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Nils Erland L. Haugen

Seniorforsker

Nils Erland L. Haugen

Seniorforsker

Nils Erland L. Haugen
Telefon: 986 08 683
E-post:
Avdeling: Termisk energi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/1904972/

A Stefan flow can be generated during a phase change or reactions of a particle immersed in a fluid. This study investigates the effect of Stefan flow on the exchange of momentum (drag coefficient (CD)) and heat transfer (Nusselt number (Nu)) between the particle and bulk-fluid. Fully resolved...

Forfattere Thamali R. Jayawickrama Nils Erland L. Haugen Matthâus Ulrich Bäbler Muhammad Aqib Chishty Kentaro Umeki
År 2021
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/1870667/

In this paper, a kinetic-diffusion surface combustion model is examined. The model is modified such that two effects of turbulence are included: 1) enhancement of the mass transfer due to relative velocity between particles and fluid and 2) reduction of the mass transfer due to turbulence-induced...

Forfattere Ewa Malgorzata Karchniwy Nils Erland L. Haugen Adam F. Klimanek Øyvind Langørgen Slawomir Sladek
År 2021
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/1826666/

We investigate the effect of turbulence on the combined condensational and collisional growth of cloud droplets by means of high-resolution direct numerical simulations of turbulence and a superparticle approximation for droplet dynamics and collisions. The droplets are subject to turbulence as well...

Forfattere Xiang-Yu Li Axel Brandenburg Gunilla Svensson Nils Erland L. Haugen Bernhard Mehlig Igor Rogachevskii
År 2020
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/1665876/

Condensational growth of cloud droplets due to supersaturation fluctuations is investigated by solving the hydrodynamic and thermodynamic equations using direct numerical simulations (DNS) with droplets being modeled as Lagrangian particles. The supersaturation field is calculated directly by...

Forfattere Xiangyu Li Gunilla Svensson Axel Brandenburg Nils Erland L. Haugen
År 2019
Type Vitenskapelig artikkel
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/1702209/

Particle laden flows with reactive particles are common in industrial applications. Chemical reactions inside the particle can generate a Stefan flow that affects heat, mass and momentum transfer between the particle and the bulk flow. This study aims at investigating the effect of Stefan flow on...

Forfattere Thamali R. Jayawickrama Nils Erland L. Haugen Matthâus Ulrich Bäbler Muhammad Aqib Chishty Kentaro Umeki
År 2019
Type Vitenskapelig artikkel