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Study Of Water Droplet Trajectories In The Nasa Lewis Research Center Icing Research Tunnel Irt
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Book Synopsis Study of Water Droplet Trajectories in the NASA Lewis Research Center Icing Research Tunnel (IRT) by : Andrew L. Reehorst
Download or read book Study of Water Droplet Trajectories in the NASA Lewis Research Center Icing Research Tunnel (IRT) written by Andrew L. Reehorst and published by . This book was released on 1994 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Water Droplet Trajectories in the NASA Lewis Research Center Icing Research Tunnel (IRT) by :
Download or read book Study of Water Droplet Trajectories in the NASA Lewis Research Center Icing Research Tunnel (IRT) written by and published by . This book was released on 1996 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Water Droplet Trajectories Within the NASA Icing Research Tunnel by : Andrew L. Reehorst
Download or read book Investigation of Water Droplet Trajectories Within the NASA Icing Research Tunnel written by Andrew L. Reehorst and published by . This book was released on 1995 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Liquid Water Content and Droplet Size Calibration of the NASA Lewis Icing Research Tunnel by :
Download or read book Liquid Water Content and Droplet Size Calibration of the NASA Lewis Icing Research Tunnel written by and published by DIANE Publishing. This book was released on with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721800100 Total Pages :32 pages Book Rating :4.8/5 (1 download)
Book Synopsis Additional Study of Water Droplet Median Volume Diameter (MVD) Effects on Ice Shapes by : National Aeronautics and Space Administration (NASA)
Download or read book Additional Study of Water Droplet Median Volume Diameter (MVD) Effects on Ice Shapes written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports the result of an experimental study in the NASA Glenn Icing Research Tunnel (IRT) to evaluate how well the MVD-independent effect identified previously might apply to SLD conditions in rime icing situations. Models were NACA 0012 wing sections with chords of 53.3 and 91.4 cm. Tests were conducted with a nominal airspeed of 77 m/s (150 kt) and a number of MVD's ranging from 15 to 100 m with LWC of 0.5 to 1 g/cu m. In the present study, ice shapes recorded from past studies and recent results at SLD and Appendix-C conditions are reviewed to show that droplet diameter is not important to rime ice shape for MVD of 30 microns or larger, but for less than 30 m drop sizes a rime ice shape transition from convex to wedge to spearhead type ice shape is observed. Tsao, Jen-Ching and Anderson, David N. Glenn Research Center NASA/CR-2005-213853, AIAA Paper 2004-0413, E-15223
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Icing Cloud Calibration of the NASA Glenn Icing Research Tunnel by : Robert F. Ide
Download or read book Icing Cloud Calibration of the NASA Glenn Icing Research Tunnel written by Robert F. Ide and published by . This book was released on 2001 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The icing research tunnel at the NASA Glenn Research Center underwent a major rehabilitation in 1999, necessitating recalibration of the icing clouds. This report describes the methods used in the recalibration, including the procedure used to establish a uniform icing cloud and the use of a standard icing blade technique for measurement of liquid water content. The instruments and methods used to perform the droplet size calibration are also described. The liquid water content/droplet size operating envelopes of the icing tunnel are shown for a range of airspeeds and compared to the FAA icing certification criteria. The capabilities of the IRT to produce large droplet icing clouds is also detailed.
Book Synopsis NASA Glenn Icing Research Tunnel by : Laura E. King-Steen
Download or read book NASA Glenn Icing Research Tunnel written by Laura E. King-Steen and published by . This book was released on 2019 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computations of Droplet Distributions in the NASA Glenn Icing Research Tunnel by : Chirag Bhargava
Download or read book Computations of Droplet Distributions in the NASA Glenn Icing Research Tunnel written by Chirag Bhargava and published by . This book was released on 2003 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781724692429 Total Pages :326 pages Book Rating :4.6/5 (924 download)
Book Synopsis Three-Dimensional Water Droplet Trajectory Code Validation Using an Ecs Inlet Geometry by : National Aeronautics and Space Administration (NASA)
Download or read book Three-Dimensional Water Droplet Trajectory Code Validation Using an Ecs Inlet Geometry written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-04 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: A task was completed under NASA contract, the purpose of which was to validate a three-dimensional particle trajectory code with existing test data obtained from the Icing Research Tunnel at NASA-LeRC. The geometry analyzed was a flush-mounted environmental control system (ECS) inlet. Results of the study indicated good overall agreement between analytical predictions and wind tunnel test results at most flight conditions. Difficulties were encountered when predicting impingement characteristics of the droplets less than or equal to 13.5 microns in diameter. This difficulty was corrected to some degree by modifications to a module of the particle trajectory code; however, additional modifications will be required to accurately predict impingement characteristics of smaller droplets. Breer, Marlin D. and Goodman, Mark P. Unspecified Center NASA-CR-191097, E-7853, NAS 1.26:191097 NAS3-25820; RTOP 505-62-00...
