Dissipationdue

Dissipationdue is a term used in physics and engineering to denote the portion of a system’s energy dissipation attributable to a particular mechanism. It is not a standard technical term, but is used as a concise label for the dissipation arising from a chosen cause, such as viscous damping, resistive heating, or radiative losses.

Definition and notation: If a system dissipates energy at a total rate P_tot, and a mechanism m dissipates energy at rate P_m, then the dissipationdue for m is P_m. The fractional contribution is f_m = P_m / P_tot. When several mechanisms are present, P_tot = sum over mechanisms P_m plus any remaining dissipation, and dissipationdue provides a convenient decomposition of the total loss.

Calculation and measurement: P_tot can be obtained from input power and energy storage changes, while P_m must be estimated by separating losses through modeling or experiments, such as monitoring temperature rise, current paths, or damping coefficients. In simulations, dissipationdue can be tracked by summing the energy removed by each mechanism over time.

Applications: The concept is used to identify dominant loss channels in engineering design, to analyze energy flows in control systems, and to study efficiency limits in thermodynamics. It also assists materials science researchers in quantifying contributions from different loss mechanisms in composites, films, or layered structures.

Limitations and terminology: Disentangling mechanisms can be model-dependent and sensitive to operating conditions; nonlinearities and coupling between channels may complicate attribution. Because dissipationdue is not universally standardized, practitioners often prefer explicit language such as “dissipation due to X.”