Low-Reynolds-Number Performance of Micro Radial-Flow Turbines at High Altitudes

Key Points

• Low performance is noted in micro radial-flow turbines under low-pressure conditions, impacting efficiency.
• In high-altitude environments, the Reynolds number often falls below a critical threshold of self-similarity.
• Assessment focuses on how low-density conditions affect turbine operation and performance outcomes.
• Findings highlight key design challenges for micro radial-flow turbines operating in high-altitude settings.