Optimising Boiling by Surface Design from the Nanoscale Upwards

Edward Smith; Tassos G. Karayiannis; Prashant Valluri; Alessio Lavino; O. K. Matar

Abstract / Description of output

Molecular Dynamics (MD) is a promising approach for capturing the fundamental mechanism underpinning bubble nucleation, a challenge which cannot be overcome by traditional computational fluid dynamics (CFD) models. By constructing a heated surface at the molecular scale, we model the creation and growth of a bubble. In this talk, we present an introduction to MD, before showing nucleation results for a range of different surfaces. Nucleation rates are seen to depend on the details of the surface and we discuss insights provided by the MD approach. The challenge is to make these MD data relevant to larger scales, by linking these nanoscale bubbles to CFD simulations and optimising surface design to maximise nucleation. We discuss potential solutions to this problem, using multi-scale methods guided by a programme of experimental measurements. *Engineering and Physical Sciences Research Council, UK, funding through project EMBOSS (grant number EP/S019545/1)

Original language	English
Publication status	Published - Nov 2019
Event	72nd Annual Meeting of the APS Division of Fluid Dynamics - Washington State Convention Center, Seattle, United States Duration: 23 Nov 2019 → 26 Nov 2019 https://www.apsdfd2019.org/

Conference

Conference	72nd Annual Meeting of the APS Division of Fluid Dynamics
Country/Territory	United States
City	Seattle
Period	23/11/19 → 26/11/19
Internet address	https://www.apsdfd2019.org/

Access to Document

http://meetings.aps.org/Meeting/DFD19/Session/H24.11

Cite this

@conference{af7d5c4e703148319e580bd1d2e4f7f9,

title = "Optimising Boiling by Surface Design from the Nanoscale Upwards",

abstract = "Molecular Dynamics (MD) is a promising approach for capturing the fundamental mechanism underpinning bubble nucleation, a challenge which cannot be overcome by traditional computational fluid dynamics (CFD) models. By constructing a heated surface at the molecular scale, we model the creation and growth of a bubble. In this talk, we present an introduction to MD, before showing nucleation results for a range of different surfaces. Nucleation rates are seen to depend on the details of the surface and we discuss insights provided by the MD approach. The challenge is to make these MD data relevant to larger scales, by linking these nanoscale bubbles to CFD simulations and optimising surface design to maximise nucleation. We discuss potential solutions to this problem, using multi-scale methods guided by a programme of experimental measurements. *Engineering and Physical Sciences Research Council, UK, funding through project EMBOSS (grant number EP/S019545/1)",

author = "Edward Smith and Karayiannis, {Tassos G.} and Prashant Valluri and Alessio Lavino and Matar, {O. K.}",

year = "2019",

month = nov,

language = "English",

note = "72nd Annual Meeting of the APS Division of Fluid Dynamics ; Conference date: 23-11-2019 Through 26-11-2019",

url = "https://www.apsdfd2019.org/",

}

TY - CONF

T1 - Optimising Boiling by Surface Design from the Nanoscale Upwards

AU - Smith, Edward

AU - Karayiannis, Tassos G.

AU - Valluri, Prashant

AU - Lavino, Alessio

AU - Matar, O. K.

PY - 2019/11

Y1 - 2019/11

N2 - Molecular Dynamics (MD) is a promising approach for capturing the fundamental mechanism underpinning bubble nucleation, a challenge which cannot be overcome by traditional computational fluid dynamics (CFD) models. By constructing a heated surface at the molecular scale, we model the creation and growth of a bubble. In this talk, we present an introduction to MD, before showing nucleation results for a range of different surfaces. Nucleation rates are seen to depend on the details of the surface and we discuss insights provided by the MD approach. The challenge is to make these MD data relevant to larger scales, by linking these nanoscale bubbles to CFD simulations and optimising surface design to maximise nucleation. We discuss potential solutions to this problem, using multi-scale methods guided by a programme of experimental measurements. *Engineering and Physical Sciences Research Council, UK, funding through project EMBOSS (grant number EP/S019545/1)

AB - Molecular Dynamics (MD) is a promising approach for capturing the fundamental mechanism underpinning bubble nucleation, a challenge which cannot be overcome by traditional computational fluid dynamics (CFD) models. By constructing a heated surface at the molecular scale, we model the creation and growth of a bubble. In this talk, we present an introduction to MD, before showing nucleation results for a range of different surfaces. Nucleation rates are seen to depend on the details of the surface and we discuss insights provided by the MD approach. The challenge is to make these MD data relevant to larger scales, by linking these nanoscale bubbles to CFD simulations and optimising surface design to maximise nucleation. We discuss potential solutions to this problem, using multi-scale methods guided by a programme of experimental measurements. *Engineering and Physical Sciences Research Council, UK, funding through project EMBOSS (grant number EP/S019545/1)

M3 - Abstract

T2 - 72nd Annual Meeting of the APS Division of Fluid Dynamics

Y2 - 23 November 2019 through 26 November 2019

ER -

Optimising Boiling by Surface Design from the Nanoscale Upwards

Abstract / Description of output

Conference

Access to Document

Fingerprint

Cite this