Abstract
In the previous paper, Part 1, the full scale experiment of airflow distribution in a room was carried out under isothermal condition. With the airflow data obtained by the measurement, the BOX method and the P. V. method (the prescribed velocity method) were applied to the CFD simulation. The simulated results showed good agreement with the experimental ones not only around the diffuser but also the other part of the room. This paper presents the full scale experiment and the application of the coarse grid CFD simulation using the P. V. method under non-isothermal condition. In the full scale experiments, the detail of the airflow and temperature distributions around a complex air diffuser installed at the ceiling were obtained. The coarse grid CFD simulation with the P. V. method based on the airflow distribution around the diffuser obtained by the measurement was carried out. The results of this simulation reproduced the complex airflow distributions that were observed in the measurements, such as the attached air jet horizontally along the ceiling, the vertical downward free jet and the induced flow near the diffuser. The simulated temperature distributions of the room air and the wall surfaces also agreed with thc measured ones.
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