Summary
CFD simulations of a ventilation solar chimney test how much open space must be modelled over the channel exit, contrasting a cavity-only model with one that also includes surrounding atmosphere, for varied channel widths and heights. Holding induced airflow and heating within 1% needs an exit region that scales with width relative to height, rising from roughly 10 to 30 channel widths.
Description written by Solar Tower. The original abstract is available from the publisher via the link below.