APPLIED THERMO-FLUID DYNAMICS (UNIT 2)
Learning outcomes of the course unit
Knowledge and understanding:
At the end of the course the student will learn the basic principles of heat and mass transfer and fluid flow.
Applying knowledge and understanding:
The student will acquire knowledge about the application of transport phenomena principles to the processes involved in engineering applications, with particular reference to the food industry. Making judgments:
By the end of the course the student will have the tools to critically evaluate the design choices in the field of heat transfer apparatuses design.
The student must possess the ability to present clearly the procedure adopted in the design of heat transfer apparatuses.
To follow the course with profit requires knowledge of the basic concepts of Applied Physics.
Course contents summary
The course is divided into two parts: a theoretical and practical activities. The theoretical part covers the following topics: Steady and unsteady heat conduction. Finned surfaces. Heat conduction in two-dimensional systems. Numerical analysis: finite difference formulation of the equation of Fourier. Unsteady heat conduction. Non dimensional form of the Fourier equation and its boundary conditions. Computation Termofluidodynamics. The practical activities is an integral part of the course and it is dedicated to numerical exercises intended as a moment of verification and clarification of the theoretical concepts learned in the lectures. Part of the exercise activity is carried out in the computer lab and is devoted to the numerical analysis applied to problems of heat transfer and fluid flow. In order to acquire an applicative knowledge, too this part of the course is based on lectures to be held in the computer lab with the use of the Matlab and Comsol Multyiphysics environment.
Steady an unsteady heat conduction. Steady-state heat conduction in one-dimensional systems. Finned surfaces. Heat conduction in two-dimensional systems. Formulation finite difference equation of Fourier. Unsteady heat conduction. Non dimensional form of the Fourier equation and of its boundary conditions: Fourier number, Biot number; limiting cases for large and small Biot, any Biot case: infinite flat plate, infinite cylinder, sphere, finite-dimensional solids: box and cylinder.
Computational Thermal Fluid Dynamics
F. P. INCOPRERA, D P DE WITT: " Fundamentals of Heat and Mass Transfer ", John Wiley & Sons, New York. Additional educational material available on the University web learning site “Campus Net” .
The theoretical part of the course will be illustrated by means of lectures. The part devoted to the lab training also includes an activity pursued independently by the students, followed by an elaboration and discussion of the results.
Assessment methods and criteria
The exam is based on a written test followed by an oral examination. The verification is so weighted: 50% written test (correct resolution of a practical exercise), 50% oral exam (theoretical questions and speaking ability).
Lecture attendance is highly recommended.