TY - GEN
T1 - Modeling of turbulence effect on radar reflectivity factor in clouds
AU - Matsuda, Keigo
AU - Onishi, Ryo
AU - Hirahara, Masaaki
AU - Takahashi, Keiko
AU - Kurose, Ryoichi
AU - Komori, Satoru
PY - 2013
Y1 - 2013
N2 - This study proposes a radar reflectivity factor model considering the effect of turbulent clustering of cloud droplets. A three-dimensional direct numerical simulation of particle-laden isotropic turbulence is conducted to obtain turbulent clustering data. The power spectrum of droplet number density fluctuation, on which the radar reflectivity factor depends, is calculated from the turbulent clustering data. The power spectrum shows strong dependency on the Stokes number. It is confirmed that the proposed model can predict the Stokes number and the wavenumber dependencies of the turbulent clustering effect.
AB - This study proposes a radar reflectivity factor model considering the effect of turbulent clustering of cloud droplets. A three-dimensional direct numerical simulation of particle-laden isotropic turbulence is conducted to obtain turbulent clustering data. The power spectrum of droplet number density fluctuation, on which the radar reflectivity factor depends, is calculated from the turbulent clustering data. The power spectrum shows strong dependency on the Stokes number. It is confirmed that the proposed model can predict the Stokes number and the wavenumber dependencies of the turbulent clustering effect.
UR - http://www.scopus.com/inward/record.url?scp=85034269072&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85034269072&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85034269072
T3 - International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
BT - International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
PB - TSFP-8
T2 - 8th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2013
Y2 - 28 August 2013 through 30 August 2013
ER -