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Caption: Figure 11: Schlieren picture of the airflow field at flight Mach number 7.725 for perfect gas mode (a); CFD simulations at same conditions; (b) comparison between Schlieren picture and density contour (c).
The pressure [DELTA]p(t) inside the thermoplastic preform is closely related to the internal volume of the membrane via the perfect gas thermodynamic law [10] (Fig.
He details, for instance, how a person on the ground can measure the height of a tall building and how Boyle's law defines the relationship of volume and pressure for a perfect gas. The book relates how units of measurement are applied in such fields as mechanical engineering, physics, optics, and astronomy.
One could have R = 1 with the dimension zero by definition of T read on a perfect gas thermometer.