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Compressor Simulation
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Statistics
1 Geometry
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1 Simulation setup
34 Results
1 Geometry 0 Meshes 1 Simulation setup 34 ResultsAbout this project
Compressor Working Principle: A compressor increases the pressure of a gas by transferring mechanical energy to the fluid. Energy Transfer: A rotating component (like an impeller or rotor blades) accelerates the gas, converting mechanical work into kinetic energy (high velocity). Pressure Rise: The high-velocity gas then enters a stationary diffuser. This passage slows the flow down (deceleration), converting the kinetic energy into a significant increase in static pressure and temperature, following Bernoulli's principle. Discharge: The resulting high-pressure, high-temperature gas is then discharged. Simulation & Boundary Conditions Compressor simulations use compressible solvers (like the Multipurpose solver) due to the high-speed flow and critical density changes. Inlet: Defined by Total Pressure and Total Temperature (or flow rate). Outlet: Defined by a pressure outlet or flow rate (if the inlet is pressure-conditioned). Rotating Speed: The RPM or rad/s of the impeller must be defined. CAD Model: The fluid domain is modeled as a single volume, with a separate overlapping volume defining the rotating region of the impeller. Key Performance Outputs CFD simulations generate data crucial for building the compressor's performance map, which details its operating limits (surge and choke lines). Total Pressure Ratio: The primary measure of compression (outlet/inlet total pressure). Isentropic Efficiency: Measures how effectively the work input is converted into a pressure rise. Mass Flow Rate: The volume or mass of gas moved at an operating point. Shaft Power/Torque: The mechanical power needed to drive the compressor. Total Temperature Ratio: Represents the work input into the fluid.
