Elastomeric aircraft flight simulation method, system and computer storage medium
A technology of flight simulation and aircraft, applied in computer-aided design, calculation, design optimization/simulation, etc., can solve problems such as difficult to apply to engineering applications, large amount of calculation, low calculation efficiency, etc., to improve aircraft performance, ensure calculation accuracy, The effect of improving computational efficiency
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[0056] As an embodiment of the present invention, the simulation method also includes, judging whether the current number of steps k is N f Integer multiples of , if it is, then output the current grid, flow field and continuous calculation data, so as to output the intermediate flow field data. Among them, N f The number of interval steps saved for the set flow field output can be set according to the requirements. If the frequency of the intermediate flow field data that needs to be output is relatively high, you can set N f The value of is too small, if the frequency of the intermediate flow field data to be output is relatively low, you can set N f The value of is too large, if you do not need to output intermediate flow field data, you can directly set N f Just equal to N.
[0057] Among them, before performing CFD / CSD / RBD coupling calculation or UAM / CSD coupling calculation, or after performing CFD / CSD / RBD coupling calculation or UAM / CSD coupling calculation, it is ju...
Embodiment approach
[0059] As an implementation method of the present invention, such as figure 1 As shown, the specific simulation method steps include,
[0060] S1, read the main program setting parameters, grid, structural model table parameters, flight mechanics parameters and aerodynamic model; among them, in the main program setting parameters, set the initial time step ts′, reference time step ts, CFD / CSD / RBD coupling calculation interval n, total simulation steps N, initial solution steps m and flow field output saved interval steps N f value;
[0061] S2, judge whether the current step number k is less than or equal to N, if yes, enter S3; if not, output the grid, flow field and continuous calculation data, and the simulation ends;
[0062] S3, judging whether the current step number k is less than or equal to m or k is an integer multiple of n, if yes, then enter S4, if not, then enter S6;
[0063] S4, according to the grid node coordinates obtained in step k-1, perform dynamic defo...
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