Thermodynamics

Thermodynamics

The science of energy and its ability to cause changes.

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Thermodynamics

diesel cycle

Physics; Thermodynamics

The ideal cycle for compress-ignition reciprocating engines which was first proposed by Rudolf Diesel in the 1890s. Using the air-standard assumptions, the cycle consists of four internally ...

An added section between the turbine and the nozzle of an aircraft turbine engine that allows additional fuel to be injected into the oxygen-rich combustion gases leaving the turbine. As a result of ...

irreversibility

Physics; Thermodynamics

The difference between the reversible work Wrev and the useful work Wu due to irreversibility. Irreversibility can be viewed as the wasted work potential or the lost opportunity to do work.

thrust

Physics; Thermodynamics

The unbalanced force developed in a turbojet engine that is caused by the difference in the momentum of the low-velocity air entering the engine and the high-velocity exhaust gases leaving the ...

jet-propulsion cycle

Physics; Thermodynamics

The cycle used in aircraft gas turbines. The ideal jet-propulsion cycle differs from the simple ideal Brayton cycle in that the gases are not expanded to the ambient pressure in the turbine. Instead, ...

ideal cycle

Physics; Thermodynamics

An actual cycle stripped of all the internal irreversibility and complexity. The ideal cycle resembles the actual cycle closely but is made up totally of internally reversible processes.

Otto cycle

Physics; Thermodynamics

Named after Nikolaus A. Otto , it is the ideal cycle for spark-ignition reciprocating engines. The ideal Otto cycle, which closely resembles the actual operating conditions, utilizes the air-standard ...