Aerospace Instrument-Making Annotation << Back About the flowing of liquid or gaze around the rigid body bounded by known algebraic surface K.V. Manuylov, L.P. Iljina The rolling of heavy rigid body bounded by known algebraic surface S on the fixed plane P is the motion, which is mirror equivalent to motion of liquid particles on the surface S. Thus we obtain the Euler equations describing the motion of the real liquid around this body (on surface S) from Euler equations describing the rolling of heavy rigid body constructing the substantive derivatives of components of the velocity of liquid given in form = xj?k – xk?j, where xi are the coordinates of the point moving on the surface S; ?i are angular velocities of rolling of heavy rigid body on the plane P by surface S.