Collision detection method and device, equipment and storage medium

The invention discloses a collision detection method, device and equipment and a storage medium, and relates to the field of fluid mechanics, and the method comprises the steps: building a plurality of axisymmetric bounding boxes for a target object based on the point-surface information of the target object in a grid, so as to enable an object bounding box formed based on the plurality of axisymmetric bounding boxes to completely wrap the target object; if a target grid point located in an axial symmetry bounding box corresponding to the second target object exists in all grid points contained in the first target object, determining the number of intersection points of a ray starting from the target grid point in any direction and the second target object; and if the number of the intersection points is an odd number, determining that the first target object collides with the second target object. According to the method, global detection is performed through the axisymmetric bounding box, and local detectio