Book Synopsis Flow Quality Studies of the NASA Glenn Research Center Icing Research Tunnel Circuit (1995 Tests) by :
Download or read book Flow Quality Studies of the NASA Glenn Research Center Icing Research Tunnel Circuit (1995 Tests) written by and published by . This book was released on 2000 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 37th AIAA Aerospace Sciences Meeting and Exhibit by :
Download or read book 37th AIAA Aerospace Sciences Meeting and Exhibit written by and published by . This book was released on 1999 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1982 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulations of Droplet Dispersion in the Wakes of Cylinders and Icing Tunnel Spray Bars by : Albert Y. Lee
Download or read book Simulations of Droplet Dispersion in the Wakes of Cylinders and Icing Tunnel Spray Bars written by Albert Y. Lee and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulations of droplet dispersion behind cylinder wakes and downstream of icing tunnel spray bars were conducted. In both cases, a range of droplet sizes were investigated numerically with a Lagrangian particle trajectory approach while the turbulent air flow was investigated with a hybrid Reynolds-Averaged Navier-Stokes/Large-Eddy Simulations approach scheme. In the first study, droplets were injected downstream of a cylinder at sub-critical conditions (i.e. with laminar boundary layer separation). A stochastic continuous random walk (CRW) turbulence model was used to capture the effects of sub-grid turbulence. Small inertia droplets (characterized by small Stokes numbers) were affected by both the large-scale and small-scale vortex structures and closely followed the air flow, while exhibiting a dispersion consistent with that of a scalar flow field. Droplets with intermediate Stokes numbers were centrifuged by the vortices to the outer edges of the wake, yielding an increased dispersion. Large Stokes number droplets were found to be less responsive to the vortex structures and exhibited the least dispersion. Particle concentration was also correlated with vorticity distribution which yielded preferential bias effects as a function of different particle sizes. This trend was qualitatively similar to results seen in homogenous isotropic turbulence, though the influence of particle inertia was less pronounced for the cylinder wake case. A similar study was completed for droplet dispersion within the Icing Research Tunnel (IRT) at the NASA Glenn Research Center, where it is important to obtain a nearly uniform liquid water content (LWC) distribution in the test section (to recreate atmospheric icing conditions).. For this goal, droplets are diffused by the mean and turbulent flow generated from the nozzle air jets, from the upstream spray bars, and from the vertical strut wakes. To understand the influence of these three components, a set of simulations was conducted with a sequential inclusion of these components. Firstly, a jet in an otherwise quiescent airflow was simulated to capture the impact of the air jet on flow turbulence and droplet distribution, and the predictions compared well with experimental results. The effects of the spray bar wake and vertical strut wake were then included with two more simulation conditions, for which it was found that the air jets were the primary driving force for droplet dispersion, i.e. that the spray bar and vertical strut wake effects were secondary.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A DROP-SIZE STUDY IN THE ICING WIND TUNNEL by : H.E. STUBBS,H.H. CANFIELD,ART NICHOLIS
Download or read book A DROP-SIZE STUDY IN THE ICING WIND TUNNEL written by H.E. STUBBS,H.H. CANFIELD,ART NICHOLIS and published by . This book was released on 1953 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analytical Ice Shape Predictions for Flight in Natural Icing Conditions by :
Download or read book Analytical Ice Shape Predictions for Flight in Natural Icing Conditions written by and published by . This book was released on 1988 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
