変動風水洞の建設及び基本特性
スポンサーリンク
概要
- 論文の詳細を見る
The Ship Research Institute (SRI) has been making researches and development to confirm the safety of ships and offshore structures and to preserve the marine environment. A new experimental facility "Pulsating Wind Tunnel with Water Tank" to support a part of those researches and development has been completed at the SRI in September 1993. This facility is composed of a horizontal single-return type wind tunnel (so-called Gottingen type) and a water tank. The water tank has been installed under the test section of the wind tunnel, and is equipped with a wave maker, two wave absorbers and a current generator. The wind tunnel with water tank can generate wind, waves and current simultaneously or independently. It can be used as boundary layer type, open test section type and Eiffel type wind tunnel by the installation of movable floor boards between the test section of the wind tunnel and the water tank. The wind tunnel can generate sinusoidally pulsating wind with large amplitude in low frequency range by the electronically controlled fan. It has been found that the generated wind velocity gives a clear sine curve of pulsating wind. Therefore, the illustration of the generation of pulsating wind by the electronically controlled fan may be informative for the generation of the pulsating wind in a large scale wind tunnel. Basic performance tests have been carried out in the test section of the facility. Some results and specifications of the facility are as follows. The test section of the wind tunnel is 3.0m wide, 2.0m high and 15.0m long. The maximum mean wind velocity is 34m/s. The sinusoidally pulsating wind can be generated with the wind velocity up to 13m/s±50% and the period of 25 〜50 seconds. The water tank is 17.6m long, 3m wide and 1.8m high (reference water depth 1.5m). The wave maker can generate regular waves with wave height up to 0.3m and period of 0.6〜4.0 seconds or irregular waves. The current generator can generate up to the flow velocity of 0.3m/s.
- 独立行政法人 海上技術安全研究所の論文
- 1995-07-30
著者
関連論文
- 変動風水洞の建設及び基本特性
- 船舶技術研究所の新しい実験施設「変動風水洞」について
- (8) 側壁型ACVの水上推進特性(第三報)(昭和48年学協会刊行物掲載論文再録集)
- 浮遊式海洋構造物の実海域実験 : その9 長周期運動のシミュレーションと統計予測