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Concept

Radiative equilibrium

Publications associées (27)

SESTET: A spatially explicit stream temperature model based on equilibrium temperature

Andrea Rinaldo, Enrico Bertuzzo, Luca Carraro

Stream-water temperature is a key variable controlling chemical, biological, and ecological processes in freshwater environments. Most models focus on a single river cross-section; however, temperature gradients along stretches and tributaries of a river n ...

2020

Optical characterization of multi-scale morphologically complex heterogeneous media – Application to snow with soot impurities

Sophia Haussener, Xiaoyu Dai

A multi-scale methodology for the radiative transfer analysis of heterogeneous media composed of morphologically-complex components on two distinct scales is presented. The methodology incorporates the exact morphology at the various scales and utilizes vo ...

Elsevier2018

Plasma exhaust and divertor studies in Japan and Europe broader approach, DEMO design activity

Holger Reimerdes

Power exhaust scenario and divertor design for a steady-state Japan (JA) DEMO and a pulse Europe (EU) DEMO1 have been investigated as one of the most important common issues in Broader Approach DEMO Design Activity. Radiative cooling is a common approach f ...

ELSEVIER SCIENCE SA2018

Radiative characterization of random fibrous media with optically large long cylindrical fibers

Sophia Haussener

Radiative heat transfer is analyzed in participating media consisting of long cylindrical fibers with a diameter in the limit of geometrical optics. The absorption and scattering coefficients and the scattering phase function of the medium are determined b ...

Elsevier2017

Experimental and Numerical Characterization of a New 45 kWel Multisource High-Flux Solar Simulator

Sophia Haussener, Gaël Jean Clément Levêque

The performance of a new high-flux solar simulator consisting of 18 × 2.5 kWel radiation modules has been evaluated. Grayscale images of the radiative flux distribution at the focus are acquired for each module individually using a water-cooled Lambertian ...

Optical Society of America2016

Tunable radiator for small satellite application

Jean-Daniel Landis, Frédéric Bongard, Tomislav Debogovic, Pedro Robustillo Bayon

A tunable radiator for space application has been developed to meet stringent requirements in terms of electrical and environmental specifications but also low mass, simple manufacturing and low cost. The element is based on the folded PIFA antenna, with s ...

2016

Optical Thickness Measurements of Vacuum Ultraviolet Radiation in the X2 Expansion Tube

Umar Sheikh

Experiments were conducted in the X2 expansion tube to measure vacuum ultraviolet radiation from shock layers representative of reentry conditions at flight equivalent velocities of 10.0 and 12.2 km/s. Cylindrical models of varying lengths were used to mak ...

2016