Retaining the format and philosophy of its successful predecessors, this revision of the best-selling and "most teachable book on the market" begins with basic principles followed with a patient development of the mathematics and physics leading to theories of fluids supported with examples and problem exercises. Revisions to Incompressible Flow, Fourth Edition include: advances in the theory of turbulent shear flows; the author's own course's test questions and PhD exam questions as homework problems; and a solutions manual.