A numerical simulation study on natural ventilation of two connected chambers in connection with anambient environment is presented in the paper. Extending a model of single-room displacementventilation, this study addresses a space consisting of two chambers connected by one opening at thelow level of the shared wall. A thermal load is placed only in one chamber, referred as a forced chamber,and the other chamber, unforced chamber, has no heat load. The space is connected to the outsideambient environment to have displacement ventilation in both chambers.
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