Below are links to a small subset of research which has been done on the UW Hyak Supercomputer.
https://itconnect.uw.edu/research/hpc/researchers-stories/baker/
http://students.washington.edu/hpcc/hpcc-member-spotlight/
https://itconnect.uw.edu/research/hpc/researchers-stories/pfaendtner/
Genomics:
https://itconnect.uw.edu/research/hpc/researchers-stories/beck/
Mathematics:
https://www.uwb.edu/news/press/2015/081415
Physics:
https://itconnect.uw.edu/research/hpc/researchers-stories/savage/
Climate Science:
https://www.washington.edu/uwit/2017-partnerships/hyak/
Below link has a list of papers which used Hyak: