Fluid Dynamics: Flow Past Immersed Bodies

Understanding how liquids and gases flow around solid objects is essential for designing everything from vehicles to offshore structures. This text-based course guides you through the foundational physics of fluids interacting with submerged bodies. You will transition from basic fluid concepts to calculating the precise forces of drag and lift acting on various shapes. Through clear written explanations, practical formulas, and step-by-step calculations, you will gain the confidence to analyze real-world aerodynamic and hydrodynamic scenarios. What you'll learn: - Understand fundamental fluid properties, pressure distributions, and shear stresses acting on submerged surfaces. - Calculate drag and lift forces using standard engineering coefficients and dimensionless numbers. - Analyze boundary layer development, transition, and the mechanics of flow separation. - Distinguish between streamlined and bluff bodies to optimize aerodynamic performance. - Apply modern design principles and interpret flow behavior using computational fluid dynamics concepts. The course starts with essential terminology and the governing equations of fluid motion, then progresses to detailed analyses of external flows over flat plates, spheres, and airfoils. You will practice applying these concepts through written engineering scenarios and calculation exercises. This course is designed for engineering students, designers, and curious beginners, requiring only basic algebra and physics to get started. Start reading today to master the core principles of external fluid flows.