Method for testing heat transfer characteristic of woven ceramic fiber composite material based on LBM

The invention discloses a heat transfer characteristic testing method of a woven ceramic fiber composite material based on LBM, and belongs to the field of material performance testing. At present, the research on the heat-conducting property of a ceramic fiber material is insufficient, and a theoretical calculation basis is also lacked in the aspect of experiments. According to the method, physical modeling is carried out on different weaving structures of ceramic fibers based on a lattice Boltzmann method, and specific heat capacity and phonon average free path parameters are obtained through fitting; selecting a grid division method, a grid model and boundary conditions used during calculation, and determining a phonon heat transport grid Boltzmann equation; the thermal conductivity of the material at different temperatures, different weaving angles and different fiber radiuses is calculated according to the types of different weaving structures through simulation software, and the relative deviation is wo