Free online courseMechanical - Fluid Mechanics

Course Description

Strengthen your mechanical engineering fundamentals by learning how fluids behave at rest and in motion, and how to translate that behavior into reliable calculations and design decisions. This free online course in fluid mechanics is designed to help you move from memorizing formulas to thinking like an engineer: defining a flow situation, choosing the right assumptions, and using core principles to reach clear, defensible answers.

You will connect physical intuition with analytical tools, starting from essential concepts such as fluid properties, shear behavior, and the meaning of pressure in a fluid. From there, you will gain confidence handling hydrostatics topics that show up constantly in industry and academics, including manometry, buoyancy, stability of floating bodies, and forces on submerged surfaces. The course then shifts into describing fluid motion using common viewpoints in engineering practice and builds toward conservation laws that power most everyday problem solving in fluid flow.

As you progress, you will work with continuity, momentum, and energy ideas in ways that directly support applications like pipe and jet interactions, measurement devices, losses and efficiency considerations, and practical diagnostics of what could be happening inside a system when readings or performance do not match expectations. You will also develop a clearer understanding of viscous effects, laminar versus turbulent behavior, internal flows through pipes, and why non-dimensional thinking and similarity matter when comparing experiments, prototypes, and full-scale equipment.

Beyond steady idealizations, the course introduces key phenomena that help explain real-world behavior, including free-surface effects, unsteady flow situations such as water hammer, and foundational boundary-layer ideas that underpin drag and near-wall behavior. Concept checks and exercises are integrated to reinforce learning and to help you spot typical mistakes before they become habits. By the end, you will be better prepared for exams, interviews, and professional tasks that depend on fluid mechanics across mechanical and industrial settings.