Nair, Vishnu

Nair Vishnu
Host
Imperial College London
Country
India
Curriculum Vitae
Vishnu CV43.95 KB
ESR4 - The effect of buoyancy on the dynamics of aerosols and particles
Objectives
  1. Numerical study (Direct Numerical Simulation) of the interaction between the flow interface and an approximately collocated buoyancy interface
  2. Influence of the nonlinear dependence of buoyancy on mixing fraction in clouds, and how these enhance/reduce turbulent exchange
  3. Dynamics of buoyant inertial particles
     

 

Expected Results
  1. Parameterisations of the dynamics of aerosols/droplets for incorporation in GCMs and atmospheric dispersion models
  2. Turbulence models for LES/RANS
Planned secondment(s)
  • TAU (Tel Aviv)       Month 30-32: set up their case in the DNS and compare
  • POLITO (Torino)  Month: 22-24: develop model for droplet coalescence
Comments

My role in the project as ESR 4 involves the computational study of cloud-environment interface by setting up and performing Direct Numerical Simulation of turbulent mixing at cloud edges. Entrainment/detrainment across the interface by taking into account both thermodynamics and cloud microphysics, will also be studied.

Publications

Dynamics of Subsiding Shells in Shallow Cumulus Clouds with Updrafts

Year
2019
Document type
Article
Authors
V. Nair, T. Heus, M. van Reeuwijk
Source

Journal of Atmospheric Sciences

Dynamics of Subsiding Shells in Shallow Cumulus Clouds with Updrafts; Nair8.45 MB

Dynamics of subsiding shells in actively growing clouds with vertical updrafts

Year
2019
Document type
Other
Authors
V. Nair, T. Heus, M. van Reeuwijk
Source

17th European Turbulence Conference, 3 - 6 September 2019, Turin, Italy

External link
http://www.etc17.it/
Nair_ETC17101.98 KB

Dynamics of subsiding shells in actively growing clouds with vertical updrafts

Year
2019
Document type
Other
Authors
V. Nair, T. Heus, M. van Reeuwijk
Source

Convection Parametrization: "Progress and Challenges", workshop at the Met Office in Exeter. Exeter, England. (15-19 July 2019)

Abstract_MetOffice.pdf27.58 KB

Dynamics of subsiding shells in actively growing clouds with vertical updrafts

Year
2019
Document type
Other
Authors
V. Nair, T. Heus, M. van Reeuwijk
Source

EGU General Assembly 2019. 7 - 12 April 2019. Vienna, Austria. 

Abstract EGu2019 Vishnu Nair33.26 KB

Subsiding Shells in Actively Growing Shallow Cumulus clouds: a DNS study

Year
2018
Document type
Other
Authors
V. Nair, M. van Reeuwijk
Source

UK Turbulence Consortium Annual Review conference. 10 - 11 September 2018. London, UK.   

Abstract Vishnu Nair115.81 KB