant properties, and using the well established time averaging procedures,1–4 the following governing equations are obtained: Continuity Ùu.
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Hah, Large eddy simulation of transonic flow field in NASA ro in 47th AIAA Aerospace Sciences Meeting (). AIAA Paper Number AIAA–– Google Scholar C. Hah, M. Voges, M. Mueller, H.P.
Schiffer, Investigation of unsteady flow behaviour in transonic compressor rotors with LES and PIV by: 1. One of the main properties of a turbulent flow under identical initial- and boundary conditions is that the flow is asymptotic, which means they are identical in the mean flow characteristics.
Assuming a potential flow, this can be used for turbulent flows to. Also, the flow field for this case has never been measured. The present study makes these flow field measurements using a custom PIV setup, and also makes force measurements using a custom force balance.
The flow field measurements measure the recirculating flow in the bubble, and average profiles are constructed downstream of.
Effect Of Magnetic Field On Steady Blood Flow Through An Inclined Circular Tube Abstract: The present paper is devoted to study the flow of an incompressible viscous, electrically conducting fluid (blood) in a rigid inclined circular tube in the presence of transverse magnetic field.Full text of "NASA Technical Reports Server (NTRS) Aeronautical engineering: A continuing bibliography with indexes (supplement )" See other formats.Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online.
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