Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 174
Book Description
WINCLR: A Computer Code for Heat Transfer and Clearance Calculation in a Compressor
Author: Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 652
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Winclr
Author: National Aeronautics and Space Adm NasaPublisher:
ISBN: 9781790131716
Category :
Languages : en
Pages : 174
Book Description
One of the concerns during inclement weather operation of aircraft in rain and hail storm conditions is the nature and extent of changes in compressor casing clearance. An increase in clearance affects efficiency while a decrease may cause blade rubbing with the casing. The change in clearance is the result of geometrical dimensional changes in the blades, the casing and the rotor due to heat transfer between those parts and the two-phase working fluid. The heat transfer interacts nonlinearly with the performance of the compressor, and, therefore, the determination of clearance changes necessitates a simultaneous determination of change in performance of the compressor. A computer code the WINCLR has been designed for the determination of casing clearance, that is operated interactively with the PURDU-WINCOF I code designed previously for determining the performance of a compressor. A detailed description of the WINCLR code is provided in a companion report. The current report provides details of the code with an illustrative example of application to the case of a multistage compressor. It is found in the example case that under given ingestion and operational conditions, it is possible for a compressor to undergo changes in performance in the front stages and rubbing in the back stages. Bose, T. K. and Murthy, S. N. B. AIRCRAFT SAFETY; APPLICATIONS PROGRAMS (COMPUTERS); CLEARANCES; HEAT TRANSFER; INGESTION (ENGINES); TURBOCOMPRESSORS; USER MANUALS (COMPUTER PROGRAMS); WEATHER; CASES (CONTAINERS); HAIL; PERFORMANCE PREDICTION; PROPULSION SYSTEM PERFORMANCE; RAIN; ROTORS; TURBOMACHINE BLADES; WORKING FLUIDS...
Dynamic Performance of High Bypass Ratio Turbine Engines With Water Ingestion
Author: S. N. B. MurthyWinclr
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781723487835
Category :
Languages : en
Pages : 172
Book Description
One of the concerns during inclement weather operation of aircraft in rain and hail storm conditions is the nature and extent of changes in compressor casing clearance. An increase in clearance affects efficiency while a decrease may cause blade rubbing with the casing. The change in clearance is the result of geometrical dimensional changes in the blades, the casing and the rotor due to heat transfer between those parts and the two-phase working fluid. The heat transfer interacts nonlinearly with the performance of the compressor, and, therefore, the determination of clearance changes necessitates a simultaneous determination of change in performance of the compressor. A computer code the WINCLR has been designed for the determination of casing clearance, that is operated interactively with the PURDU-WINCOF I code designed previously for determining the performance of a compressor. A detailed description of the WINCLR code is provided in a companion report. The current report provides details of the code with an illustrative example of application to the case of a multistage compressor. It is found in the example case that under given ingestion and operational conditions, it is possible for a compressor to undergo changes in performance in the front stages and rubbing in the back stages. Bose, T. K. and Murthy, S. N. B. Unspecified Center AIRCRAFT SAFETY; APPLICATIONS PROGRAMS (COMPUTERS); CLEARANCES; HEAT TRANSFER; INGESTION (ENGINES); TURBOCOMPRESSORS; USER MANUALS (COMPUTER PROGRAMS); WEATHER; CASES (CONTAINERS); HAIL; PERFORMANCE PREDICTION; PROPULSION SYSTEM PERFORMANCE; RAIN; ROTORS; TURBOMACHINE BLADES; WORKING FLUIDS...
32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Author: 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
Author: Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 325)
Author: Government Reports Announcements & Index
Author: Exoplanetary Atmospheres
Author: Kevin HengPublisher: Princeton University Press
ISBN: 0691166986
Category : Science
Languages : en
Pages : 290
Book Description
An essential introduction to the theory of exoplanetary atmospheres The study of exoplanetary atmospheres—that is, of planets orbiting stars beyond our solar system—may be our best hope for discovering life elsewhere in the universe. This dynamic, interdisciplinary field requires practitioners to apply knowledge from atmospheric and climate science, astronomy and astrophysics, chemistry, geology and geophysics, planetary science, and even biology. Exoplanetary Atmospheres provides an essential introduction to the theoretical foundations of this cutting-edge new science. Exoplanetary Atmospheres covers the physics of radiation, fluid dynamics, atmospheric chemistry, and atmospheric escape. It draws on simple analytical models to aid learning, and features a wealth of problem sets, some of which are open-ended. This authoritative and accessible graduate textbook uses a coherent and self-consistent set of notation and definitions throughout, and also includes appendixes containing useful formulae in thermodynamics and vector calculus as well as selected Python scripts. Exoplanetary Atmospheres prepares PhD students for research careers in the field, and is ideal for self-study as well as for use in a course setting. The first graduate textbook on the theory of exoplanetary atmospheres Unifies knowledge from atmospheric and climate science, astronomy and astrophysics, chemistry, planetary science, and more Covers radiative transfer, fluid dynamics, atmospheric chemistry, and atmospheric escape Provides simple analytical models and a wealth of problem sets Includes appendixes on thermodynamics, vector calculus, tabulated Gibbs free energies, and Python scripts Solutions manual (available only to professors)