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चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| स्टीफन-मैक्सवेल विसरण× | बुसिनेस्क सन्निकटन (Boussinesq Approximation)× | |
|---|---|---|
| क्षेत्र | ऊष्मागतिकी | ऊष्मागतिकी |
| परिवार | Process / pipeline | Process / pipeline |
| उद्भव वर्ष≠ | 1871 | 1903 |
| प्रवर्तक≠ | Josef Stefan and James Clerk Maxwell | Joseph Boussinesq |
| प्रकार≠ | Diffusion equation | Approximation technique |
| मौलिक स्रोत≠ | Reid, R. C., Prausnitz, J. M., & Poling, B. E. (1987). The Properties of Gases and Liquids (4th ed.). McGraw-Hill. ISBN: 978-0071247009 | Boussinesq, J. (1903). Théorie Analytique de la Chaleur. Gauthier-Villars. link ↗ |
| उपनाम | Stefan-Maxwell equation, multicomponent diffusion | buoyancy approximation, Boussinesq model |
| संबंधित | 3 | 3 |
| सारांश≠ | 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 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. |
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