So sánh phương pháp

	Xấp xỉ Boussinesq	Khuếch tán Stefan-Maxwell
Lĩnh vực	Nhiệt động lực học	Nhiệt động lực học
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1903	1871
Người khởi xướng	Joseph Boussinesq	Josef Stefan and James Clerk Maxwell
Loại	Approximation technique	Diffusion equation
Công trình gốc	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
Tên gọi khác	buoyancy approximation, Boussinesq model	Stefan-Maxwell equation, multicomponent diffusion
Liên quan	3	3
Tóm tắt	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.