著者
柴田 眞
出版者
Japan Association for Wind Engineering
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.2000, no.83, pp.41-48, 2000-04-30 (Released:2010-09-28)
参考文献数
4

Stratospheric airship, that is ultra long duration high altitude airship, is somewhat different from conventional design airship. Mission altitude is about 20km, because winds are relatively weak around that altitude through the year. Solar cell and regenerative fuel cell equipped airships are able to be geostationary against air stream for long duration without fossil fuel exhaust to atmosphere, that is environment-friendly. Design point of view, no mass change is essential during mission flight, soit is necessary for altitude control to close airship hull against superheat phenomenon. Development of super pressurized hull structure with new high tensile strength material is critical technology for this flight vehicle. Airship design, tracking and control are very sensitive to wind condition, so the cooperation of meteorologists and aerospace engineers is very important for this challenging project.

1 0 0 0 OA 地上風の測器

著者
小野木 茂
出版者
一般社団法人 日本風工学会
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.34, no.3, pp.314-321, 2009-07-31 (Released:2011-03-31)
参考文献数
22
被引用文献数
2 1
著者
斉藤 和雄
出版者
Japan Association for Wind Engineering
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.1998, no.75, pp.79-84, 1998-04-30 (Released:2010-09-28)
参考文献数
9

The orographically-enhanced local severe wind is reviewed, focusing on the mechanism of the downslope wind. Theory of shallow water flow aver a ridge and internal gravity wavein a stratified atmosphere are presented to comprehend the local severe wind. Deformation by three-dimensional effect is also discussed . Numerical simulation of the “ Yamajikaze”, a downslope wind in Shikoku, is shown to suggest the predictability of the downslope wind.
著者
宮本 佳明
出版者
一般社団法人 日本風工学会
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.42, no.1, pp.15-22, 2017-01-31 (Released:2017-05-29)
参考文献数
43
著者
溝田 武人 久羽 浩幸 大原 慎一郎 岡島 厚
出版者
一般社団法人 日本風工学会
雑誌
JWE : 日本風工学研究会誌 (ISSN:09121935)
巻号頁・発行日
vol.70, pp.27-38, 1997-01-31
参考文献数
9
被引用文献数
11 4

Aerodynamic behavior of forkball and fastball are studied in a stand point of fluid dynamic research. The fastball rotates in backspin and aerodynamic lift force acts on it is toward upward by Magnus effects. This lift force is the same magnitude with gravity force for good fastball. As a result, the fastball trajectory is nearly straight toward homebase after detaching pitcher's finger. The other hand, good forkball spins around vertical axis. In this case, less lift force and only the gravity force act on the ball. The flight trajectory of the forkball results in vertically sinking line only by the gravity force and laterally sliding one by side spinning effects in its final stage near the homebase.
著者
石原 正仁
出版者
一般社団法人 日本風工学会
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.34, no.3, pp.322-328, 2009-07-31 (Released:2011-03-31)
参考文献数
12
著者
楠原 栄樹
出版者
一般社団法人 日本風工学会
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.40, no.1, pp.4-9, 2015-01-31 (Released:2015-05-22)
参考文献数
6
被引用文献数
1 1

1 0 0 0 OA ビル風と規制

著者
中村 修
出版者
一般社団法人 日本風工学会
雑誌
日本風工学会誌 (ISSN:09121935)
巻号頁・発行日
vol.40, no.1, pp.17-22, 2015-01-31 (Released:2015-05-22)
参考文献数
12