Experimental method of measuring energy in the Bénard–Rayleigh problem

摘要

The energy content, introduced by the thermodynamics of steady states, is measured in the Bénard–Rayleigh problem using a heat fluxmeter connection. We describe the experimental apparatus, which can turn around a horizontal axis, thus inducing or destroying convective structures. After calibration, we were able to measure the heat flux through the fluid layer as well as the structural energy of the convective cells. These structural energy values confirm that the energy content is a steady‐state function.