v1.0 - CiCP2021 paper version

This is the code version used in the 2021 CiCP paper

Engels, T., Schneider, K., Reiss, J., Farge, M.: A wavelet-adaptive method for multiscale simulation of turbulent flows in flying insects, Commun. Comput. Phys submitted, arXiv:1912.05371, 2021

The biorthogonal wavelet transform is not working properly under all circumstances, we therefore recommend to use the code with CDF40 wavelets. In the case of artificial compressibility, we recommend to use FD_4th_central_optimized (with g=4 ghost nodes) or FD_4th_central (with g=2 ghost nodes).