Introduction to Multiphase Flow: Fundamentals and Flow Regimes

Understanding how multiple phases of matter—such as gas and liquid—flow together is essential for designing efficient chemical, petroleum, and power generation systems. This text-based course demystifies the complex fluid dynamics of multiphase mixtures without requiring prior specialization. You will progress from learning fundamental definitions of void fraction and superficial velocity to analyzing complex flow patterns in horizontal and vertical pipes. By studying clear, written explanations and practical engineering scenarios, you will develop the analytical skills needed to predict pressure drops, identify flow regimes, and apply these concepts to modern industrial processes. What you'll learn: 1. Understand the basic terminology of multiphase systems, including hold-up, slip ratio, and superficial velocity. 2. Identify different flow regimes for gas-liquid and liquid-liquid mixtures in both horizontal and vertical conduits. 3. Apply fundamental conservation equations and analytical models to predict pressure drop and liquid holdup. 4. Analyze flow pattern transition criteria using classical mapping techniques and modern digital classification concepts. 5. Evaluate industrial applications of multiphase flow, from oil and gas transport to modern carbon capture systems. 6. Practice solving practical process engineering problems through structured, step-by-step written calculations. The course begins with foundational fluid mechanics concepts and definitions before moving into flow regime identification, mathematical modeling techniques, and practical industrial design applications. This course is designed for engineering students, process technicians, and junior engineers seeking a clear, accessible introduction to multiphase fluid dynamics, with no advanced background in multiphase physics required. Start reading today to master the essential principles of multiphase flow and elevate your process engineering skills.