A disk drive includes a disk drive base, a disk, and a head stack assembly
rotatably coupled to the base adjacent the disk surface of the disk. The
disk drive includes an airflow channeling enclosure. The enclosure
includes an airflow inlet disposed downstream of the head stack assembly
and configured to receive the disk rotation induced airflow therethrough.
The enclosure further includes an airflow channel extending along the
disk surface from the airflow inlet. The enclosure further includes an
outer wall extending along the disk surface from the airflow inlet and
defining the airflow channel radially interior to the outer wall. The
enclosure further includes an airflow outlet disposed upstream of the
head stack assembly extending from the outer wall and the channel
opposite the airflow inlet for modifying the disk rotation induced
airflow passing from the channel.