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Enhancing RMCRT Model with Isotropic Scattering and Validation Against Siegel’s Solution

This study focuses on the integration of isotropic scattering into the Radiative Monte Carlo (RMCRT) model. Verification testing is conducted using an exact solution (Siegel, 1987), ensuring the model's accuracy. A grid convergence analysis shows that discrepancies diminish with increased mesh refinement. Results include a comparison of RMCRT against exact solutions across various optical thicknesses and scattering albedos. Ongoing studies will assess the timing and accuracy of RMCRT versus Discrete Ordinates Method (DOM), further evaluating the quality of results in practical scenarios.

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Enhancing RMCRT Model with Isotropic Scattering and Validation Against Siegel’s Solution

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  1. RMCRT • Isotropic scattering added to the model • Verification testing performed using an exact solution (Siegel, 1987) • Grid convergence analysis performed • Discrepancy diminishes with increased mesh refinement

  2. RMCRT Results RMCRT (dots) vs. Exact solution (lines) for varying optical thicknesses and scattering albedos for Siegel’s benchmark case (Siegel, 1987). Grid convergence of the L1 error norms for the Siegel case where the scattering coefficient is 8 m-1, and the absorption coefficient is 2m-1. Seigel, R. “Transient Radiative Cooling of a droplet-filled layer,” vol 109, pp. 159-164,

  3. RMCRT ON IFRF • Timing and accuracy studies of RMCRT vs. DOM are currently under way • Will serve as a way to compare the quality of the results from RMCRT vs DOM in a realistic case

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