Missile Datcom 軟件的全稱為Missile Data Compendium，是由美國空軍飛行力學實驗室開發的一款氣動力工程計算軟件。彈道計算時需要獲得彈體在不同馬赫數、海拔、速度等條件下飛行時的氣動力系數。

一般可以使用 數值算法 和 工程算法 兩種方式

（1）數值算法：利用 Fluent、CFD++ 等軟件進行一系列復雜的前處理、求解器設置及后處理才可以進行計算，缺點顯而易見，既考驗使用者 Fluent、CFD++ 等軟件的使用能力，又對電腦cpu等硬件的性能設置了門檻，普通的臺式和筆記本難以堪當此任。

（2）工程算法：利用經驗數據、實驗數據及數學公式對彈體的氣動力系數進行求解，Missile Datcom 軟件就是應用了此種方式，優點：對使用者極其友好，通過看使用說明手冊即可快速上手進行求解計算，并且計算速度快、對電腦配置沒有要求，普通的筆記本、臺式就可以。

Missile Datcom輸入文件格式：

DERIV RAD

DIM M

$FLTCON

 NALPHA = 11.0,

 ALPHA = -5.0,-4.0,-3.0,-2.0,-1.0,0.0,1.0,2.0,3.0,4.0,5.0,6.0,

 NMACH = 10.0,

 MACH = 0.650,0.700,0.750,0.800,0.850,0.930,1.100,1.500,2.000,2.500,

 ALT = 0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,

$END

$REFQ

 SREF = 0.011310,

 LREF = 0.120000,

 XCG = 0.422900,

 RHR = 400.000000,

$END

$AXIBOD

 NX = 31.0,

 X = 0.00000000,0.00382000,0.00938000,0.01400000,0.01846000,

     0.02434000,0.03189000,0.04020000,0.04587000,0.05175000,

     0.05454000,0.06392000,0.07687000,0.08947000,0.10753000,

     0.15606000,0.18021000,0.20110000,0.22328000,0.25164000,

     0.28746000,0.31408000,0.34530000,0.37658000,0.40578000,

     0.43903000,0.46965000,0.50304000,0.53643000,0.60281000,

     0.70490000,

 R = 0.00359000,0.00636000,0.00918000,0.01121000,

     0.01323000,0.01524000,0.01599000,0.01682000,0.01870000,

     0.02063000,0.02156000,0.02156000,0.02763000,0.03276000,

     0.03899000,0.05079000,0.05493000,0.05781000,0.05936000,

     0.05969000,0.05781000,0.05493000,0.05025000,0.04459000,

     0.03898000,0.03276000,0.02574000,0.02155000,0.01737000,

     0.01737000,0.01737000,

$FINSET1

 SECTYP = HEX,

 NPANEL = 8.,

 PHIF = 0.00,45.00,90.00,135.00,180.00,225.00,270.00,315.00,

 XLE = 0.640,

 SWEEP = 13.4,13.4,60.0,60.0,

 SSPAN = 0.017,0.030,0.036,0.049,

         0.054,

 CHORD = 0.065,0.067,0.065,0.044,

         0.026,

 STA = 0.0,0.0,0.0,0.0,

       0.0,

 ZUPPER = 0.003000,0.003000,0.003000,0.003000,

          0.003000,

 LFLATU = 0.065000,0.067000,0.065000,0.044000,

          0.026000,

$END

*SAVE

DAMP

SPIN

PART

*SOSE

NEXT CASE

實際運行時需要根據需要修改 for005.dat 文件，軟件運行完成后，文件夾中出現許多文件，匯總的氣動力系數結果文件為 for042.csv 中，使用者可對照使用手冊將所需的氣動力系數挑選出來。此外，如果想要查看 for005.dat 中建立好的模型，可使用 Tecplot 打開 for022.dat 文件即可看到模型的三維效果圖。

本人針對Missile Datcom軟件進行了二次開發，可以對計算后的氣動力系數進行統計，形成固定格式文檔，以便進行彈道計算使用。

實際效果如下圖所示，使用中有問題可聯系本人QQ解決。