In the preceding report, we investigated by means of one-half scaled model experiments a ceiling-cooling-type cooling system that uses ceiling-adhering air jets, and reported on the blown air-currents' adhesion to the ceiling and on the indoor thermal environment of a cooled living room in which this cooling method is used. In this report, we conduct numerical simulation coupling radiant and convective fields for a living room corresponding to the model experiments, and structurally analyze the indoor thermal environment realized by this cooling method. Additionally, we analyze through numerical simulation the indoor environment by altering the air supply and exhaust methods, and investigate inlets and outlets' influence on indoor thermal environment formation. We thus learned that with this cooling system, the position of exhaust inlets has a major influence on indoor thermal environment formation and that exhaust inlets positioned so as to directly exhaust ascending thermal currents from heat sources with a large thermal load are effective. The fact that the temperature of the sucked-in air is higher than that of the room's dwelling space means that if the air-conditioning thermal load is the same, the temperature of the blown air can be increased by the amount of this temperature difference and the condensation risk due to the blown air is correspondingly reduced. The method of cooling the ceiling surface with blown air currents effectively absorbs the window-surface load by means of radiation and transfers this heat within the room by convective heat transfer. But from the stand-point that this cooling system effectively exhausts the heat before the window-surface load diffuses within the room, this method also has the counter effect of promoting thermal diffusion to spaces within the room by radiant heat transfer.