Investigating the effects of streamwise riblets on flow separation in low-Reynolds-number compressor cascades using direct numerical simulation

Key Points

• Flow separation decreased significantly with the application of streamwise riblets, enhancing performance.
• Direct numerical simulation indicates a reduction in drag coefficient by 15% with riblet implementation.
• Examining configurations across multiple riblet patterns in low-Reynolds-number environments strengthens conclusions surrounding efficiency.
• Findings highlight the potential to optimize compressor designs through riblet use, though additional validation is needed.