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Physics of a Jet Turbine Engine.

Philosophy Of Physics

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24,241 次观看 • 1 个月前 •via X (Twitter)

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This is not a model engine pretending to be a jet engine. It is actually a complete gas turbine shrunk onto a test bench. Inside this small machine are a compressor, combustion chamber, turbine wheel, fuel system and digital engine controller, the same basic physics used in aircraft engines. At full power, this turbine reaches nearly 98,000 RPM over 1,600 revolutions every second while producing 280 N of thrust, equivalent to roughly 28 kg of pushing force. At nearly 98,000 RPM, even a tiny imbalance can destroy the turbine. The combustion chamber must survive exhaust temperatures approaching 700°C, while the fuel system continuously manages a core flame powerful enough to create 280 N of thrust without losing combustion stability. A high-end RC turbine can cost $7,000-20,000+, despite fitting on a workbench. It is nowhere near the complexity of a modern military turbofan with thousands of components, afterburners and advanced cooling systems. But that is what makes it fascinating, engineers have compressed the core mechanisms of a jet engine compression, combustion and expansion, into a machine small enough to hold. 📹 RC hobby

This is not a model engine pretending to be a jet engine. It is actually a complete gas turbine shrunk onto a test bench. Inside this small machine are a compressor, combustion chamber, turbine wheel, fuel system and digital engine controller, the same basic physics used in aircraft engines. At full power, this turbine reaches nearly 98,000 RPM over 1,600 revolutions every second while producing 280 N of thrust, equivalent to roughly 28 kg of pushing force. At nearly 98,000 RPM, even a tiny imbalance can destroy the turbine. The combustion chamber must survive exhaust temperatures approaching 700°C, while the fuel system continuously manages a core flame powerful enough to create 280 N of thrust without losing combustion stability. A high-end RC turbine can cost $7,000-20,000+, despite fitting on a workbench. It is nowhere near the complexity of a modern military turbofan with thousands of components, afterburners and advanced cooling systems. But that is what makes it fascinating, engineers have compressed the core mechanisms of a jet engine compression, combustion and expansion, into a machine small enough to hold. 📹 RC hobby

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