工業熱力学の学習モデル : 理想ガスの状態方程式のCG

概要

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A characteristic equation of ideal gas is expressed as well known formula of Pv=RT. Generally, hyperbolic curves of Pv in isothermal change and straight lines of vT in isobaric change or PT in isovolumetric change are described in text books as two-dimensional expression. The curved surface of the equation should be obviously to see the whole appearance of the equation at a glance. The curved surfaces were previously made in two ways; one from the groups of hyperbolic curves made of wires and plywood boards. The curved surface was also made with straight wires which put in a row with three-dimensional arrangement on P and v axes. It is clearly seen that the curves of adiabatic change show to climb the curved surface three-dimensionally with twisting stream. However, these curved surfaces have been seen as finished forms without showing process of making them. In this report, as the educational purpose in technical thermodynamics the equation is described as that a curved surface is created as computer graphics one by one with time in hyperbolas of isothermal change or straight lines in isobaric or isovolumetric changes.
東海大学の論文