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	Aproksymacja Boussinesqa	Dyfuzja Stefana-Maxwella	Cykl sprężania pary
Dziedzina	Termodynamika	Termodynamika	Termodynamika
Rodzina	Process / pipeline	Process / pipeline	Process / pipeline
Rok powstania	1903	1871	1834
Twórca	Joseph Boussinesq	Josef Stefan and James Clerk Maxwell	Jacob Perkins
Typ	Approximation technique	Diffusion equation	Thermodynamic cycle
Źródło pierwotne	Boussinesq, J. (1903). Théorie Analytique de la Chaleur. Gauthier-Villars.	Reid, R. C., Prausnitz, J. M., & Poling, B. E. (1987). The Properties of Gases and Liquids (4th ed.). McGraw-Hill. ISBN: 978-0071247009	Stoecker, W. F., Jones, J. W., & Sunnam, B. A. (1998). Refrigeration and Air Conditioning (2nd ed.). McGraw-Hill. ISBN: 978-0070613638
Inne nazwy	buoyancy approximation, Boussinesq model	Stefan-Maxwell equation, multicomponent diffusion	refrigeration cycle, heat pump cycle
Pokrewne	3	3	3
Podsumowanie	The Boussinesq Approximation simplifies the governing equations for natural convection by treating density as constant except in the buoyancy term. This approximation is valid when temperature variations produce small density changes and allows researchers to solve coupled heat-fluid flow problems without solving the full, nonlinear compressibility equations. The Boussinesq Approximation is fundamental to analyzing buoyancy-driven flows in buildings, enclosures, and geophysical applications.	The Stefan-Maxwell diffusion equation describes how multiple chemical species diffuse through each other in a mixture, accounting for interactions between all species pairs. Unlike Fick's law, which assumes species diffuse independently, Stefan-Maxwell theory captures the coupling that occurs when species with different diffusivities move at different rates. This is essential for analyzing gas separation, combustion, catalytic processes, and reactive distillation.	The Vapor Compression Cycle is the fundamental thermodynamic cycle for refrigeration systems and heat pumps. It describes how mechanical work is used to transfer heat from a cold space (evaporator) to a warm space (condenser), operating against the natural temperature gradient. The cycle consists of four processes: isentropic compression, isobaric condensation, isenthalpic throttling, and isobaric evaporation.