非标准第310天
实施MIL-HDBK-310气候数据
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航空空间 /环境 /氛围
描述
这非标准第310天块将MIL-HDBK-310的气候数据的一部分实现为80 km(几何或大约262,467英尺几何),以实现输入地理位置高度的绝对温度,压力,密度和声音速度。
这Coesa气氛模型,,,,非标准天210c,,,,and非标准第310天blocks are identical blocks. When configured forCoesa气氛模型,该块实现了Coesa数学表示。配置时非标准天210c,该块实现MIL-STD-210C气候数据。配置时非标准第310天,该块实现MIL-HDBK-310气候数据。
这Coesa气氛模型块端口标签根据从“从Unitslist.
Limitations
All values are held below the geometric altitude of 0 m (0 feet) and above the geometric altitude of 80,000 meters (approximately 262,467 feet). The envelope atmospheric model has a few exceptions where values are held below the geometric altitude of 1 kilometer (approximately 3,281 feet) and above the geometric altitude of 30,000 meters (approximately 98,425 feet). These exceptions arise from lack of data in MIL-HDBK-310 for these conditions.
In general, temperature values are interpolated linearly, and density values are interpolated logarithmically. Pressure and speed of sound are calculated using a perfect gas law. The envelope atmospheric model has a few exceptions where the extreme value is the only value provided as an output. Pressure in these cases is interpolated logarithmically. These envelope atmospheric model exceptions apply to all cases of high and low pressure, high and low temperature, and high and low density, excluding the extreme values and 1% frequency of occurrence. These exceptions arise from lack of data in MIL-HDBK-310 for these conditions.
另一个限制是,在MIL-HDBK-310中,将60°S纬度以南地区的气候数据排除在外。
该块使用MIL-STD-310规格中的数据的度量版本。信封内的某些数据对于低密度,低温,高温,低压和高压之间的度量和英语版本之间不一致。最重要的差异发生在以下值中:
For low density envelope data with 5% frequency, the density values in metric units are inconsistent at 4 km and 18 km and the density values in English units are inconsistent at 14 km.
For low density envelope data with 10% frequency,
公制单位中的密度值在18公里处不一致。
英语单位的密度值在14公里处不一致。
For low density envelope data with 20% frequency, the density values in English units are inconsistent at 14 km.
For low temperature envelope data with 20% frequency, the temperature values at 20 km are inconsistent.
For high pressure envelope data with 10% frequency, the pressure values in metric units at 8 km are inconsistent.
Ports
Input
输出
参数
References
[1]用于开发军事产品的全球气候数据。下载188bet金宝搏MIL-HDBK-310, Washington, D.C.: Department of Defense, 1987.