In this paper, the influence of combination of the introduction method of wind-forced ventilation and the supply method of conditioned air on the indoor thermal environment and airflow characteristics are examined by means of CFD calculation. In CFD, two types of supply location of the air conditioned by AHU were set : (1) supply from ceiling, (2) supply from floor, and four locations of outdoor air intake for wind-forced ventilation were set ; (1) ceiling, (2) high position of outer wall close to ceiling, (3) low position of outer wall close to floor and (4) floor. From the calculated data, indoor environment and energy efficiency were evaluated by the distribution of air temperature, contribution ratio of indoor climate No.3 (CRI3) and CO2 concentration emitted from occupants.
