You need JavaScript to view this

Study on accretion of ice on oscillating aerofoils; Shindoyokujo no chakuhyo ni kansuru kenkyu

Abstract

The effects of pitching and heaving motions of an aerofoil on accretion of ice thereon are investigated for the design of wind turbine blades. The conditions under which an aerofoil shows a heaving motion are 10m/s as wind velocity, -12degC as ambient temperature, 0.5Hz as frequency and 5mm as amplitude. Initial growth of ice is stochastic to a great extent; ice grows rapidly around the seed which is formed by chance somewhere on an laerofoil. The effects of ice appear in the flow field in the vicinity of the aerofoil front edge, as it continues to grow, providing different conditions for water droplets to collide with each other. Average ice shapes can be classified by environment, although at low repeatability. Range of ice accretion varies depending on aerofoil motion, whether it is pitching, heaving or at rest. The most important factor that determines behavior of ice accretion is conditions of the flow field near the aerofoil front edge. In a pitching or heaving motion, its speed is an important factor for growth of ice. 2 refs., 5 figs.
Authors:
Nishikawa, S; Sugihara, H; [1]  Kimura, S; Sugiyama, Y; [2]  Tsuboi, K [3] 
  1. Kandenko Co. Ltd., Tokyo (Japan)
  2. Kanagawa Institute of Technology, Kanagawa (Japan)
  3. Ibaraki University, Ibaraki (Japan). Faculty of Engineering
Publication Date:
Nov 25, 1997
Product Type:
Conference
Report Number:
ETDE/JP-98753622; CONF-9711143-
Reference Number:
SCA: 170602; 170100; PA: JP-98:0G1070; EDB-98:072670; SN: 98001948771
Resource Relation:
Conference: 1997 JSES/JWEA joint conference, Taiyo/furyoku energy koen, Aichi (Japan), 28-29 Nov 1997; Other Information: PBD: 25 Nov 1997; Related Information: Is Part Of Proceedings of JSES/JWEA Joint Conference (1997); PB: 454 p.; Taiyo/Furyoku energy koen ronbunshu (1997)
Subject:
17 WIND ENERGY; TURBINE BLADES; WIND TURBINES; MECHANICAL VIBRATIONS; ICE; MOUNTAINS; ADHESION; NUCLEATION; SHAPE; MOTION; VELOCITY; PROBABILITY; FLUID FLOW
OSTI ID:
625347
Research Organizations:
Japan Solar Energy Society, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98753622; TRN: JN98G1070
Availability:
Available from Japan Solar Energy Society, 44-14, Yoyogi 2-chome, Shibuya-ku, Tokyo, (Japan); OSTI as DE98753622
Submitting Site:
NEDO
Size:
pp. 217-220
Announcement Date:

Citation Formats

Nishikawa, S, Sugihara, H, Kimura, S, Sugiyama, Y, and Tsuboi, K. Study on accretion of ice on oscillating aerofoils; Shindoyokujo no chakuhyo ni kansuru kenkyu. Japan: N. p., 1997. Web.
Nishikawa, S, Sugihara, H, Kimura, S, Sugiyama, Y, & Tsuboi, K. Study on accretion of ice on oscillating aerofoils; Shindoyokujo no chakuhyo ni kansuru kenkyu. Japan.
Nishikawa, S, Sugihara, H, Kimura, S, Sugiyama, Y, and Tsuboi, K. 1997. "Study on accretion of ice on oscillating aerofoils; Shindoyokujo no chakuhyo ni kansuru kenkyu." Japan.
@misc{etde_625347,
title = {Study on accretion of ice on oscillating aerofoils; Shindoyokujo no chakuhyo ni kansuru kenkyu}
author = {Nishikawa, S, Sugihara, H, Kimura, S, Sugiyama, Y, and Tsuboi, K}
abstractNote = {The effects of pitching and heaving motions of an aerofoil on accretion of ice thereon are investigated for the design of wind turbine blades. The conditions under which an aerofoil shows a heaving motion are 10m/s as wind velocity, -12degC as ambient temperature, 0.5Hz as frequency and 5mm as amplitude. Initial growth of ice is stochastic to a great extent; ice grows rapidly around the seed which is formed by chance somewhere on an laerofoil. The effects of ice appear in the flow field in the vicinity of the aerofoil front edge, as it continues to grow, providing different conditions for water droplets to collide with each other. Average ice shapes can be classified by environment, although at low repeatability. Range of ice accretion varies depending on aerofoil motion, whether it is pitching, heaving or at rest. The most important factor that determines behavior of ice accretion is conditions of the flow field near the aerofoil front edge. In a pitching or heaving motion, its speed is an important factor for growth of ice. 2 refs., 5 figs.}
place = {Japan}
year = {1997}
month = {Nov}
}