摘要
在p坐标系中建立了100 km高度范围内自由大气风场的计算模型,根据Nimbus-7卫星探测器(SAMS)温度数据,利用热成风公式对100 km以下的风场进行了计算分析,与某火箭探空实测数据的对比曲线显示:计算风场与火箭实测风的分布规律基本一致,说明根据卫星探测温度数据,在p坐标系中利用热成风公式计算高空风场的方法是可行的。以某远程火箭为对象进行的对比计算结果表明,受高空风的影响,远程弹箭的射程差与侧偏都很大。
The model of calculating wind field of free atmosphere under the height of 100 km was es- tablished according to the relationship between pressure and height in p reference frame. Meanwhile, the wind field under the height of 100 km was obtained by the geostrophic wind and thermal wind for- mulas according to the temperature data from Nimbus-7. The data comparison between the calculation and the experimental detection with long-range racket shows that the distribution law of the calculated wind field is coincident with that of the detected wind field; and the model of calculating wind field at high altitude is feasible. In order to show the effect of wind field at high altitude, a ballistic contrastive calculation of the long-range rocket was carried out. The results show that the errors of range and side deflection are obviously affected by the wind at high altitude
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2007年第10期1169-1172,共4页
Acta Armamentarii
关键词
流体力学
应用气象学
外弹道学
高空风场
远程弹箭
地转风
热成风
fluid mechanics
applied meleorology
exterior ballistics
wind field at high altitude~ long-range shell and roeket
geostrophie wind
thermal wind
