Prediction of Axial and Centrifugal Fan Characteristics for Large Surface Effect Vehicles

• Main Author: Purnell, John G
• Other Authors: DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD
• Format: Text
• Language: English
• Published: 1973
• Subjects: Surface Effect Vehicles & Amphibious Vehicles; *ARCTIC REGIONS; *AXIAL FLOW FANS; *COMPUTER PROGRAMS; *FANS; *GROUND EFFECT MACHINES; AERODYNAMIC CHARACTERISTICS; AERODYNAMIC CONFIGURATIONS; CENTRIFUGAL COMPRESSORS; DRAG; GAS FLOW; IMPELLERS; LIFT; MATHEMATICAL MODELS; MATHEMATICAL PREDICTION; PERFORMANCE(ENGINEERING); PRESSURE; *CENTRIFUGAL FANS; SEV(SURFACE EFFECT VEHICLES); SURFACE EFFECT VEHICLES; Arctic
• Online Access: http://www.dtic.mil/docs/citations/AD0912307; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0912307

Two digital computer programs have been formulated for predicting performance characteristics of centrifugal and axial fans which may be used to provide lift air for large surface effect vehicles. Pressure rise and flow characteristics of forwardly curved, radial, and backwardly curved centrifugal fans can be evaluated. Axial fans having either inlet flow prerotators or exit flow straighteners can also be handled in the program. Sample results are presented to illustrate the method of calculation and the nature of the results. Report on Arctic Surface Effect Vehicle Program.