CFD: Brief Notes - The book discusses CFD as subject of interest to B.E./B.Tech & M.E./M.Tech degree students. The book introduces first the most accepted CFD concepts such as governing equations and PDE discretisation, next CFD methodology concepts such as FDM, FEM and FVM, and finally CFD applications to heat transfer and fluid flow problems. The book is divided into two parts (Concepts & Methods) and four chapters (CFD, FDM, FEM & FVM). This book is intended mainly to serve as a textbook for M.E./M.Tech. (Cryogenic Engineering) and B.E./B.Tech.(Aeronautical Engineering) and as reference book for BE & ME (Mechanical, Civil, Automobile, Mechatronics and Manufacturing Engineering). This book covers all topics for CFD in M.E. (Cryogenic Engineering) and B.E.(Aeronautical Engineering). Again to say, It is my hope that book will become an invaluable source of essential information for academic, industrial, and governmental researchers working in aeronautical engineering, mechanical engineering, cryogenic engineering, electrical engineering, aerospace engineering, computational methods and others interested in CFD and modelling.