In order to analyze plasma transport characteristics in GAMMA 10 for divertor-simulator operation, a simple numerical program based on the fluid plasma model has been developed. A series of initial test calculations has been successfully done for the model geometry of the end region of GAMMA 10. Typical low recycling state has been obtained for the GAMMA 10 model geometry with the magnetic flux expansion, while high recycling state for the pure cylindrical geometry without the flux expansion under the same boundary conditions.