COSAL: A black-box compressible stability analysis code for transition prediction in three-dimensional boundary layers
COSAL: A black-box compressible stability analysis code for transition prediction in three-dimensional boundary layers
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发表时间：
1982-05
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通讯作者：
MuJeeb R. Maiik
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作者：
MuJeeb R. Maiik
本文介绍了一个用于三维边界层可压缩稳定性分析转折预报的快速计算机程序COSAL。可压缩稳定性特征值问题用有限差分方法求解，代码是一个黑匣子，不需要用户猜测特征值。在COSAL中加入了几个优化程序，使用众所周知的e到N次方方法，计算了后掠层流控流翼和锥形层流控制翼的过渡相关的积分增长率(N因子)。提供了该节目的用户指南。
A fast computer code COSAL for transition prediction in three dimensional boundary layers using compressible stability analysis is described. The compressible stability eigenvalue problem is solved using a finite difference method, and the code is a black box in the sense that no guess of the eigenvalue is required from the user. Several optimization procedures were incorporated into COSAL to calculate integrated growth rates (N factor) for transition correlation for swept and tapered laminar flow control wings using the well known e to the Nth power method. A user's guide to the program is provided.