In order to a the flow of the plane flow field induced by the inner rod rotates and revolves in the cylinder. the Fluent software is used to numerically simulate the plane flow field of the eccentric annulus generated by the planetary motion of the rod string and based on the superposition principle. The velocity distribution and secondary flow of the two flow fields. as well as the f... https://mabelandfoxs.shop/product-category/moses-basket-stand/