Middleman S. An Introduction to Mass and Heat Transfer 1998

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Middleman S. An Introduction to Mass and Heat Transfer 1998

Textbook in PDF format The key elements in model development involve assumptions about the physics, the application of basic physical principles, the exploration of the implications of the resulting model, and the evaluation of the degree to which the model mimics reality. This latter point—evaluation—is critical. It requires that the model builder have some a priori sense of what is required of the model, in terms of both the specific phenomena that need to be described and the desired degree of correspondence of the predictions to the observations. As a consequence, a great deal of effort has been put forth to provide many examples of experimental data against which the results of modeling exercises can be compared. Students need to see that simple models can often be quite accurate, and that when a model fails to yield the required accuracy, the assumptions of the model need to be explored and reconsidered