Comparison among the calculating methods of 3-D grain burning surface and the main points of solid modeling method

The available calculating models of 3-D grain burning surface were reviewed, and on this basis, a new kind of technique - 3-D solid modeling method was put forward in this paper. As an example of its application, a calculation of a star and a finocyl grain was performed, and the results showed that this method has the advantages of accuracy, universality, ease for use, and completeness in output information.