국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Aerodynamic Design and Computational Analysis of a Spacecraft Cabin Ventilation Fan
저자	Tweedt, Daniel L.
Keyword	AERODYNAMIC NOISE;; ASTRONAUTS;; COMPUTATIONAL FLUID DYNAMICS;; COOLING SYSTEMS;; COST EFFECTIVENESS;; DESIGN ANALYSIS;; INTERNATIONAL SPACE STATION;; LONG DURATION SPACE FLIGHT;; NOISE REDUCTION;; PAYLOADS;; VENTILATION FANS
URL	http://hdl.handle.net/2060/20110002741
보고서번호	NASA/CR-2010-216329
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Quieter working environments for astronauts are needed if future long-duration space exploration missions are to be safe and productive. Ventilation and payload cooling fans are known to be dominant sources of noise, with the International Space Station being a good case in point. To address this issue in a cost-effective way, early attention to fan design, selection, and installation has been recommended. Toward that end, NASA has begun to investigate the potential for small-fan noise reduction through improvements in fan aerodynamic design. Using tools and methodologies similar to those employed by the aircraft engine industry, most notably computational fluid dynamics (CFD) codes, the aerodynamic design of a new cabin ventilation fan has been developed, and its aerodynamic performance has been predicted and analyzed. The design, intended to serve as a baseline for future work, is discussed along with selected CFD results.