This text investigates the complex physical mechanisms of boiling, condensation, and gas-liquid flow within the context of industrial power and process engineering. P. B. Whalley, an expert in chemical engineering, provides a structured framework that bridges theoretical fluid dynamics with practical industrial application. The book serves as a technical resource for students and professionals, utilizing mathematical modeling and empirical data to explain phase changes and flow regimes.

Experts and academics frequently cite this work as a foundational text for students specializing in thermal-fluids engineering. Readers often note the technical density of the prose, which requires a solid background in undergraduate-level thermodynamics and fluid mechanics to fully comprehend the presented models.